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able to run :decompileMC with less than 3G?


its_meow
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I'm running a raspberry pi on raspbian (debian), which only has 1G of RAM. I have changed defaults of RAM usage for gradle and JVM itself to 800M and everything works up until it reaches :decompileMC, when it then says it can't allocate the heap space of 3G, which had supposedly changed to 800M. For some reason decompileMC insists on using 3G. Is there a way around this? I've been trying to setupDecompWorkspace all night and it's really annoying.

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It insists on using 3 gigs because Minecraft is just a big codebase. It won't be able to decompile with less memory. If you insist on programming on a Raspberry Pi (it really is not the computer to be programming on...) you have to use setupDevWorkspace, which will not decompile Minecraft.

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I explained where the 3 GB comes from and how you can stop it here.

 

Note that it's very unlikely you'll be able to successfully decompile Minecraft with with 1 GB of RAM, even though the linked post will let you try it.

Please don't PM me to ask for help. Asking your question in a public thread preserves it for people who are having the same problem in the future.

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Considering library net.minecraftforge:forgespi:4.0.10   File exists: Checksum validated. Considering library net.minecraftforge:coremods:5.0.1   File exists: Checksum validated. Considering library cpw.mods:modlauncher:9.0.7   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:3.6.3   File exists: Checksum validated. Considering library org.apache.commons:commons-lang3:3.12.0   File exists: Checksum validated. Considering library net.jodah:typetools:0.8.3   File exists: Checksum validated. Considering library org.apache.logging.log4j:log4j-api:2.14.1   File exists: Checksum validated. 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Created Temporary Directory: C:\Users\ACER\AppData\Local\Temp\forge_installer700304410901520145   Extracting: /data/client.lzma Building Processors ===============================================================================   MainClass: net.minecraftforge.installertools.ConsoleTool   Classpath:     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\net\minecraftforge\installertools\1.2.10\installertools-1.2.10.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\net\md-5\SpecialSource\1.10.0\SpecialSource-1.10.0.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\5.0.4\jopt-simple-5.0.4.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.8.7\gson-2.8.7.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\de\siegmar\fastcsv\2.0.0\fastcsv-2.0.0.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\net\minecraftforge\srgutils\0.4.3\srgutils-0.4.3.jar     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C:\Users\ACER\AppData\Roaming\.minecraft\libraries\de\oceanlabs\mcp\mcp_config\1.18-20211130.085255\mcp_config-1.18-20211130.085255-mappings.txt Key:    mappings Extracting: config/joined.tsrg ===============================================================================   MainClass: net.minecraftforge.installertools.ConsoleTool   Classpath:     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\net\minecraftforge\installertools\1.2.10\installertools-1.2.10.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\net\md-5\SpecialSource\1.10.0\SpecialSource-1.10.0.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\5.0.4\jopt-simple-5.0.4.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.8.7\gson-2.8.7.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\de\siegmar\fastcsv\2.0.0\fastcsv-2.0.0.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\net\minecraftforge\srgutils\0.4.3\srgutils-0.4.3.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-commons\9.1\asm-commons-9.1.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\20.0\guava-20.0.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\com\opencsv\opencsv\4.4\opencsv-4.4.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-analysis\9.1\asm-analysis-9.1.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-tree\9.1\asm-tree-9.1.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm\9.1\asm-9.1.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-text\1.3\commons-text-1.3.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.8.1\commons-lang3-3.8.1.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\commons-beanutils\commons-beanutils\1.9.3\commons-beanutils-1.9.3.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-collections4\4.2\commons-collections4-4.2.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.2\commons-logging-1.2.jar     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\commons-collections\commons-collections\3.2.2\commons-collections-3.2.2.jar   Args: --task, DOWNLOAD_MOJMAPS, --version, 1.18, --side, client, --output, C:\Users\ACER\AppData\Roaming\.minecraft\libraries\net\minecraft\client\1.18-20211130.085255\client-1.18-20211130.085255-mappings.txt Task: DOWNLOAD_MOJMAPS MC Version: 1.18 Side:       client Output:     C:\Users\ACER\AppData\Roaming\.minecraft\libraries\net\minecraft\client\1.18-20211130.085255\client-1.18-20211130.085255-mappings.txt 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 sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)     at java.net.URL.openStream(Unknown Source)     at net.minecraftforge.installertools.DownloadMojmaps.process(DownloadMojmaps.java:65)     at net.minecraftforge.installertools.ConsoleTool.main(ConsoleTool.java:55)     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)     at java.lang.reflect.Method.invoke(Unknown Source)     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 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)     ... 29 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)     ... 35 more Failed to run processor: 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 See log for more details.     see
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