Code Workspace Classpath is corrupted after restart

[clemenswasser]

1. When I open a code-workspace with a clean Java Language Server Workspace everything works.
2. Once I restart VSCode and open any file, I get the following warning SomeJavaClass.java is not on the classpath of project workspacename+some_random_hash, only syntax errors are reported
3. When I execute Java: Clean Java Language Server Workspace we are back at 1.

Environment

• Operating System: Windows 10
• JDK version: 16.0.1.9
• Visual Studio Code version: 1.56.1
• Java extension version: 0.79.1

Steps To Reproduce

1. Create a test.code-workspace file with the following contents:

   {
       "folders": [
           {
               "path": "test"
           }
       ]
   }
   

2. Create folder test
3. Create a file Test.java in that folder
4. Open the code-workspace with VSCode
5. Open test/Test.java in VSCode
6. Everything works
7. Execute Developer: Reload Window or restart VSCode
8. Open test/Test.java in VSCode
9. This Error appears and nothing works
10. Execute Java: Clean Java Language Server Workspace and restart VSCode
11. Everything works

Current Result

A restart of VSCode breaks the Java Language Server Workspace and Classpath

Expected Result

It shouldn't

Additional Informations

[rgrunber]

I thought this might be similar to eclipse-jdtls/eclipse.jdt.ls#1764, but I'm not able to reproduce this issue. @snjeza let me know if you have any luck here.

[clemenswasser]

I thought this might be similar to eclipse-jdtls/eclipse.jdt.ls#1764, but I'm not able to reproduce this issue. @snjeza let me know if you have any luck here.

I remember also experiencing the issue you linked.

[snjeza]

@clemenswasser could you try https://github.com/snjeza/vscode-test/raw/master/java-0.79.3.vsix

[clemenswasser]

I thought this might be similar to eclipse/eclipse.jdt.ls#1764, but I'm not able to reproduce this issue. @snjeza let me know if you have any luck here.

I have now reinstalled VSCode (including deleting configuration and cache) and am still able to reproduce this.
@snjeza Does this build that you posted contain a fix? Or why should I test it?

I have to add something:
I was previously using the Java Extension Pack and can still reproduce it using only Language Support for Java(TM) by Red Hat (redhat.java) and Project Manager for Java (vscjava.vscode-java-dependency).

[snjeza]

Does this build that you posted contain a fix?

@clemenswasser Yes, it includes eclipse-jdtls/eclipse.jdt.ls#1766

[snjeza]

I was previously using the Java Extension Pack and can still reproduce it using only Language Support for Java(TM) by Red Hat (redhat.java) and Project Manager for Java (vscjava.vscode-java-dependency).

I can reproduce the issue with VS Code 0.79.1, but can't with https://github.com/snjeza/vscode-test/raw/master/java-0.79.3.vsix

[clemenswasser]

I have done some further investigations:
With the redhat.java extension standalone I cannot reproduce this.
Once I add any of the following extensions it does reproduce:

• vscjava.vscode-java-test (+ vscjava.vscode-java-debug this is a dependency of the Test Runner extension)
• vscjava.vscode-maven
• vscjava.vscode-java-dependency

It is really weird. I can only reproduce it when other extensions (which are part of the Java Extension Pack) are activated too.

[snjeza]

It is really weird. I can only reproduce it when other extensions (which are part of the Java Extension Pack) are activated too.

@clemenswasser Did you try https://github.com/snjeza/vscode-test/raw/master/java-0.79.3.vsix

[clemenswasser]

It is really weird. I can only reproduce it when other extensions (which are part of the Java Extension Pack) are activated too.

@clemenswasser Did you try https://github.com/snjeza/vscode-test/raw/master/java-0.79.3.vsix

Sorry for not trying this directly. This solves the issue for me. Thank you very much 🥳
When will version 0.79.3 be released?

[snjeza]

@clemenswasser Could you try https://github.com/snjeza/vscode-test/raw/master/java-0.79.4.vsix ?

[clemenswasser]

@clemenswasser Could you try https://github.com/snjeza/vscode-test/raw/master/java-0.79.4.vsix ?

This does also solve the issue for me.

[jdneo]

This should be fixed by eclipse-jdtls/eclipse.jdt.ls#1767 I guess. @snjeza @rgrunber

[rgrunber]

Yes, the change appears to resolve the issue. Cleaning the language server workspace, or reloading the window continue to work as well with the snippet provided.

This will be fixed in 0.79.2, which we expect to have out early next week. Feel free to re-open the issue though if the problem does persist.