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

See original GitHub issue

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%

Issue Analytics

  • State:closed
  • Created 5 years ago
  • Reactions:3
  • Comments:19 (7 by maintainers)

github_iconTop GitHub Comments

1reaction
ahmedhamdy2121commented, Jan 7, 2021

@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.

1reaction
muggellcommented, May 15, 2019

@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.

Read more comments on GitHub >

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