vscode-java: Code-completion not working with Language Support for Java and Visual Studio IntelliCode - Preview

Issue Type: Bug

Not sure if this belongs to LSfJ or is an Visual Studio IntelliCode Issue.

VScode fails to show code-completion on fields. This happens if Language Support for Java and Visual Studio IntelliCode - Preview are installed AND "java.implementationsCodeLens.enabled": true is NOT set in settings.json.

Instead of showing the suggestions only an exception is thrown.

Peek 2019-03-17 23-33

Extension version: 0.41.0 VS Code version: Code 1.32.3 (a3db5be9b5c6ba46bb7555ec5d60178ecc2eaae4, 2019-03-14T23:38:49.842Z) OS version: Linux x64 4.20.15-1-MANJARO

settings.json 
{
    "window.titleBarStyle": "custom",
    "files.exclude": {
        "**/.classpath": true,
        "**/.project": true,
        "**/.settings": true,
        "**/.factorypath": true
    },
    "editor.suggestSelection": "first",
    "vsintellicode.modify.editor.suggestSelection": "automaticallyOverrodeDefaultValue",
    "java.referencesCodeLens.enabled": true,
    // "java.implementationsCodeLens.enabled": true
}
pom.xml 
<project xmlns="http://maven.apache.org/POM/4.0.0" 
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>spcified</groupId>
  <artifactId>test-vs-code</artifactId>
  <version>1.0-SNAPSHOT</version>

  <name>test-vs-code</name>

  <properties>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>
Extensions Log 
[2019-03-17 23:50:50.915] [exthost] [info] extension host started
[2019-03-17 23:50:50.957] [exthost] [info] ExtensionService#_doActivateExtension vscode.debug-auto-launch {"startup":true,"activationEvent":"*"}
[2019-03-17 23:50:50.958] [exthost] [info] ExtensionService#loadCommonJSModule /opt/visual-studio-code/resources/app/extensions/debug-auto-launch/dist/extension
[2019-03-17 23:50:50.961] [exthost] [info] ExtensionService#_doActivateExtension vscode.emmet {"startup":true,"activationEvent":"*"}
[2019-03-17 23:50:50.961] [exthost] [info] ExtensionService#loadCommonJSModule /opt/visual-studio-code/resources/app/extensions/emmet/dist/extension
[2019-03-17 23:50:50.968] [exthost] [info] ExtensionService#_doActivateExtension vscode.git {"startup":true,"activationEvent":"*"}
[2019-03-17 23:50:50.968] [exthost] [info] ExtensionService#loadCommonJSModule /opt/visual-studio-code/resources/app/extensions/git/dist/main
[2019-03-17 23:50:51.004] [exthost] [info] ExtensionService#_doActivateExtension vscode.merge-conflict {"startup":true,"activationEvent":"*"}
[2019-03-17 23:50:51.004] [exthost] [info] ExtensionService#loadCommonJSModule /opt/visual-studio-code/resources/app/extensions/merge-conflict/dist/extension
[2019-03-17 23:50:51.008] [exthost] [info] ExtensionService#_doActivateExtension redhat.java {"startup":false,"activationEvent":"onLanguage:java"}
[2019-03-17 23:50:51.008] [exthost] [info] ExtensionService#loadCommonJSModule /home/wusluf/.vscode/extensions/redhat.java-0.41.0/dist/extension
[2019-03-17 23:50:51.022] [exthost] [info] ExtensionService#_doActivateExtension VisualStudioExptTeam.vscodeintellicode {"startup":false,"activationEvent":"onLanguage:java"}
[2019-03-17 23:50:51.022] [exthost] [info] ExtensionService#loadCommonJSModule /home/wusluf/.vscode/extensions/visualstudioexptteam.vscodeintellicode-1.1.4/dist/intellicode
[2019-03-17 23:50:58.544] [exthost] [info] eager extensions activated
Language Server Log 
!SESSION 2019-03-17 23:50:51.525 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.8.0_202
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Command-line arguments:  -data /home/wusluf/.config/Code/User/workspaceStorage/cc225f46f4cba87c7cd345dbcfbf8b78/redhat.java/jdt_ws

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:54.652
!MESSAGE class org.eclipse.jdt.ls.core.internal.JavaLanguageServerPlugin is started

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:54.828
!MESSAGE Main thread is waiting

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:54.868
!MESSAGE >> initialize

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:54.869
!MESSAGE Initializing Java Language Server 0.35.0.201903150009

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:54.925
!MESSAGE >> initialized

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:54.968
!MESSAGE Creating the Java project jdt.ls-java-project

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:56.018
!MESSAGE Finished creating the Java project jdt.ls-java-project

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:56.477
!MESSAGE Importing Maven project(s)

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:58.537
!MESSAGE Workspace initialized in 3647ms

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:58.934
!MESSAGE >> workspace/didChangeConfiguration

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:58.955
!MESSAGE >> registerFeature 'workspace/didChangeWatchedFiles'

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:58.970
!MESSAGE >> registerFeature 'workspace/didChangeWatchedFiles'

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:59.035
!MESSAGE >>New configuration: {java={home=null, jdt={ls={vmargs=-noverify -Xmx1G -XX:+UseG1GC -XX:+UseStringDeduplication}}, errors={incompleteClasspath={severity=warning}}, configuration={checkProjectSettingsExclusions=true, updateBuildConfiguration=automatic, maven={userSettings=null}}, trace={server=off}, import={gradle={enabled=true}, maven={enabled=true}, exclusions=[**/node_modules/**, **/.metadata/**, **/archetype-resources/**, **/META-INF/maven/**]}, referencesCodeLens={enabled=true}, signatureHelp={enabled=false}, implementationsCodeLens={enabled=false}, format={enabled=true, settings={url=null, profile=null}, comments={enabled=true}, onType={enabled=true}}, saveActions={organizeImports=false}, contentProvider={preferred=null}, autobuild={enabled=true}, maxConcurrentBuilds=1.0, completion={enabled=true, overwrite=true, guessMethodArguments=false, favoriteStaticMembers=[org.junit.Assert.*, org.junit.Assume.*, org.junit.jupiter.api.Assertions.*, org.junit.jupiter.api.Assumptions.*, org.junit.jupiter.api.DynamicContainer.*, org.junit.jupiter.api.DynamicTest.*, org.mockito.Mockito.*, org.mockito.ArgumentMatchers.*, org.mockito.Answers.*], importOrder=[java, javax, com, org]}, progressReports={enabled=true}, codeGeneration={hashCodeEquals={useJava7Objects=false, useInstanceof=false, useBlocks=false, generateComments=false}}}}

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:59.047
!MESSAGE >> document/didOpen

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:59.321
!MESSAGE >> workspace/executeCommand java.intellicode.enable

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:59.343
!MESSAGE >> document/codeAction

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:50:59.365
!MESSAGE >> document/codeLens

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:00.715
!MESSAGE >> document/codeAction

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:01.630
!MESSAGE begin problem for /App.java

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:01.631
!MESSAGE 1 problems reported for /App.java

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:01.633
!MESSAGE Reconciled 0, validated: 1. Took 1181 ms

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:02.074
!MESSAGE >> document/codeAction

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:02.213
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:02.215
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:02.216
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:03.317
!MESSAGE >> document/didChange

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:03.515
!MESSAGE >> document/codeLens

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:03.766
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:03.766
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:03.767
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:03.880
!MESSAGE begin problem for /App.java

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:03.881
!MESSAGE 2 problems reported for /App.java

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:03.883
!MESSAGE Reconciled 0, validated: 1. Took 112 ms

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:04.461
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:04.462
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:04.463
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:06.198
!MESSAGE >> document/didChange

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:06.403
!MESSAGE >> document/codeLens

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:06.407
!MESSAGE >> document/codeAction

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:06.657
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:06.658
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:06.658
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:06.718
!MESSAGE begin problem for /App.java

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:06.732
!MESSAGE 1 problems reported for /App.java

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:06.736
!MESSAGE Reconciled 0, validated: 1. Took 79 ms

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:06.992
!MESSAGE >> document/codeAction

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:07.372
!MESSAGE >> document/codeAction

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:08.327
!MESSAGE >> document/didChange

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:08.561
!MESSAGE >> document/codeLens

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:08.563
!MESSAGE >> document/codeAction

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:08.792
!MESSAGE begin problem for /App.java

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:08.792
!MESSAGE 2 problems reported for /App.java

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:08.795
!MESSAGE Reconciled 0, validated: 1. Took 63 ms

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.068
!MESSAGE >> document/codeAction

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.214
!MESSAGE >> document/didChange

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.282
!MESSAGE >> workspace/executeCommand java.intellicode.completion

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.417
!MESSAGE >> document/codeLens

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.421
!MESSAGE >> document/codeAction

!ENTRY com.microsoft.jdtls.intellicode.core 4 0 2019-03-17 23:51:09.431
!MESSAGE Problem with codeComplete for file:///home/wusluf/projects/learning/JMH%20-%20clean%20project/test-vs-code/src/main/java/spcified/App.java
!STACK 0
java.lang.ClassCastException: org.eclipse.jdt.internal.codeassist.impl.AssistSourceField cannot be cast to org.eclipse.jdt.core.IMethod
	at com.microsoft.jdtls.intellicode.core.pythia.PythiaCompletionContext.getMethodDeclaration(PythiaCompletionContext.java:185)
	at com.microsoft.jdtls.intellicode.core.pythia.PythiaCompletionContext.getCalls(PythiaCompletionContext.java:176)
	at com.microsoft.jdtls.intellicode.core.pythia.PythiaCompletionProvider.provideCompletionItems(PythiaCompletionProvider.java:59)
	at com.microsoft.jdtls.intellicode.core.CompletionProvider.computeContentAssist(CompletionProvider.java:117)
	at com.microsoft.jdtls.intellicode.core.CompletionProvider.provideCompletionItems(CompletionProvider.java:60)
	at com.microsoft.jdtls.intellicode.core.CommandHandler.executeCommand(CommandHandler.java:57)
	at org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler$1.run(WorkspaceExecuteCommandHandler.java:151)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler.executeCommand(WorkspaceExecuteCommandHandler.java:141)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$4(JDTLanguageServer.java:455)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$30(JDTLanguageServer.java:821)
	at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:602)
	at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
	at java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:443)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

!ENTRY com.microsoft.jdtls.intellicode.core 1 0 2019-03-17 23:51:09.434
!MESSAGE Completion request cancelled

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.651
!MESSAGE begin problem for /App.java

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.652
!MESSAGE 1 problems reported for /App.java

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.654
!MESSAGE Reconciled 0, validated: 1. Took 37 ms

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.671
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.672
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.674
!MESSAGE >> codeLens/resolve

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:09.923
!MESSAGE >> document/codeAction

!ENTRY org.eclipse.jdt.ls.core 1 0 2019-03-17 23:51:10.240
!MESSAGE >> codeLens/resolve
Language Supprt for Java Output 
[Error - 11:51:09 PM] Mar 17, 2019 11:51:09 PM Problem with codeComplete for file:///home/wusluf/projects/learning/JMH%20-%20clean%20project/test-vs-code/src/main/java/spcified/App.java
org.eclipse.jdt.internal.codeassist.impl.AssistSourceField cannot be cast to org.eclipse.jdt.core.IMethod
java.lang.ClassCastException: org.eclipse.jdt.internal.codeassist.impl.AssistSourceField cannot be cast to org.eclipse.jdt.core.IMethod
	at com.microsoft.jdtls.intellicode.core.pythia.PythiaCompletionContext.getMethodDeclaration(PythiaCompletionContext.java:185)
	at com.microsoft.jdtls.intellicode.core.pythia.PythiaCompletionContext.getCalls(PythiaCompletionContext.java:176)
	at com.microsoft.jdtls.intellicode.core.pythia.PythiaCompletionProvider.provideCompletionItems(PythiaCompletionProvider.java:59)
	at com.microsoft.jdtls.intellicode.core.CompletionProvider.computeContentAssist(CompletionProvider.java:117)
	at com.microsoft.jdtls.intellicode.core.CompletionProvider.provideCompletionItems(CompletionProvider.java:60)
	at com.microsoft.jdtls.intellicode.core.CommandHandler.executeCommand(CommandHandler.java:57)
	at org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler$1.run(WorkspaceExecuteCommandHandler.java:151)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
	at org.eclipse.jdt.ls.core.internal.handlers.WorkspaceExecuteCommandHandler.executeCommand(WorkspaceExecuteCommandHandler.java:141)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$4(JDTLanguageServer.java:455)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.lambda$30(JDTLanguageServer.java:821)
	at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:602)
	at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
	at java.util.concurrent.CompletableFuture$Completion.exec(CompletableFuture.java:443)
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
System Info
Item Value
CPUs Intel® Core™ i3-3110M CPU @ 2.40GHz (4 x 1955)
GPU Status 2d_canvas: enabled
checker_imaging: disabled_off
flash_3d: enabled
flash_stage3d: enabled
flash_stage3d_baseline: enabled
gpu_compositing: enabled
multiple_raster_threads: enabled_on
native_gpu_memory_buffers: disabled_software
rasterization: disabled_software
surface_synchronization: enabled_on
video_decode: unavailable_off
webgl: enabled
webgl2: enabled
Load (avg) 1, 1, 1
Memory (System) 7.49GB (0.57GB free)
Process Argv
Screen Reader no
VM 0%

About this issue

  • Original URL
  • State: closed
  • Created 5 years ago
  • Reactions: 4
  • Comments: 19 (7 by maintainers)

Most upvoted comments

@ahmedhamdy90 See if #923 (comment) helps.

@Eskibear I did ask him about how to fix that (update the lookup path). However, I don’t think it will help because hovering over a function shows the documentation correctly, but it is not showing any on code completion.

+1
ahmedhamdy2121 on Jan 7, 2021

@Eskibear That’s my conclusion too. But I’d love for you to help me creating a new issue so that I might be able to get it working properly, and hopefully get a stabile solution. It’s really driving me crazy, so I’d appreciate all the help I can get.

+1
muggell on May 15, 2019

In you log, the response of the resolving command looks not completed, so it has nothing to show.

...
[Trace - 7:34:01 PM] Received response 'workspace/executeCommand - (66)' in 11ms.
Result: {
    "label": "random() : double",
    "kind": 1,
    "detail": "Math",
    "documentation": {
        "kind": "markdown"
// ----> HERE THE "value" FIELD IS MISSING
    },
    "sortText": "999999179",
    "insertText": "random",
...

You may do the following experiments on your machine, to see if the missing is caused by language server or IntelliCode extension.

  • Disable extension “Visual Studio IntelliCode”, reload the window, check the output to see if value of documentation is still missing or not. You can search the log by the keyword “completionItem/resolve”.
  • Together with the response, also share the JDK version, VSCode version, version of this extension and IntelliCode extension.
+1
Eskibear on May 14, 2019
Read more comments on GitHub
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