Completely Uninstalled java,and minecraft too and installed again. Currently have java 16 SE downloaded.,latest version. Tried it before with 17 too. here is what the log at the forge installer jar file shows -
JVM info: Oracle Corporation - 16.0.2 - 16.0.2+7-67
java.net.preferIPv4Stack=true
Found java version 16.0.2
Extracting json
Considering minecraft client jar
Downloading libraries
Found 0 additional library directories
Considering library cpw.mods:securejarhandler:2.1.4
File exists: Checksum validated.
Considering library org.ow2.asm:asm:9.3
File exists: Checksum validated.
Considering library org.ow2.asm:asm-commons:9.3
File exists: Checksum validated.
Considering library org.ow2.asm:asm-tree:9.3
File exists: Checksum validated.
Considering library org.ow2.asm:asm-util:9.3
File exists: Checksum validated.
Considering library org.ow2.asm:asm-analysis:9.3
File exists: Checksum validated.
Considering library net.minecraftforge:accesstransformers:8.0.4
File exists: Checksum validated.
Considering library org.antlr:antlr4-runtime:4.9.1
File exists: Checksum validated.
Considering library net.minecraftforge:eventbus:6.0.3
File exists: Checksum validated.
Considering library net.minecraftforge:forgespi:6.0.0
File exists: Checksum validated.
Considering library net.minecraftforge:coremods:5.0.1
File exists: Checksum validated.
Considering library cpw.mods:modlauncher:10.0.8
File exists: Checksum validated.
Considering library net.minecraftforge:unsafe:0.2.0
File exists: Checksum validated.
Considering library com.electronwill.night-config:core:3.6.4
File exists: Checksum validated.
Considering library com.electronwill.night-config:toml:3.6.4
File exists: Checksum validated.
Considering library org.apache.maven:maven-artifact:3.8.5
File exists: Checksum validated.
Considering library net.jodah:typetools:0.8.3
File exists: Checksum validated.
Considering library net.minecrell:terminalconsoleappender:1.2.0
File exists: Checksum validated.
Considering library org.jline:jline-reader:3.12.1
File exists: Checksum validated.
Considering library org.jline:jline-terminal:3.12.1
File exists: Checksum validated.
Considering library org.spongepowered:mixin:0.8.5
File exists: Checksum validated.
Considering library org.openjdk.nashorn:nashorn-core:15.3
File exists: Checksum validated.
Considering library net.minecraftforge:JarJarSelector:0.3.16
File exists: Checksum validated.
Considering library net.minecraftforge:JarJarMetadata:0.3.16
File exists: Checksum validated.
Considering library cpw.mods:bootstraplauncher:1.1.2
File exists: Checksum validated.
Considering library net.minecraftforge:JarJarFileSystems:0.3.16
File exists: Checksum validated.
Considering library net.minecraftforge:fmlloader:1.19.2-43.1.1
File exists: Checksum validated.
Considering library com.github.jponge:lzma-java:1.3
File exists: Checksum validated.
Considering library com.google.code.findbugs:jsr305:3.0.2
File exists: Checksum validated.
Considering library com.google.code.gson:gson:2.8.7
File exists: Checksum validated.
Considering library com.google.errorprone:error_prone_annotations:2.1.3
File exists: Checksum validated.
Considering library com.google.guava:guava:20.0
File exists: Checksum validated.
Considering library com.google.guava:guava:25.1-jre
File exists: Checksum validated.
Considering library com.google.j2objc:j2objc-annotations:1.1
File exists: Checksum validated.
Considering library com.nothome:javaxdelta:2.0.1
File exists: Checksum validated.
Considering library com.opencsv:opencsv:4.4
File exists: Checksum validated.
Considering library commons-beanutils:commons-beanutils:1.9.3
File exists: Checksum validated.
Considering library commons-collections:commons-collections:3.2.2
File exists: Checksum validated.
Considering library commons-io:commons-io:2.4
File exists: Checksum validated.
Considering library commons-logging:commons-logging:1.2
File exists: Checksum validated.
Considering library de.oceanlabs.mcp:mcp_config:1.19.2-20220805.130853@zip
File exists: Checksum validated.
Considering library de.siegmar:fastcsv:2.0.0
File exists: Checksum validated.
Considering library net.md-5:SpecialSource:1.11.0
File exists: Checksum validated.
Considering library net.minecraftforge:ForgeAutoRenamingTool:0.1.22:all
File exists: Checksum validated.
Considering library net.minecraftforge:binarypatcher:1.1.1
File exists: Checksum validated.
Considering library net.minecraftforge:fmlcore:1.19.2-43.1.1
File exists: Checksum validated.
Considering library net.minecraftforge:fmlloader:1.19.2-43.1.1
File exists: Checksum validated.
Considering library net.minecraftforge:forge:1.19.2-43.1.1:universal
File exists: Checksum validated.
Considering library net.minecraftforge:installertools:1.3.0
File exists: Checksum validated.
Considering library net.minecraftforge:jarsplitter:1.1.4
File exists: Checksum validated.
Considering library net.minecraftforge:javafmllanguage:1.19.2-43.1.1
File exists: Checksum validated.
Considering library net.minecraftforge:lowcodelanguage:1.19.2-43.1.1
File exists: Checksum validated.
Considering library net.minecraftforge:mclanguage:1.19.2-43.1.1
File exists: Checksum validated.
Considering library net.minecraftforge:srgutils:0.4.11
File exists: Checksum validated.
Considering library net.minecraftforge:srgutils:0.4.3
File exists: Checksum validated.
Considering library net.minecraftforge:srgutils:0.4.9
File exists: Checksum validated.
Considering library net.sf.jopt-simple:jopt-simple:5.0.4
File exists: Checksum validated.
Considering library net.sf.jopt-simple:jopt-simple:6.0-alpha-3
File exists: Checksum validated.
Considering library org.apache.commons:commons-collections4:4.2
File exists: Checksum validated.
Considering library org.apache.commons:commons-lang3:3.8.1
File exists: Checksum validated.
Considering library org.apache.commons:commons-text:1.3
File exists: Checksum validated.
Considering library org.checkerframework:checker-qual:2.0.0
File exists: Checksum validated.
Considering library org.codehaus.mojo:animal-sniffer-annotations:1.14
File exists: Checksum validated.
Considering library org.ow2.asm:asm-analysis:9.2
File exists: Checksum validated.
Considering library org.ow2.asm:asm-analysis:9.3
File exists: Checksum validated.
Considering library org.ow2.asm:asm-commons:9.2
File exists: Checksum validated.
Considering library org.ow2.asm:asm-commons:9.3
File exists: Checksum validated.
Considering library org.ow2.asm:asm-tree:9.2
File exists: Checksum validated.
Considering library org.ow2.asm:asm-tree:9.3
File exists: Checksum validated.
Considering library org.ow2.asm:asm:9.2
File exists: Checksum validated.
Considering library org.ow2.asm:asm:9.3
File exists: Checksum validated.
Considering library trove:trove:1.0.2
File exists: Checksum validated.
Created Temporary Directory: C:\Users\user\AppData\Local\Temp\forge_installer11243712277145317536
Extracting: /data/client.lzma
Building Processors
===============================================================================
MainClass: net.minecraftforge.installertools.ConsoleTool
Classpath:
C:\Users\user\AppData\Roaming\.minecraft\libraries\net\minecraftforge\installertools\1.3.0\installertools-1.3.0.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\net\md-5\SpecialSource\1.11.0\SpecialSource-1.11.0.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\5.0.4\jopt-simple-5.0.4.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.8.7\gson-2.8.7.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\de\siegmar\fastcsv\2.0.0\fastcsv-2.0.0.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\net\minecraftforge\srgutils\0.4.11\srgutils-0.4.11.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-commons\9.3\asm-commons-9.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\20.0\guava-20.0.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\com\opencsv\opencsv\4.4\opencsv-4.4.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-analysis\9.3\asm-analysis-9.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-tree\9.3\asm-tree-9.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm\9.3\asm-9.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-text\1.3\commons-text-1.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.8.1\commons-lang3-3.8.1.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\commons-beanutils\commons-beanutils\1.9.3\commons-beanutils-1.9.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-collections4\4.2\commons-collections4-4.2.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.2\commons-logging-1.2.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\commons-collections\commons-collections\3.2.2\commons-collections-3.2.2.jar
Args: --task, MCP_DATA, --input, C:\Users\user\AppData\Roaming\.minecraft\libraries\de\oceanlabs\mcp\mcp_config\1.19.2-20220805.130853\mcp_config-1.19.2-20220805.130853.zip, --output, C:\Users\user\AppData\Roaming\.minecraft\libraries\de\oceanlabs\mcp\mcp_config\1.19.2-20220805.130853\mcp_config-1.19.2-20220805.130853-mappings.txt, --key, mappings
Task: MCP_DATA
Input: C:\Users\user\AppData\Roaming\.minecraft\libraries\de\oceanlabs\mcp\mcp_config\1.19.2-20220805.130853\mcp_config-1.19.2-20220805.130853.zip
Output: C:\Users\user\AppData\Roaming\.minecraft\libraries\de\oceanlabs\mcp\mcp_config\1.19.2-20220805.130853\mcp_config-1.19.2-20220805.130853-mappings.txt
Key: mappings
Extracting: config/joined.tsrg
===============================================================================
MainClass: net.minecraftforge.installertools.ConsoleTool
Classpath:
C:\Users\user\AppData\Roaming\.minecraft\libraries\net\minecraftforge\installertools\1.3.0\installertools-1.3.0.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\net\md-5\SpecialSource\1.11.0\SpecialSource-1.11.0.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\5.0.4\jopt-simple-5.0.4.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.8.7\gson-2.8.7.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\de\siegmar\fastcsv\2.0.0\fastcsv-2.0.0.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\net\minecraftforge\srgutils\0.4.11\srgutils-0.4.11.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-commons\9.3\asm-commons-9.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\20.0\guava-20.0.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\com\opencsv\opencsv\4.4\opencsv-4.4.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-analysis\9.3\asm-analysis-9.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-tree\9.3\asm-tree-9.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm\9.3\asm-9.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-text\1.3\commons-text-1.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.8.1\commons-lang3-3.8.1.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\commons-beanutils\commons-beanutils\1.9.3\commons-beanutils-1.9.3.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-collections4\4.2\commons-collections4-4.2.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.2\commons-logging-1.2.jar
C:\Users\user\AppData\Roaming\.minecraft\libraries\commons-collections\commons-collections\3.2.2\commons-collections-3.2.2.jar
Args: --task, DOWNLOAD_MOJMAPS, --version, 1.19.2, --side, client, --output, C:\Users\user\AppData\Roaming\.minecraft\libraries\net\minecraft\client\1.19.2-20220805.130853\client-1.19.2-20220805.130853-mappings.txt
Task: DOWNLOAD_MOJMAPS
MC Version: 1.19.2
Side: client
Output: C:\Users\user\AppData\Roaming\.minecraft\libraries\net\minecraft\client\1.19.2-20220805.130853\client-1.19.2-20220805.130853-mappings.txt
javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:131)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:369)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:312)
at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:307)
at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:654)
at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.onCertificate(CertificateMessage.java:473)
at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.consume(CertificateMessage.java:369)
at java.base/sun.security.ssl.SSLHandshake.consume(SSLHandshake.java:396)
at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:480)
at java.base/sun.security.ssl.HandshakeContext.dispatch(HandshakeContext.java:458)
at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:199)
at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:172)
at java.base/sun.security.ssl.SSLSocketImpl.decode(SSLSocketImpl.java:1506)
at java.base/sun.security.ssl.SSLSocketImpl.readHandshakeRecord(SSLSocketImpl.java:1416)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:451)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:422)
at java.base/sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:574)
at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:183)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1653)
at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1577)
at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:224)
at java.base/java.net.URL.openStream(URL.java:1192)
at net.minecraftforge.installertools.DownloadMojmaps.process(DownloadMojmaps.java:65)
at net.minecraftforge.installertools.ConsoleTool.main(ConsoleTool.java:55)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:567)
at net.minecraftforge.installer.actions.PostProcessors.process(PostProcessors.java:226)
at net.minecraftforge.installer.actions.ClientInstall.run(ClientInstall.java:144)
at net.minecraftforge.installer.InstallerPanel.run(InstallerPanel.java:423)
at net.minecraftforge.installer.SimpleInstaller.launchGui(SimpleInstaller.java:175)
at net.minecraftforge.installer.SimpleInstaller.main(SimpleInstaller.java:147)
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 java.base/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:439)
at java.base/sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:306)
at java.base/sun.security.validator.Validator.validate(Validator.java:264)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231)
at java.base/sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:132)
at java.base/sun.security.ssl.CertificateMessage$T12CertificateConsumer.checkServerCerts(CertificateMessage.java:638)
... 28 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at java.base/sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
at java.base/sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
at java.base/java.security.cert.CertPathBuilder.build(CertPathBuilder.java:297)
at java.base/sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:434)
... 33 more
Failed to run processor: javax.net.ssl.SSLHandshakeException:PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
See log for more details.