I just recently found this out when I caught my Surface pro (2017) up software wise.

BUG:  (atleast in intellij)  if your systems default jdk is Oracle JDK 16.x(openJDK 16) & your project is set to just Amazon Corretto 16.. that even when it is 'downloaded & installed'    build client will completely & utterly glitch out.

Even if the project is rebuilt & re-indexed afterwords.

 

I am not entirely sure this is a purely IDE issue, but would bring it up & unsure if it has been brought up before.

--------------

The java builds, but once executed....  it produces an error code that results in files having 'null values'.

To be clear This is produced (For me) when I have openJDK 16 installed, and my product gets built using Corretto 16  

-- That it will work (once I set the project JDK to openJDK 16, & delete the build folder contents, before attempting to rerun runClient.. then works as expected)

I saw errors like this on my attempts on my surface pro (this is gotten from my desktop just now), but I also saw others where files (within the build folder) where utterly full of 'null' characters. 
= Can not reproduce that on this system, atm.

*edit - the prepare client output just in case. 

Quote

2:24:16 AM: Executing task ':prepareRunClient'...

> Configure project :
Java: 16.0.2 JVM: 16.0.2+7(Amazon.com Inc.) Arch: amd64
WARNING: This project is configured to use the official obfuscation mappings provided by Mojang. These mapping fall under their associated license, you should be fully aware of this license. For the latest license text, refer below, or the reference copy here: https://github.com/MinecraftForge/MCPConfig/blob/master/Mojang.md, You can hide this warning by running the `hideOfficialWarningUntilChanged` task
WARNING: (c) 2020 Microsoft Corporation. These mappings are provided "as-is" and you bear the risk of using them. You may copy and use the mappings for development purposes, but you may not redistribute the mappings complete and unmodified. Microsoft makes no warranties, express or implied, with respect to the mappings provided here.  Use and modification of this document or the source code (in any form) of Minecraft: Java Edition is governed by the Minecraft End User License Agreement available at https://account.mojang.com/documents/minecraft_eula.

> Task :compileJava UP-TO-DATE
> Task :processResources UP-TO-DATE
> Task :classes UP-TO-DATE
> Task :downloadMcpConfig
> Task :extractSrg UP-TO-DATE
> Task :createSrgToMcp UP-TO-DATE
> Task :downloadMCMeta UP-TO-DATE
> Task :downloadAssets UP-TO-DATE
> Task :extractNatives UP-TO-DATE
> Task :makeSrcDirs
> Task :prepareRuns
> Task :prepareRunClient

Deprecated Gradle features were used in this build, making it incompatible with Gradle 8.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

See https://docs.gradle.org/7.2-20210702220150+0000/userguide/command_line_interface.html#sec:command_line_warnings

BUILD SUCCESSFUL in 2s
9 actionable tasks: 2 executed, 7 up-to-date
2:24:19 AM: Task execution finished ':prepareRunClient'.
 

C:\Users\kphoe\.jdks\corretto-16.0.2\bin\java.exe -Dforge.logging.console.level=debug -Dforge.logging.markers=REGISTRIES -DlegacyClassPath.file=C:\Users\kphoe\OneDrive\MineCraft\Mods\1.17.1\build\classpath\runClient_minecraftClasspath.txt -DignoreList=bootstraplauncher,securejarhandler,asm-commons,asm-util,asm-analysis,asm-tree,asm,client-extra,fmlcore,javafmllanguage,mclanguage,forge- -DnativesDirectory=C:\Users\kphoe\OneDrive\MineCraft\Mods\1.17.1\build\natives -DmergeModules=jna-5.8.0.jar,jna-platform-58.0.jar,java-objc-bridge-1.0.0.jar -p C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\cpw.mods\bootstraplauncher\0.1.16\f1845ce8d483586f474620631621e0df30e1ccf\bootstraplauncher-0.1.16.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\cpw.mods\securejarhandler\0.9.46\63b520c4dad090d67dbe040bea47567534fe2722\securejarhandler-0.9.46.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.ow2.asm\asm-commons\9.1\8b971b182eb5cf100b9e8d4119152d83e00e0fdd\asm-commons-9.1.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.ow2.asm\asm-util\9.1\36464a45d871779f3383a8a9aba2b26562a86729\asm-util-9.1.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.ow2.asm\asm-analysis\9.1\4f61b83b81d8b659958f4bcc48907e93ecea55a0\asm-analysis-9.1.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.ow2.asm\asm-tree\9.1\c333f2a855069cb8eb17a40a3eb8b1b67755d0eb\asm-tree-9.1.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.ow2.asm\asm\9.1\a99500cf6eea30535eeac6be73899d048f8d12a8\asm-9.1.jar --add-modules ALL-MODULE-PATH --add-opens java.base/java.util.jar=cpw.mods.securejarhandler --add-exports java.base/sun.security.util=cpw.mods.securejarhandler --add-exports jdk.naming.dns/com.sun.jndi.dns=java.naming -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump "-Dos.name=Windows 10" -Dos.version=10.0 "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2021.2\lib\idea_rt.jar=55561:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2021.2\bin" -Dfile.encoding=UTF-8 -classpath 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eech-1.11.3.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.antlr\antlr4\4.9.1\e92af8ab33e428461927b484e90bb155a4f3a052\antlr4-4.9.1.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.codehaus.plexus\plexus-utils\3.2.1\13b015768e0d04849d2794e4c47eb02d01a0de32\plexus-utils-3.2.1.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.antlr\ST4\4.3\92f2c1ad8d84abcbeead6cf7f2c53a04166293c2\ST4-4.3.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.antlr\antlr-runtime\3.5.2\cd9cd41361c155f3af0f653009dcecb08d8b4afd\antlr-runtime-3.5.2.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.abego.treelayout\org.abego.treelayout.core\1.0.3\457216e8e6578099ae63667bb1e4439235892028\org.abego.treelayout.core-1.0.3.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.glassfish\javax.json\1.0.4\3178f73569fd7a1e5ffc464e680f7a8cc784b85a\javax.json-1.0.4.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\cpw.mods\securejarhandler\0.9.48\aae44568f7e798c057e0ef0a7f099bc41336f4b9\securejarhandler-0.9.48.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.lwjgl\lwjgl-jemalloc\3.2.2\338b25b99da3ba5f441f6492f2ce2a9c608860ed\lwjgl-jemalloc-3.2.2-natives-windows.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.lwjgl\lwjgl-openal\3.2.2\ec20a7d42a2438528fca87e60b1705f1e2339ddb\lwjgl-openal-3.2.2-natives-windows.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.lwjgl\lwjgl-opengl\3.2.2\d8dcdc91066cae2d2d8279cb4a9f9f05d9525826\lwjgl-opengl-3.2.2-natives-windows.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.lwjgl\lwjgl-glfw\3.2.2\dc6826d636bf796b33a49038c354210e661bfc17\lwjgl-glfw-3.2.2-natives-windows.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.lwjgl\lwjgl-stb\3.2.2\811f705cbb29e8ae8d60bdf8fdd38c0c123ad3ef\lwjgl-stb-3.2.2-natives-windows.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.lwjgl\lwjgl-tinyfd\3.2.2\e9115958773644e863332a6a06488d26f9e1fc9f\lwjgl-tinyfd-3.2.2-natives-windows.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\org.lwjgl\lwjgl\3.2.2\5359f3aa50d36352815fc662ea73e1c00d22170\lwjgl-3.2.2-natives-windows.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\com.mojang\text2speech\1.11.3\c0b242c0091be5acbf303263c7eeeaedd70544c7\text2speech-1.11.3-natives-windows.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\net.minecraftforge\srgutils\0.4.3\84aecb8fc78bd0dd7299bd9963ac9eb83bd00aad\srgutils-0.4.3.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\net.java.jinput\jinput-platform\2.0.5\7ff832a6eb9ab6a767f1ade2b548092d0fa64795\jinput-platform-2.0.5-natives-linux.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\net.java.jinput\jinput-platform\2.0.5\53f9c919f34d2ca9de8c51fc4e1e8282029a9232\jinput-platform-2.0.5-natives-osx.jar;C:\Users\kphoe\.gradle\caches\modules-2\files-2.1\net.java.jinput\jinput-platform\2.0.5\385ee093e01f587f30ee1c8a2ee7d408fd732e16\jinput-platform-2.0.5-natives-windows.jar cpw.mods.bootstraplauncher.BootstrapLauncher --launchTarget forgeclientuserdev --version MOD_DEV --assetIndex 1.17 --assetsDir C:\Users\kphoe\.gradle\caches\forge_gradle\assets --gameDir . --fml.forgeVersion 37.0.18 --fml.mcVersion 1.17.1 --fml.forgeGroup net.minecraftforge --fml.mcpVersion 20210706.113038
Exception in thread "main" java.lang.IllegalArgumentException: : Invalid module name: '' is not a Java identifier
	at java.base/jdk.internal.module.Checks.requireModuleName(Checks.java:59)
	at java.base/java.lang.module.ModuleDescriptor$Builder.<init>(ModuleDescriptor.java:1523)
	at java.base/java.lang.module.ModuleDescriptor.newAutomaticModule(ModuleDescriptor.java:2405)
	at [email protected]/cpw.mods.jarhandling.impl.SimpleJarMetadata.descriptor(SimpleJarMetadata.java:13)
	at [email protected]/cpw.mods.jarhandling.impl.Jar.computeDescriptor(Jar.java:50)
	at [email protected]/cpw.mods.cl.JarModuleFinder$JarModuleReference.<init>(JarModuleFinder.java:50)
	at [email protected]/cpw.mods.cl.JarModuleFinder.lambda$new$0(JarModuleFinder.java:28)
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
	at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
	at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682)
	at [email protected]/cpw.mods.cl.JarModuleFinder.<init>(JarModuleFinder.java:29)
	at [email protected]/cpw.mods.cl.JarModuleFinder.of(JarModuleFinder.java:43)
	at [email protected]/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:80)

Process finished with exit code 1

 

runClient_minecraftClasspath.txt

Edited August 11, 20214 yr by DePhoegon

It wasn't intended.  My surface pro was setup different for the past.     I Just thought I would bring it up.  I would never think to swap JDKs without 'rebuilding' the project & saving the code before hand.

It's .... figitty as hell, but workable.   Honestly it's a bit interesting if I am to be honest about it.