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Crashing when starting Forge 1.16.5

Snigir

By Snigir
in Support & Bug Reports

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Snigir Tree Puncher

Snigir

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Hey there, i have this problem when i launch Minecraft on the Forge version of 1.16.5. So everytime i start the process, the Minecraftlauncher closes and for a short amount of time the forge-mod-loader window pops up, but then closes itself. After that the launcher opens again with the Errorcode: Exit-Code:0.

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Snigir Tree Puncher

Snigir

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[15Mär2021 14:32:24.097] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher running: args [--username, Snigir, --version, 1.16.5-forge-36.0.58, --gameDir, C:\Users\Lionel Haas\AppData\Roaming\.minecraft, --assetsDir, C:\Users\Lionel Haas\AppData\Roaming\.minecraft\assets, --assetIndex, 1.16, --uuid, ba86c25fb23e4296907fb65a6272b237, --accessToken, ????????, --userType, mojang, --versionType, release, --launchTarget, fmlclient, --fml.forgeVersion, 36.0.58, --fml.mcVersion, 1.16.5, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20210115.111550]
[15Mär2021 14:32:24.104] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher 8.0.9+86+master.3cf110c starting: java version 1.8.0_51 by Oracle Corporation
[15Mär2021 14:32:24.118] [main/DEBUG] [cpw.mods.modlauncher.LaunchServiceHandler/MODLAUNCHER]: Found launch services [minecraft,testharness,fmlclient,fmlserver]
[15Mär2021 14:32:24.130] [main/WARN] [cpw.mods.modlauncher.SecureJarHandler/]: LEGACY JDK DETECTED, SECURED JAR HANDLING DISABLED
[15Mär2021 14:32:24.140] [main/DEBUG] [cpw.mods.modlauncher.NameMappingServiceHandler/MODLAUNCHER]: Found naming services : []
[15Mär2021 14:32:24.211] [main/DEBUG] [cpw.mods.modlauncher.LaunchPluginHandler/MODLAUNCHER]: Found launch plugins: [mixin,eventbus,object_holder_definalize,runtime_enum_extender,accesstransformer,capability_inject_definalize,runtimedistcleaner]
[15Mär2021 14:32:24.224] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Discovering transformation services
[15Mär2021 14:32:24.261] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Found additional transformation services from discovery services: []
[15Mär2021 14:32:24.305] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Found transformer services : [mixin,fml]
[15Mär2021 14:32:24.306] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Transformation services loading
[15Mär2021 14:32:24.307] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Loading service mixin
[15Mär2021 14:32:24.307] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Loaded service mixin
[15Mär2021 14:32:24.307] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Loading service fml
[15Mär2021 14:32:24.308] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/]: Injecting tracing printstreams for STDOUT/STDERR.
[15Mär2021 14:32:24.312] [main/DEBUG] [net.minecraftforge.fml.loading.LauncherVersion/CORE]: Found FMLLauncher version 36.0
[15Mär2021 14:32:24.312] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: FML 36.0 loading
[15Mär2021 14:32:24.312] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: FML found ModLauncher version : 8.0.9+86+master.3cf110c
[15Mär2021 14:32:24.312] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Initializing modjar URL handler
[15Mär2021 14:32:24.313] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: FML found AccessTransformer version : 3.0.1+61+master.47bca0e
[15Mär2021 14:32:24.314] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: FML found EventBus version : 4.0.0+65+master.6080a3f
[15Mär2021 14:32:24.314] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Found Runtime Dist Cleaner
[15Mär2021 14:32:24.319] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: FML found CoreMod version : 4.0.6+14+master.c21a551
[15Mär2021 14:32:24.319] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Found ForgeSPI package implementation version 3.2.0+13+master.8ddb2cc
[15Mär2021 14:32:24.320] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Found ForgeSPI package specification 3
[15Mär2021 14:32:24.614] [main/INFO] [net.minecraftforge.fml.loading.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust
[15Mär2021 14:32:24.615] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Loaded service fml
[15Mär2021 14:32:24.618] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Configuring option handling for services
[15Mär2021 14:32:24.639] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Transformation services initializing
[15Mär2021 14:32:24.639] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Initializing transformation service mixin
[15Mär2021 14:32:24.643] [main/DEBUG] [mixin/]: Mixin bootstrap service org.spongepowered.asm.service.mojang.MixinServiceLaunchWrapperBootstrap is not available: LaunchWrapper is not available
[15Mär2021 14:32:24.649] [main/DEBUG] [mixin/]: MixinService [ModLauncher] was successfully booted in sun.misc.Launcher$AppClassLoader@4554617c
[15Mär2021 14:32:24.674] [main/INFO] [mixin/]: SpongePowered MIXIN Subsystem Version=0.8.2 Source=file:/C:/Users/Lionel%20Haas/AppData/Roaming/.minecraft/libraries/org/spongepowered/mixin/0.8.2/mixin-0.8.2.jar Service=ModLauncher Env=CLIENT
[15Mär2021 14:32:24.677] [main/DEBUG] [mixin/]: Initialising Mixin Platform Manager
[15Mär2021 14:32:24.677] [main/DEBUG] [mixin/]: Adding mixin platform agents for container ModLauncher Root Container(4f56a0a2)
[15Mär2021 14:32:24.678] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentMinecraftForge for ModLauncher Root Container(4f56a0a2)
[15Mär2021 14:32:24.679] [main/DEBUG] [mixin/]: MixinPlatformAgentMinecraftForge rejected container ModLauncher Root Container(4f56a0a2)
[15Mär2021 14:32:24.679] [main/DEBUG] [mixin/]: Instancing new MixinPlatformAgentDefault for ModLauncher Root Container(4f56a0a2)
[15Mär2021 14:32:24.680] [main/DEBUG] [mixin/]: MixinPlatformAgentDefault accepted container ModLauncher Root Container(4f56a0a2)
[15Mär2021 14:32:24.683] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Initialized transformation service mixin
[15Mär2021 14:32:24.683] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Initializing transformation service fml
[15Mär2021 14:32:24.683] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/CORE]: Setting up basic FML game directories
[15Mär2021 14:32:24.685] [main/DEBUG] [net.minecraftforge.fml.loading.FileUtils/CORE]: Found existing GAMEDIR directory : C:\Users\Lionel Haas\AppData\Roaming\.minecraft
[15Mär2021 14:32:24.685] [main/DEBUG] [net.minecraftforge.fml.loading.FMLPaths/CORE]: Path GAMEDIR is C:\Users\Lionel Haas\AppData\Roaming\.minecraft
[15Mär2021 14:32:24.686] [main/DEBUG] [net.minecraftforge.fml.loading.FileUtils/CORE]: Found existing MODSDIR directory : C:\Users\Lionel Haas\AppData\Roaming\.minecraft\mods
[15Mär2021 14:32:24.686] [main/DEBUG] [net.minecraftforge.fml.loading.FMLPaths/CORE]: Path MODSDIR is C:\Users\Lionel Haas\AppData\Roaming\.minecraft\mods
[15Mär2021 14:32:24.686] [main/DEBUG] [net.minecraftforge.fml.loading.FileUtils/CORE]: Found existing CONFIGDIR directory : C:\Users\Lionel Haas\AppData\Roaming\.minecraft\config
[15Mär2021 14:32:24.686] [main/DEBUG] [net.minecraftforge.fml.loading.FMLPaths/CORE]: Path CONFIGDIR is C:\Users\Lionel Haas\AppData\Roaming\.minecraft\config
[15Mär2021 14:32:24.687] [main/DEBUG] [net.minecraftforge.fml.loading.FMLPaths/CORE]: Path FMLCONFIG is C:\Users\Lionel Haas\AppData\Roaming\.minecraft\config\fml.toml
[15Mär2021 14:32:24.687] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/CORE]: Loading configuration
[15Mär2021 14:32:24.744] [main/DEBUG] [net.minecraftforge.fml.loading.FileUtils/CORE]: Found existing default config directory directory : C:\Users\Lionel Haas\AppData\Roaming\.minecraft\defaultconfigs
[15Mär2021 14:32:24.744] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/CORE]: Preparing ModFile
[15Mär2021 14:32:24.748] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/CORE]: Preparing launch handler
[15Mär2021 14:32:24.748] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Using fmlclient as launch service
[15Mär2021 14:32:25.276] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Received command line version data  : MC Version: '1.16.5' MCP Version: '20210115.111550' Forge Version: '36.0.58' Forge group: 'net.minecraftforge'
[15Mär2021 14:32:25.278] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: Found JAR asm at path C:\Users\Lionel Haas\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm\9.0\asm-9.0.jar
[15Mär2021 14:32:25.279] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: Found probable library path C:\Users\Lionel Haas\AppData\Roaming\.minecraft\libraries
[15Mär2021 14:32:25.281] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: Found forge path C:\Users\Lionel Haas\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.16.5-36.0.58\forge-1.16.5-36.0.58-universal.jar is present
[15Mär2021 14:32:25.282] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: SRG MC at C:\Users\Lionel Haas\AppData\Roaming\.minecraft\libraries\net\minecraft\client\1.16.5-20210115.111550\client-1.16.5-20210115.111550-srg.jar is missing
[15Mär2021 14:32:25.282] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: MC Extras at C:\Users\Lionel Haas\AppData\Roaming\.minecraft\libraries\net\minecraft\client\1.16.5-20210115.111550\client-1.16.5-20210115.111550-extra.jar is missing
[15Mär2021 14:32:25.283] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: Forge patches at C:\Users\Lionel Haas\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.16.5-36.0.58\forge-1.16.5-36.0.58-client.jar is missing
[15Mär2021 14:32:25.284] [main/FATAL] [net.minecraftforge.fml.loading.FMLCommonLaunchHandler/CORE]: Failed to find Minecraft resource version 1.16.5-20210115.111550 at C:\Users\Lionel Haas\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.16.5-36.0.58\forge-1.16.5-36.0.58-client.jar
[15Mär2021 14:32:25.286] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]: java.lang.RuntimeException: Missing minecraft resource!
[15Mär2021 14:32:25.286] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.fml.loading.FMLCommonLaunchHandler.lambda$validatePaths$4(FMLCommonLaunchHandler.java:124)
[15Mär2021 14:32:25.287] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.fml.loading.FMLCommonLaunchHandler$$Lambda$169/1293677337.accept(Unknown Source)
[15Mär2021 14:32:25.287] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
[15Mär2021 14:32:25.288] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
[15Mär2021 14:32:25.288] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.fml.loading.FMLCommonLaunchHandler.validatePaths(FMLCommonLaunchHandler.java:121)
[15Mär2021 14:32:25.288] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.fml.loading.FMLLoader.setupLaunchHandler(FMLLoader.java:202)
[15Mär2021 14:32:25.289] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.fml.loading.FMLServiceProvider.initialize(FMLServiceProvider.java:94)
[15Mär2021 14:32:25.289] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.TransformationServiceDecorator.onInitialize(TransformationServiceDecorator.java:68)
[15Mär2021 14:32:25.290] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.TransformationServicesHandler.lambda$initialiseTransformationServices$7(TransformationServicesHandler.java:107)
[15Mär2021 14:32:25.290] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.TransformationServicesHandler$$Lambda$93/1491755116.accept(Unknown Source)
[15Mär2021 14:32:25.290] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.util.HashMap$Values.forEach(HashMap.java:972)
[15Mär2021 14:32:25.291] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.TransformationServicesHandler.initialiseTransformationServices(TransformationServicesHandler.java:107)
[15Mär2021 14:32:25.291] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.TransformationServicesHandler.initializeTransformationServices(TransformationServicesHandler.java:59)
[15Mär2021 14:32:25.292] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.Launcher.run(Launcher.java:76)
[15Mär2021 14:32:25.292] [main/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1052]:     at cpw.mods.modlauncher.Launcher.main(Launcher.java:66)
 

 

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Snigir Tree Puncher

Snigir

Posted
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Posted

JVM info: Oracle Corporation - 1.8.0_261 - 25.261-b12
java.net.preferIPv4Stack=true
Found java version 1.8.0_261
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.InstallerPanel.updateFilePath(InstallerPanel.java:370)
    at net.minecraftforge.installer.InstallerPanel.<init>(InstallerPanel.java:351)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:169)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 25 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 31 more
Extracting json
Considering minecraft client jar
Downloading libraries
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:forge:1.16.5-36.0.58
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm:9.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-commons:9.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-tree:9.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-util:9.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-analysis:9.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library cpw.mods:modlauncher:8.0.9
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library cpw.mods:grossjava9hacks:1.3.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:accesstransformers:3.0.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.antlr:antlr4-runtime:4.9.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:eventbus:4.0.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:forgespi:3.2.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:coremods:4.0.6
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:unsafe:0.2.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.electronwill.night-config:core:3.6.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.electronwill.night-config:toml:3.6.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.jline:jline:3.12.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.apache.maven:maven-artifact:3.6.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.jodah:typetools:0.8.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.apache.logging.log4j:log4j-api:2.11.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.apache.logging.log4j:log4j-core:2.11.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecrell:terminalconsoleappender:1.2.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.sf.jopt-simple:jopt-simple:5.0.4
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.spongepowered:mixin:0.8.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:nashorn-core-compat:15.1.1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.github.jponge:lzma-java:1.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.code.findbugs:jsr305:3.0.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.code.gson:gson:2.8.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.errorprone:error_prone_annotations:2.1.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.guava:guava:20.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.guava:guava:25.1-jre
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.j2objc:j2objc-annotations:1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.nothome:javaxdelta:2.0.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library commons-io:commons-io:2.4
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library de.oceanlabs.mcp:mcp_config:1.16.5-20210115.111550@zip
  Downloading library from https://files.minecraftforge.net/maven/de/oceanlabs/mcp/mcp_config/1.16.5-20210115.111550/mcp_config-1.16.5-20210115.111550.zip
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:144)
    at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:134)
    at net.minecraftforge.installer.DownloadUtils.downloadLibrary(DownloadUtils.java:123)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 27 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 33 more
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library de.siegmar:fastcsv:1.0.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.md-5:SpecialSource:1.8.3
  Downloading library from https://files.minecraftforge.net/maven/net/md-5/SpecialSource/1.8.3/SpecialSource-1.8.3.jar
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:144)
    at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:134)
    at net.minecraftforge.installer.DownloadUtils.downloadLibrary(DownloadUtils.java:123)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 27 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 33 more
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.md-5:SpecialSource:1.8.5
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:binarypatcher:1.0.12
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:forge:1.16.5-36.0.58:universal
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:installertools:1.1.11
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:jarsplitter:1.1.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.sf.jopt-simple:jopt-simple:4.9
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.sf.jopt-simple:jopt-simple:5.0.4
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.sf.opencsv:opencsv:2.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.checkerframework:checker-qual:2.0.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.codehaus.mojo:animal-sniffer-annotations:1.14
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-analysis:6.1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-commons:6.1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-tree:6.1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm:6.1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library trove:trove:1.0.2
  File exists: Checksum validated.
These libraries failed to download. Try again.

de.oceanlabs.mcp:mcp_config:1.16.5-20210115.111550@zip
net.md-5:SpecialSource:1.8.3
 

 

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Snigir Tree Puncher

Snigir

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  • Author
Posted

JVM info: Oracle Corporation - 1.8.0_281 - 25.281-b09
java.net.preferIPv4Stack=true
Found java version 1.8.0_281
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.InstallerPanel.updateFilePath(InstallerPanel.java:370)
    at net.minecraftforge.installer.InstallerPanel.<init>(InstallerPanel.java:351)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:169)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 25 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 31 more
Extracting json
Considering minecraft client jar
Downloading libraries
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:forge:1.16.5-36.0.58
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm:9.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-commons:9.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-tree:9.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-util:9.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-analysis:9.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library cpw.mods:modlauncher:8.0.9
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library cpw.mods:grossjava9hacks:1.3.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:accesstransformers:3.0.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.antlr:antlr4-runtime:4.9.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:eventbus:4.0.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:forgespi:3.2.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:coremods:4.0.6
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:unsafe:0.2.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.electronwill.night-config:core:3.6.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.electronwill.night-config:toml:3.6.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.jline:jline:3.12.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.apache.maven:maven-artifact:3.6.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.jodah:typetools:0.8.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.apache.logging.log4j:log4j-api:2.11.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.apache.logging.log4j:log4j-core:2.11.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecrell:terminalconsoleappender:1.2.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.sf.jopt-simple:jopt-simple:5.0.4
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.spongepowered:mixin:0.8.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:nashorn-core-compat:15.1.1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.github.jponge:lzma-java:1.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.code.findbugs:jsr305:3.0.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.code.gson:gson:2.8.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.errorprone:error_prone_annotations:2.1.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.guava:guava:20.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.guava:guava:25.1-jre
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.google.j2objc:j2objc-annotations:1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library com.nothome:javaxdelta:2.0.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library commons-io:commons-io:2.4
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library de.oceanlabs.mcp:mcp_config:1.16.5-20210115.111550@zip
  Downloading library from https://files.minecraftforge.net/maven/de/oceanlabs/mcp/mcp_config/1.16.5-20210115.111550/mcp_config-1.16.5-20210115.111550.zip
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:144)
    at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:134)
    at net.minecraftforge.installer.DownloadUtils.downloadLibrary(DownloadUtils.java:123)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 27 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 33 more
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library de.siegmar:fastcsv:1.0.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.md-5:SpecialSource:1.8.3
  Downloading library from https://files.minecraftforge.net/maven/net/md-5/SpecialSource/1.8.3/SpecialSource-1.8.3.jar
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:144)
    at net.minecraftforge.installer.DownloadUtils.download(DownloadUtils.java:134)
    at net.minecraftforge.installer.DownloadUtils.downloadLibrary(DownloadUtils.java:123)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 27 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 33 more
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.md-5:SpecialSource:1.8.5
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:binarypatcher:1.0.12
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:forge:1.16.5-36.0.58:universal
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:installertools:1.1.11
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.minecraftforge:jarsplitter:1.1.2
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.sf.jopt-simple:jopt-simple:4.9
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.sf.jopt-simple:jopt-simple:5.0.4
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library net.sf.opencsv:opencsv:2.3
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.checkerframework:checker-qual:2.0.0
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.codehaus.mojo:animal-sniffer-annotations:1.14
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-analysis:6.1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-commons:6.1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm-tree:6.1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library org.ow2.asm:asm:6.1.1
  File exists: Checksum validated.
javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.ssl.Alert.createSSLException(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.TransportContext.fatal(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(Unknown Source)
    at sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(Unknown Source)
    at sun.security.ssl.SSLHandshake.consume(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.HandshakeContext.dispatch(Unknown Source)
    at sun.security.ssl.TransportContext.dispatch(Unknown Source)
    at sun.security.ssl.SSLTransport.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.decode(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.readHandshakeRecord(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
    at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
    at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at java.net.HttpURLConnection.getResponseCode(Unknown Source)
    at sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(Unknown Source)
    at net.minecraftforge.installer.DownloadUtils.getConnection(DownloadUtils.java:203)
    at net.minecraftforge.installer.DownloadUtils.downloadMirrors(DownloadUtils.java:253)
    at net.minecraftforge.installer.json.Install.getMirror(Install.java:116)
    at net.minecraftforge.installer.actions.Action.downloadLibraries(Action.java:79)
    at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:108)
    at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:428)
    at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:170)
    at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:143)
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
    at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
    at sun.security.validator.Validator.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
    at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
    ... 26 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
    at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
    at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
    at java.security.cert.CertPathBuilder.build(Unknown Source)
    ... 32 more
Considering library trove:trove:1.0.2
  File exists: Checksum validated.
These libraries failed to download. Try again.

de.oceanlabs.mcp:mcp_config:1.16.5-20210115.111550@zip
net.md-5:SpecialSource:1.8.3
 

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