Bug: can use up/down arrow key to change JDK runtime in project settings

[chagong]

Environment:

• VS Code Version: Extension Pack for Java

When use up/down arrow key on keyboard to change JDK runtime in project settings webview, it can not take effect. It works fine only when you use mouse click.

[github-actions]

Hi @chagong, 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.

It looks like this is indeed a bug in the Java extension’s JDK-Runtime webview (arrow keys don’t update the selection). As a workaround, you can bypass the UI and configure your project JDKs directly in settings.json:

• Add an entry for each JDK under java.configuration.runtimes, for example:

"java.configuration.runtimes": [
  {
    "name": "JavaSE-17",
    "path": "/path/to/jdk-17"
  },
  {
    "name": "JavaSE-8",
    "path": "/path/to/jdk-8"
  }
]

• See “Project JDKs” in the extension README for more details:
• https://github.com/redhat-developer/vscode-java#project-jdks

If you rely on the UI selector, please file an issue so we can track arrow-key support in the webview.

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!