java.debug.settings.hotCodeReplace "auto" has a wierd behaviour

[GianlucaTurra]

As per title if I set java.debug.settings.hotCodeReplace to "auto" it seems to trigger the "applying code changes" multiple time, which requires more time and eventually ends up in rebuilding the entire application instead of the single modified.

I tried to look out for some kind of output or log to get core of the issue but without any success. I also tried to look out at the docs in case I messed up the settings but nothing looks out of place, except maybe for the "java.autobuild.enabled" set to true (which is not a debugger setting).

    "java.debug.settings.console": "internalConsole",
    "java.debug.settings.hotCodeReplace": "manual",
    "java.debug.settings.forceBuildBeforeLaunch": true

Manually invoking the hot code replace works as intended (at least per my knowledge).

[github-actions]

Hi @GianlucaTurra, I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.

Workarounds & Suggestions

• Switch to manual HCR until the root cause is addressed:

  "java.debug.settings.hotCodeReplace": "manual"

• Disable automatic builds in VS Code to avoid repeated triggers:

  "java.autobuild.enabled": false

• Ensure you’re on the latest versions of:
  • VS Code
  • Extension Pack for Java (redhat.java & vscjava.vscode-java-debug)

Duplicates

• This appears to be the same as hot code replace set to auto causes endless "appyling code changes" notifications redhat-developer/vscode-java#2350 (endless “Applying code changes…” when hotCodeReplace=auto)

Other references with high confidence

• Related hot-swap issue in the Java Debug extension: Hot Code replacement popup - "Don't show again"-button doesn't work #1039
• Discussion about the HCR listener/build cycle: Java Web project compiles all the time when save #1131

Other references with low confidence

• HCR Action button design: background on auto vs manual vs never modes
• Add/Delete Method not implemented – Hot Code Replace: general HCR troubleshooting

The team will respond to your issue shortly. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or incorrect, please give it a 👎. Your feedback helps us improve!