Vscode-java-debug: java.lang.ClassNotFoundException

[jadelike-wine]

I can run my code in cmd . But my code can't run in vscode.
error: java.lang.ClassNotFoundException

PS C:\Users\10156\vscodeTest> cd 'c:\Users\10156\vscodeTest'; & 'C:\Users\10156.vscode\extensions\vscjava.vscode-java-debug-0.22.0\scripts\launcher.bat' 'C:\Program Files\Java\jdk-12.0.2\bin\java' '--enable-preview' '-Dfile.encoding=UTF-8' '-cp' 'C:\Users\10156AppData\Roaming\Code\User\workspaceStorage\64ad1d34ecc58c3f8dcf9119a054a187\redhat.java\jdt_wsTest_dff30b5c\bin' 'test'
错误: 找不到或无法加载主类 test
原因: java.lang.ClassNotFoundException: test

[testforstephen]

Could you share the log to us?
F1 -> "Java: Open Java language server log file"

[jadelike-wine]

Could you share the log to us?
F1 -> "Java: Open Java language server log file"

.log

[testforstephen]

!MESSAGE Error occured while building workspace. Details:
message: Preview features enabled at an invalid source release level 12, preview can be enabled only at source level 13; code: 2098258; resource: C:/Users/10156/vscode/Test/t.java;
message: Preview features enabled at an invalid source release level 12, preview can be enabled only at source level 13; code: 2098258; resource: C:/Users/10156/vscode/Test/test.java;

This is a known issue redhat-developer/vscode-java#1086, which is already fixed in the Language Support for Java(TM) by Red Hat extension 0.51.0 release.

Could you update the Java extension to latest version and try again?

[jadelike-wine]

!MESSAGE Error occured while building workspace. Details:
message: Preview features enabled at an invalid source release level 12, preview can be enabled only at source level 13; code: 2098258; resource: C:/Users/10156/vscode/Test/t.java;
message: Preview features enabled at an invalid source release level 12, preview can be enabled only at source level 13; code: 2098258; resource: C:/Users/10156/vscode/Test/test.java;

This is a known issue redhat-developer/vscode-java#1086, which is already fixed in the Language Support for Java(TM) by Red Hat extension 0.51.0 release.

Could you update the Java extension to latest version and try again?

Is this in photo? I have been the latest version.But the problem still exists

[testforstephen]

Yes, it's the latest version. Could you try F1 -> Java: clean the Java language server workspace?

[jadelike-wine]

Yes, it's the latest version. Could you try F1 -> Java: clean the Java language server workspace?

The problem is solved.I am gratitude to you for helping me.

[wiazur]

Yes, it's the latest version. Could you try F1 -> Java: clean the Java language server workspace?

I am having the same problem, and I also have the v0.51.0 version. I don't know how to do this command F1 -> Java: clean the Java language server workspace could you elaborate?

[testforstephen]

@wiazur Try the following steps:

1. Open VS Code Command Palette... via shortcut key F1 (or Ctrl + Shift + P)
2. Execute command Java: clean the Java language server workspace

[vartdalen]

I am facing this problem.

I can build .war file with maven and run it successfully.
I can also debug the project in IntelliJ.

But in VSCode, I get NoClassDefFoundError.
I have tried the fixes mentioned above, but they did not help.

Java server log
.log

VSCode debug log
vscode-debug-log.txt

Project .war log
war-log.txt

Project can be cloned from https://github.com/image-store-org/image-store-sql

[Shaz-L]

Same problem here

[samochod23]

yes ,is naw no my conto is dasen"tsynchronised

[YukiEmeralis]

I think this problem has reared its head again. Same issue down here, VSCode version 1.55, language support version 0.77.0, JDK version 15. Cleaning the language server workspace doesn't fix it.

[sage-blue]

I think this problem has reared its head again. Same issue down here, VSCode version 1.55, language support version 0.77.0, JDK version 15. Cleaning the language server workspace doesn't fix it.

im having the same issue.

[gaurav0116]

Yes, it's the latest version. Could you try F1 -> Java: clean the Java language server workspace?

this is working

[SinhaAkshat]

Yes, it's the latest version. Could you try F1 -> Java: clean the Java language server workspace?

could

@wiazur Try the following steps:

1. Open VS Code Command Palette... via shortcut key F1 (or Ctrl + Shift + P)
2. Execute command Java: clean the Java language server workspace

Could you elaborate on why is this error happening ??