microsoft / microsoft/vscode-java-debug
Unknown source debugging attached java process
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描述
When attaching to a Java process built with a custom bazel-based build system, the Java debugger can't resolved source even though the file is open, reporting "Unknown source".
Environment
- Operating System: Windows 11 Enterprise locally, Linux remotely.
- JDK version: Adoptium Temurin-17 (tried 21 as well)
- Visual Studio Code version: 1.85.2
- Java extension version: v0.57.0
- Java Debugger extension version: v0.26.0 (extension pack)
- Language support for Java by Red Hat: v1.29.0
Steps To Reproduce
- Start Visual Studio Code and connect to the SSH host.
- In Terminal, build (using proprietary bazel-based build system).
- In Terminal, change to the directory where the result JARs are produced.
- Open the source file with the main function (Pos001.java, in this case).
- Create a java attach-to-process debugger config. No special settings, just type, name, request, processId set as:
"type": "java", "name": "Java attach to process", "projectName": "acquiretokenbyuserid", "request": "attach", "processId":"${command:PickJavaProcess}", - Run main in the target class using typical attach to process parameters as shown below. It is waiting for a keystroke.
java -agentlib:jdwp=transport=dt_socket,server=y,address=5005 -verbose -cp "./*" packagename1.packagename2.Pos001 - In Visual Studio, attach to the process and set a breakpoint just after where the code is waiting for the keystroke.
- In the Terminal window where the process was run, press enter.
Logs: LanguageServerLogFile.txt
I can't provide source or project, sorry.
Current Result
Call stack reports Unknown source and the current source line is not highlighted. The call stack does correctly report the filename and line number of where the program is, so you can manually scroll through. Stepping through and further breakpoints work normally, just with this limitation.
Expected Result
Debugger should highlight the current line and recognize the open file in the editor as the correct source. Or at least, it should behave as Real Visual Studio, asking me "should I use this file?" or allowing me to browse for it.
Additional Informations
- Language Support for Java window reports several instances of the following:
[Error - 6:19:42 PM] Apr 21, 2024, 6:19:42 PM _/lotus-qe/core-pfs/src/test/java/sts/acquiretokenbyuserid [in rpsmain2_f021ed] does not exist _/lotus-qe/core-pfs/src/test/java/sts/acquiretokenbyuserid [in rpsmain2_f021ed] does not exist Java Model Exception: Error in Java Model (code 969): _/lotus-qe/core-pfs/src/test/java/sts/acquiretokenbyuserid [in rpsmain2_f021ed] does not exist at org.eclipse.jdt.internal.core.JavaElement.newNotPresentException(JavaElement.java:562) at org.eclipse.jdt.internal.core.PackageFragmentRoot.getUnderlyingResource(PackageFragmentRoot.java:764) at org.eclipse.jdt.internal.core.PackageFragment.getUnderlyingResource(PackageFragment.java:430) at org.eclipse.jdt.internal.core.Openable.getUnderlyingResource(Openable.java:328) at org.eclipse.jdt.internal.core.CompilationUnit.getUnderlyingResource(CompilationUnit.java:975) at org.eclipse.jdt.ls.core.internal.handlers.BaseDiagnosticsHandler.collectNonJavaProblems(BaseDiagnosticsHandler.java:149) at org.eclipse.jdt.ls.core.internal.handlers.BaseDiagnosticsHandler.endReporting(BaseDiagnosticsHandler.java:135) at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.reportProblems(ReconcileWorkingCopyOperation.java:141) at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:110) at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:740) at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:805) at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1311) at org.eclipse.jdt.ls.core.internal.handlers.BaseDocumentLifeCycleHandler.publishDiagnostics(BaseDocumentLifeCycleHandler.java:332) at org.eclipse.jdt.ls.core.internal.handlers.BaseDocumentLifeCycleHandler.publishDiagnostics(BaseDocumentLifeCycleHandler.java:295) at org.eclipse.jdt.ls.core.internal.handlers.BaseDocumentLifeCycleHandler$PublishDiagnosticJob.run(BaseDocumentLifeCycleHandler.java:777) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) - There's no maven or gradle files in this project, it uses a custom bazel-based build.
- Disabled Maven and Gradle project import, but this seems to make no difference. Debugger appears built to require these.
- Set sourcePaths in debugger config, no help.
- If it matters, JDK is configured via java.jdt.ls.java.home in settings.json on remote host.
贡献指南
从这里开始
- 先读完整个 Issue,再读项目的贡献指南。
- 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
- Fork 仓库,在一个分支上完成修改。
- 提交 Pull Request,并在描述里引用这个 Issue 编号。
调研方向
从随附的 LanguageServerLogFile.txt 开始,调查 Java 附加到进程时的源代码解析路径,并使用列出的 projectName 和 sourcePaths 设置作为切入点。如果可能,请使用提供的配置复现,然后验证已打开的 Pos001.java 是否映射到调用栈位置,以及当前行是否突出显示。
由索引模型根据 Issue 内容生成。
评估
- 技术栈
- java, typescript, vscode
- 领域
- devtools
- Issue 类型
- 缺陷
- 难度
- 4/5
- 预计耗时
- 3-5 天
- 活跃度
- 停滞
- 描述清晰度
- 基本清楚
- 新手友好度
- 32/100