Irrelevant "Invalid runtime for JavaSE-21" on start with WSL

Describe the bug
I run vscode with WSL.

Bujt on startup, I get this message:

"Invalid runtime for JavaSE-21: The path points to a missing or inaccessible folder (c:\Program Files\Amazon Corretto\jdk21.0.9_10)."

It should not try a Windows path from WSL Remote. I suspect it either walks over all $PATH entries, or falsely evaluates the Windows side JAVA_HOME.

After closing the message, everything works fine, it correctly uses the JDK in Linux/WSL for everything.

To Reproduce
(Have a valid JDK installed in Windows. I have it in the Windows PATH, and JAVA_HOME set)
Steps to reproduce the behavior:

1. Start VSCode on a project residing in WSL
2. Wait a few seconds for the message to pop up.

Expected behavior
Not showing that message.

Environment

• Operating System: Windows
• JDK version: 21 (The mistakenly picked up Amazon Corretto on Windows, and either OpenJDK or Corretto within WSL)
• Visual Studio Code version: 1.127.0
• Java extension version: 1.55.0

Additional Information
I tried these things:

• Checking for the path in any configuration (workspace, user, WSL, project)
• deleting ~/.vscode-server completely in WSL
• deleting globalStorage and workspaceStorage in Windows %APPDATA%
• disable "Detect JDK at startup" option, no effect.

まず、WSL 経由で開いた VS Code プロジェクトで起動時の警告を再現し、次に Java ランタイムの検出と、リモートコンテキストで Windows PATH または JAVA_HOME がどのように評価されるかを追跡します。Windows JDK が無効として報告されず、有効な WSL JDK が引き続き使用され、警告が表示されなければ完了です。