Errors occurred during the build

[Mukund-Bhardwaj]

Not able to run the debugger as I get class not found exception.
When I checked the logs I found out that there are errors while building the project and the target folder has no class files.

I have attached the log file for reference

client.log.2025-06-30.log

[github-actions]

Hi Mukund Bhardwaj (@Mukund-Bhardwaj), 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.

• Check the language server build logs for detailed errors:

  • Run F1 > Java: Open Java Language Server Log File and search for building workspace to locate build failures.
    • "Build failed, do you want to continue?" happening frequently #702 (comment)

• Clean & rebuild your workspace:

  • Run F1 > Java: Clean the Java language server workspace, then restart VS Code.

• Verify your build tool outside the editor:

  • In a terminal, run mvn clean install or ./gradlew build to see if the project compiles successfully and to pinpoint errors.

• If you’re on the pre-release version of the Java extension with a newer JDK (e.g. JDK 24):

  • Switch to the stable release: in the Extensions view, find Language Support for Java™ by Red Hat and click Switch to Release Version.

labels:

• bug
  duplicateUrls: []

Other references with low confidence

• Built errors and “Velocity is not initialized correctly.” error
  • Stacktrace in AutoBuildJob.doBuild and “Errors occurred during the build”
  • Built errors and "Velocity is not initialized correctly." error redhat-developer/vscode-java#762

• today (2025-06-26) pre-release has some error！
  • Issues in pre-release JDT LS causing internal errors
  • today (2025-06-26) pre-release has some error！ redhat-developer/vscode-java#4088

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!