Starting Java Language Server never ends

[mgcvnrpj]

"Starting Java Language Server never" message never ends at the status bar after installing the extension Language Support for java by Red Hat

Environment

• Operating System: Microsoft Windows 7 Enterprise - 32 bit
• JDK version:1.8.0_121
• Visual Studio Code version:1.9.1

Steps To Reproduce

1. Installed extension Language support for java
2. User Settings for "java.home":null
3. JAVA_HOME pointing to C:\Program Files\Java\jdk1.8.0_112

Current Result

Couldnot start client language support for java
unexpected end of file

Additional Informations

[gorkem]

Can you remove the java.home setting completely?
Is this a maven based project?

[mgcvnrpj]

I removed the user settings completely. Deleted all that was there and restarted but the same result.

[gorkem]

Downloading an ubuntu. I will try to replicate.

[mgcvnrpj]

It is a Maven project

[mgcvnrpj]

Is there any wrong settings I am doing from my side. I am attaching java configuration, user settings and the JAVA_HOME env variable. Please let me know if I am missing any settings

[mgcvnrpj]

OS Details and JAVA Version below

OS Name: Microsoft Windows 7 Enterprise
OS Version: 6.1.7601 Service Pack 1 Build 7601
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) Client VM (build 25.121-b13, mixed mode)

[mgcvnrpj]

Any update on the issue?

[gorkem]

I was not able to reproduce so far. I still need to find a win7.

[coccor]

I also started experiencing this but on Windows 10 (also a Maven project)
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)

[rubin55]

I am experiencing this on Gentoo with JDK 1.8.0_121 and vscode 1.10.1; It seems the language server never completes startup. This is with a single small maven project. I see that the maven project also has a gradle option and I saw a backtrace related to the .gradle dir. The project is here: https://github.com/rubin55/microservices-demo

To reproduce, simply open the folder of that project, as the only folder open and see completion never work. Notice .gradle related backtrace when you click on the thumbs-up icon.

[coccor]

Manage to fix this by deleting %APPDATA%\Code\User\workspaceStorage\

[gorkem]

I suspect that some of the metadata that server uses gets corrupted and server shuts down itself, this may be rooted from #3. As @korn3l suggested deleting this metadata can be a workaround. Does it work for others?

[rubin55]

I can confirm that removing ~/.config/Code/User/workspaceStorage/ (I'm on linux) works! after removing that and starting code, completion works immediately.

[mgcvnrpj]

I am still facing the same issue even after deleting %APPDATA%\Code
Tried it on vscode 1.10.1, Language Support for Java 0.0.11 on windows 7 for a maven project

[ffaubert]

I just had this issue start happening to me this morning after working for weeks. The error getting thrown was:
[Error - 8:27:52 AM] Mar 9, 2017 8:27:50 AM Missing resource filter type: 'org.eclipse.ui.ide.multiFilter'.
null
java.lang.Error
at org.eclipse.core.internal.resources.Filter.match(Filter.java:64)
at org.eclipse.core.internal.resources.Filter.filterExcludes(Filter.java:159)
at org.eclipse.core.internal.resources.Filter.filter(Filter.java:112)
at org.eclipse.core.internal.resources.Resource.filterChildren(Resource.java:1971)
at org.eclipse.core.internal.resources.Resource.filterChildren(Resource.java:1933)
at org.eclipse.core.internal.localstore.UnifiedTree.getLocalList(UnifiedTree.java:352)
at org.eclipse.core.internal.localstore.UnifiedTree.addChildren(UnifiedTree.java:140)
at org.eclipse.core.internal.localstore.UnifiedTree.addNodeChildrenToQueue(UnifiedTree.java:246)
at org.eclipse.core.internal.localstore.UnifiedTree.accept(UnifiedTree.java:112)
at org.eclipse.core.internal.localstore.FileSystemResourceManager.refreshResource(FileSystemResourceManager.java:971)
at org.eclipse.core.internal.localstore.FileSystemResourceManager.refresh(FileSystemResourceManager.java:954)
at org.eclipse.core.internal.resources.Resource.refreshLocal(Resource.java:1560)
at org.eclipse.jdt.ls.core.internal.managers.EclipseProjectImporter.createProject(EclipseProjectImporter.java:103)
at org.eclipse.jdt.ls.core.internal.managers.EclipseProjectImporter.importToWorkspace(EclipseProjectImporter.java:84)
at org.eclipse.jdt.ls.core.internal.managers.ProjectsManager.initializeProjects(ProjectsManager.java:75)
at org.eclipse.jdt.ls.core.internal.handlers.InitHandler$1.run(InitHandler.java:89)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)

I deleted ~/Library/Application Support/Code/User/workspaceStorage and restarted VSCode and it started working again.