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Run action hangs at "Resolving main class..." with no further response

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#1,658 1 comment 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
48/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Quiet
Tech stack
java, typescript
Domain
devtools

Research direction

Reproduce the Run-button hang in a VS Code Java project using JDK 1.8 on Windows/WSL2, then compare it with the same action under JDK 21. Start at the “Resolving main class...” step and verify that Run completes without freezing the IDE or requiring a window reload.

Written by the indexing model from the issue text.

Description

ai-triaged bug

When I click the Run button, a "Resolving main class..." popup appears but nothing happens afterward. Clicking Run again does not trigger the popup, and the IDE becomes completely unresponsive. The only workaround is to reload the window.

Crucial Clue:
This issue only occurs when the project uses JDK 1.8. When I switch the project which use JDK 21, the run action works perfectly.

VS Code version：1.130.0
OS: Windows/WSL2

Dominant language
TypeScript
Stars
591
Forks
429
Avg merge
1d 9h
Merged PRs (30d)
19

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