Cannot invoke o.e.j.i.c.u.JrtFileSystem.walkModuleImage()

[TBug001]

Type: Bug

I'm not much of a GitHub user, so let me briefly describe my problem.

I don't know since when I use VScode to open Java files, I will be prompted to use JDK17, but at this time, I can still use DEBUG. After a period of time, when I use it again, the DEBUG will not be able to use, and the following error will be displayed. I guess it is the problem of the plug-in "Debugger for Java", but I can't solve it after lowering the version.

Cannot invoke "org.eclipse.jdt.internal.compiler.util.JrtFileSystem.walkModuleImage(org.eclipse.jdt.internal.compiler.util.JRTUtil$JrtFileVisitor, int)" because the return value of "org.eclipse.jdt.internal.compiler.util.JRTUtil.getJrtSystem(java.io.File, String)" is null

Extension version: 0.44.0
VS Code version: Code 1.71.0 (784b0177c56c607789f9638da7b6bf3230d47a8c, 2022-09-01T07:36:10.600Z)
OS version: Windows_NT x64 10.0.19044
Modes:
Sandboxed: No

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-8300H CPU @ 2.30GHz (8 x 2304)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_renderer: enabled_on video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off
Load (avg)	undefined
Memory (System)	15.86GB (7.54GB free)
Process Argv	--crash-reporter-id d984063b-117c-401c-9522-5dc0346638b3
Screen Reader	no
VM	50%

A/B Experiments

vsliv368:30146709
vsreu685:30147344
python383:30185418
vspor879:30202332
vspor708:30202333
vspor363:30204092
vslsvsres303:30308271
pythonvspyl392:30443607
vserr242:30382549
pythontb:30283811
vsjup518:30340749
pythonptprofiler:30281270
vshan820:30294714
vstes263:30335439
vscoreces:30445986
pythondataviewer:30285071
vscod805cf:30301675
binariesv615:30325510
bridge0708:30335490
bridge0723:30353136
cmake_vspar411:30557514
vsaa593:30376534
pythonvs932:30410667
cppdebug:30492333
vscaat:30438848
pylanb8912:30545647
vsclangdf:30486550
c4g48928:30535728
hb751961:30553087
dsvsc012:30540252
azure-dev_surveyone:30548225
2144e591:30553903

[amwestrich]

Having the same issue but on Linux with openjdk 17.

[amwestrich]

The version from two months ago, v1.8.2022062904 doesn't have the issue.

[testforstephen]

TBug001 amwestrich Could you please provide more details (e.g. the full exception log) about this error? It's better to provide a sample project for us to reproduce the error.

[bib1963]

I see this as well. It needs nothing special, just create a new java project and the error will appear. The only source file is the default App.java which is automatically created.This is with Linux with java-11-openjdk-devel-11.0.16.0.
error.log
j1.zip

[weberhofer]

I see exactly the same issue in the new 2022-09 release of eclipse using openSUSE Leap and OpenJDK Runtime Environment 17.0.4+8 as soon as one of my Java projects start building.

[jadavis42]

amwestrich is correct. I downgraded Language Support for Java(TM) by Red Hat to older version v1.8.2022062904 and the problem goes away. I'm using VS Code on Windows 10 with jdk 17

[TBug001]

Jinbo Wang (@testforstephen)
log.log
client.log

[TBug001]

Here is my configuration file. Can you help me see what's wrong? Now there is a problem with VScode. I need to use IDEA to write an algorithm problem, which is very troublesome

`{
"code-runner.runInTerminal": true,
"code-runner.ignoreSelection": true,
"editor.suggestSelection": "first",
"vsintellicode.modify.editor.suggestSelection": "automaticallyOverrodeDefaultValue",
"files.exclude": {
"/.classpath": true,
"/.project": true,
"/.settings": true,
"/.factorypath": true
},
"java.jdt.ls.vmargs": "-XX:+UseParallelGC -XX:GCTimeRatio=4 -XX:AdaptiveSizePolicyWeight=90 -Dsun.zip.disableMemoryMapping=true -Xmx1G -Xms100m",
"open-in-browser.default": "{"Open-in-browser: Default":"Chrome"}",
"c-cpp-compile-run.run-in-external-terminal": true,
"eslint.runtime": "",
"files.autoGuessEncoding": true,
"editor.unicodeHighlight.allowedCharacters": {
"：": true,
"！": true,
"α": true
},
//"C_Cpp.updateChannel": "Insiders",
"window.zoomLevel": 1,
"editor.unicodeHighlight.allowedLocales": {
"zh-hans": true
},
"update.enableWindowsBackgroundUpdates": false,
"update.mode": "manual",
"[java]": {
"editor.defaultFormatter": "redhat.java"
},
"java.jdt.ls.java.home":"d:\JAVA",
"workbench.editorAssociations": {
".class": "default"
},
"files.associations": {
".class": "bat",
"*.java": "java"
},
"workbench.colorTheme": "Visual Studio Dark",
"maven.terminal.useJavaHome": true,
"java.configuration.runtimes": [

{
"name":"JavaSE-13",
"path":"d:\JAVA",
"sources":"D:\JAVA\lib\src.zip",
"default":true
}
],
}`

[testforstephen]

!ENTRY org.eclipse.jdt.ls.core 4 0 2022-09-08 11:16:16.741
!MESSAGE Initialization failed 
!STACK 0
java.lang.NullPointerException: Cannot invoke "org.eclipse.jdt.internal.compiler.util.JrtFileSystem.walkModuleImage(org.eclipse.jdt.internal.compiler.util.JRTUtil$JrtFileVisitor, int)" because the return value of "org.eclipse.jdt.internal.compiler.util.JRTUtil.getJrtSystem(java.io.File, String)" is null
	at org.eclipse.jdt.internal.compiler.util.JRTUtil.walkModuleImage(JRTUtil.java:242)
	at org.eclipse.jdt.internal.core.JavaProject.loadModulesInJimage(JavaProject.java:983)
	at org.eclipse.jdt.internal.core.JavaProject.computePackageFragmentRoots(JavaProject.java:782)
	at org.eclipse.jdt.internal.core.JavaProject.computePackageFragmentRoots(JavaProject.java:1103)
	at org.eclipse.jdt.internal.core.JavaProject.computePackageFragmentRoots(JavaProject.java:1048)
	at org.eclipse.jdt.internal.core.JavaProject.computePackageFragmentRoots(JavaProject.java:1025)
	at org.eclipse.jdt.internal.core.JavaProject.buildStructure(JavaProject.java:538)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:266)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:597)
	at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:328)
	at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:314)
	at org.eclipse.jdt.internal.core.JavaElement.getChildren(JavaElement.java:269)
	at org.eclipse.jdt.internal.core.JavaProject.getPackageFragmentRoots(JavaProject.java:2384)
	at org.eclipse.jdt.internal.core.JavaProject.getPackageFragments(JavaProject.java:2408)
	at org.eclipse.jdt.ls.core.internal.managers.ProjectsManager.cleanupResources(ProjectsManager.java:278)
	at org.eclipse.jdt.ls.core.internal.managers.ProjectsManager.initializeProjects(ProjectsManager.java:107)
	at org.eclipse.jdt.ls.core.internal.handlers.InitHandler$1.runInWorkspace(InitHandler.java:244)
	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:43)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)

The NPE above is the reason for the failure, it occurred when Java extension tried to parse your JDK info such as jrt-fs.jar, release. This issue seems related with the JDK installation.

Could you provide more information about the JDK installation you use?

• What JDK distribution do you use? How do you install it?
• If you're using Linux or macOS, check if your JDK related settings (e.g. java.home, java.jdt.ls.java.home, java.configuration.runtimes) point to any JDK location with symlink.

// TBug001 amwestrich bib1963 Johannes Weberhofer (@weberhofer) jadavis42

[TBug001]

Jinbo Wang (@testforstephen) Windows10 JDK13

[testforstephen]

Usually, this folder should include a release file, which contains the JDK vendor info.

TBug001 Could you check if release file is missing in your JDK installation?