can not start debug, error msg: Connection to server is erroring. Shutting down server.

Environment

• Operating System: ArchLinux
• JDK version: jdk8-openjdk
• Visual Studio Code version: 1.24.0
• Java extension version: Language Support for Java™ by Red Hat 0.27.0

Steps To Reproduce

1. install ‘Java Extension Pack’ in vscode
2. install jdk8-openjdk on ArchLinux
3. create an folder, then create a Helloworld.java in this folder
4. clear ~/.config/Code/logs/*
5. close vscode
6. re-open vscode, Helloworld.java is automatically opened (so redhat.java extension is automatically actived in vscode)
7. open output window, switch to ‘Lauguage support for Java’ in dropdown list
8. see this error(twice in output window): [Error - 12:04:37] Connection to server is erroring. Shutting down server.

[Trace - 12:16:17] Sending request 'shutdown - (1)'.
[Error - 12:16:17] Connection to server is erroring. Shutting down server.
[Error - 12:16:17] Connection to server is erroring. Shutting down server.

Current Result

nothing happened after click debug start button, configuration below(launch.json): { “version”: “0.2.0”, “configurations”: [ { “type”: “java”, “name”: “Debug TestRunner”, “request”: “launch”, “cwd”: “${workspaceFolder}/bin”, “console”: “internalConsole”, “stopOnEntry”: false, “sourcePaths”: [ “${workspaceRoot}/src/com/xx/oo/” ], “classPaths”: [ “${workspaceRoot}/bin” ], “mainClass”: “TestRunner”, “args”: “” } ] }

Expected Result

debug procedure started and stopped on my breakpoint.

Additional Informations

There is no any eclipse components install on my system, cause I saw there is two parts of redhat.java extension which one part is eclipse.jdt.ls. Is this matters ?

[gengu]

How do I find output-log file by “java.trace.server”: “verbose” ?

[Hacksign]

@Hacksign The java language server cannot startup, I see the initialize request but no response, the rocket icon is showing when the java language server is starting, seems it’s your project’s problem, could you please show us the result of tree structure of your directory: /home/dev/xxx/JDISMapReduce using: sudo apt install tree && tree /home/dev/xxx/JDISMapReduce?

BTW: *****There is no any eclipse components install on my system, cause I saw there is two parts of redhat.java extension which one part is eclipse.jdt.ls. Is this matters ? — redhat.java will contain a headless eclipse for you, eclipse.jdt.ls is the most import plugin in this headless eclipse, so it doesn’t matter whether or not you have installed eclipse.

Thanks for reply, It is indeed my project’s problem. This error do not exists after I change my project to MAVEN project.

This issue can close now ~