Cannot debug JDK17 itself with "Debugger for Java" v0.49.1

I'm building and debugging OpenJDK 17 on Windows 11. I'd like to debug it with VSCode.
I submitted the issue #1285 before for other version of extensions, but now Java Debugger extension seems totally broken.

1. I have disabled "build before launch" for both User and Workspace, but every time I run the debug configuration (see below), I see the message about "Debug 'Launch Java Program': compiling..." and then "Build failed, do you want to continue?" with a lot of compilation errors.
2. It can debug source of my tests, but it cannot step in JDK classes. It seems like it cannot find neither source files, not debug info for fresh built fast-debug JDK.
3. If I open one of JDK java-files in VSCode and try run the debugger (the same configuration), it shows "Debug 'Launch Java Program': compiling...", and may hang until OutOfMemory error occurs.
4. I have set "java.configuration.runtimes" option to manually downloaded JDK, but, in TaskMonitor, I still see Java.exe process running from "C:\Users\username\.vscode\extensions\redhat.java-1.17.0-win32-x64\jre\17.0.6-win32-x86_64\bin". It looks like scanning my JDK source files, but cannot do this properly. It consumes a lot of memory (1GB+), and reports about OutOfMemory error in VSCode time to time.

Is it really broken now?
Is my configuration wrong maybe?

Environment

• Operating System: Windows 11
• JDK version: 17
• Visual Studio Code version: 1.77.3
• Extension Pack for Java: v0.25.10
• Debugger for Java: v0.49.1
• Language Support for Java(TM) by Red Hat: v1.17.0

My setting.json:

    "java.configuration.runtimes": [
        {
            "default": true,
            "name": "JavaSE-17",
            "path": "c:\\Users\\username\\work\\jdk"
        }
    ]
    "java.debug.settings.onBuildFailureProceed": false,
    "java.debug.settings.forceBuildBeforeLaunch": false

My launch.json:

        {
            "type": "java",
            "name": "Launch Java Program",
            "request": "launch",
            "cwd": "${workspaceFolder}\\jdk\\myjdk\\MyJdkTest\\MyJdkTest",
            "mainClass": "jdk.test.lib.myjdk.MyJdkTest",
            "vmArgs": "-ea <other vm args>",
            "args": "<java test args>",
            "classPaths": [
                "${workspaceFolder}\\classes\\jdk\\myjdk\\MyJdkTest\\MyJdkTest.d",
                "${workspaceFolder}\\classes\\test\\lib"
            ],
            "javaExec": "c:/Users/username/work/myjdk/build/windows-x86_64-server-fastdebug/jdk/bin/java.exe",
        },

まず、提供された settings.json と launch.json を使用し、Windows 11 上で指定された OpenJDK 17、VS Code、拡張機能のバージョンを使って動作を再現します。設定されたランタイム、build-before-launch の動作、JDK ソースのステップ実行、Java プロセスのメモリ使用量を確認します。失敗を切り分け、動作するデバッグ構成または拡張機能の具体的な不具合を特定できれば完了です。