Test Runner for Java (pre-release 0.43.2025120408) contains some error

Trace - 4:18:56 PM] Received notification 'window/logMessage'.
[Error - 4:18:56 PM] Dec 15, 2025, 4:19:55 PM Cannot refresh bundle org.eclipse.jdt.ls.core because its dependency closure includes the org.eclipse.jdt.ls.core bundle.
[Trace - 4:18:56 PM] Received notification 'window/logMessage'.
[Error - 4:18:56 PM] Dec 15, 2025, 4:19:55 PM Failed to load extension bundles 
org.eclipse.core.runtime.CoreException: Load bundle list
	at org.eclipse.jdt.ls.core.internal.handlers.BundleUtils.loadBundles(BundleUtils.java:175)
	at org.eclipse.jdt.ls.core.internal.handlers.InitHandler.handleInitializationOptions(InitHandler.java:100)
	at org.eclipse.jdt.ls.core.internal.handlers.BaseInitHandler.initialize(BaseInitHandler.java:67)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.initialize(JDTLanguageServer.java:286)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$recursiveFindRpcMethods$0(GenericEndpoint.java:65)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:128)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:271)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:201)
	at org.eclipse.jdt.ls.core.internal.ParentProcessWatcher.lambda$1(ParentProcessWatcher.java:86)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:185)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:97)
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:114)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
Contains: Install bundle failure /home/r/.vscode-server/extensions/vscjava.vscode-java-test-0.43.2025120408/server/org.eclipse.jdt.junit.core_3.14.0.v20251201-1407.jar
org.osgi.framework.BundleException: A bundle is already installed with the name "org.eclipse.jdt.junit.core" and version "3.14.0.v20251201-1407"
	at org.eclipse.osgi.container.ModuleContainer.install(ModuleContainer.java:479)
	at org.eclipse.osgi.storage.Storage.install(Storage.java:753)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.installBundle(BundleContextImpl.java:183)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.installBundle(BundleContextImpl.java:176)
	at org.eclipse.jdt.ls.core.internal.handlers.BundleUtils.installBundle(BundleUtils.java:191)
	at org.eclipse.jdt.ls.core.internal.handlers.BundleUtils.loadBundles(BundleUtils.java:161)
	at org.eclipse.jdt.ls.core.internal.handlers.InitHandler.handleInitializationOptions(InitHandler.java:100)
	at org.eclipse.jdt.ls.core.internal.handlers.BaseInitHandler.initialize(BaseInitHandler.java:67)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.initialize(JDTLanguageServer.java:286)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$recursiveFindRpcMethods$0(GenericEndpoint.java:65)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:128)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:271)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:201)
	at org.eclipse.jdt.ls.core.internal.ParentProcessWatcher.lambda$1(ParentProcessWatcher.java:86)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:185)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:97)
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:114)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
Contains: Install bundle failure /home/r/.vscode-server/extensions/vscjava.vscode-java-test-0.43.2025120408/server/org.eclipse.jdt.junit.runtime_3.8.0.v20251113-1434.jar
org.osgi.framework.BundleException: A bundle is already installed with the name "org.eclipse.jdt.junit.runtime" and version "3.8.0.v20251113-1434"
	at org.eclipse.osgi.container.ModuleContainer.install(ModuleContainer.java:479)
	at org.eclipse.osgi.storage.Storage.install(Storage.java:753)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.installBundle(BundleContextImpl.java:183)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.installBundle(BundleContextImpl.java:176)
	at org.eclipse.jdt.ls.core.internal.handlers.BundleUtils.installBundle(BundleUtils.java:191)
	at org.eclipse.jdt.ls.core.internal.handlers.BundleUtils.loadBundles(BundleUtils.java:161)
	at org.eclipse.jdt.ls.core.internal.handlers.InitHandler.handleInitializationOptions(InitHandler.java:100)
	at org.eclipse.jdt.ls.core.internal.handlers.BaseInitHandler.initialize(BaseInitHandler.java:67)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.initialize(JDTLanguageServer.java:286)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$recursiveFindRpcMethods$0(GenericEndpoint.java:65)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:128)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:271)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:201)
	at org.eclipse.jdt.ls.core.internal.ParentProcessWatcher.lambda$1(ParentProcessWatcher.java:86)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:185)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:97)
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:114)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
Contains: Install bundle failure /home/r/.vscode-server/extensions/vscjava.vscode-java-test-0.43.2025120408/server/org.junit_4.13.2.v20240929-1000.jar
org.osgi.framework.BundleException: A bundle is already installed with the name "org.junit" and version "4.13.2.v20240929-1000"
	at org.eclipse.osgi.container.ModuleContainer.install(ModuleContainer.java:479)
	at org.eclipse.osgi.storage.Storage.install(Storage.java:753)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.installBundle(BundleContextImpl.java:183)
	at org.eclipse.osgi.internal.framework.BundleContextImpl.installBundle(BundleContextImpl.java:176)
	at org.eclipse.jdt.ls.core.internal.handlers.BundleUtils.installBundle(BundleUtils.java:191)
	at org.eclipse.jdt.ls.core.internal.handlers.BundleUtils.loadBundles(BundleUtils.java:161)
	at org.eclipse.jdt.ls.core.internal.handlers.InitHandler.handleInitializationOptions(InitHandler.java:100)
	at org.eclipse.jdt.ls.core.internal.handlers.BaseInitHandler.initialize(BaseInitHandler.java:67)
	at org.eclipse.jdt.ls.core.internal.handlers.JDTLanguageServer.initialize(JDTLanguageServer.java:286)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.lambda$recursiveFindRpcMethods$0(GenericEndpoint.java:65)
	at org.eclipse.lsp4j.jsonrpc.services.GenericEndpoint.request(GenericEndpoint.java:128)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleRequest(RemoteEndpoint.java:271)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:201)
	at org.eclipse.jdt.ls.core.internal.ParentProcessWatcher.lambda$1(ParentProcessWatcher.java:86)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:185)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:97)
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:114)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)

mozhuanzuojing

Hi mozhuanzuojing, I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.

Suggestions

Run Java: Clean Java language server workspace from the VS Code Command Palette and reload the window. This will delete all cached bundles and often resolves duplicate‐bundle errors.
Manually remove the server folders under:
- ~/.vscode-server/extensions/vscjava.vscode-java-test-*/server
- ~/.vscode-server/extensions/vscjava.vscode-java-debug-*/server
  then restart VS Code to force a fresh install of those bundles.
Make sure your Java Test and Debug extensions are on compatible versions (avoid mixing pre-release and stable builds).
If the problem persists, uninstall and reinstall the Java Test and Debugger for Java extensions.

Other references with low confidence

Update jar version and load bundle throw exception (Update jar version and load bundle throw exception vscode-java-debug#54): a similar OSGi BundleException when installing a debug plugin JAR. Users resolved it by clearing the extension cache and ensuring matching JAR versions.
Update jar version and load bundle throw exception vscode-java-debug#54

The team will respond to your issue shortly. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or incorrect, please give it a 👎. Your feedback helps us improve!

env

#1825

mozhuanzuojing

mozhuanzuojing please upgrade to latest stable version of this extension to check. thanks!

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Test Runner for Java (pre-release 0.43.2025120408) contains some error #1823

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Test Runner for Java (pre-release 0.43.2025120408) contains some error #1823

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github-actions commented on Dec 15, 2025

mozhuanzuojing commented on Dec 15, 2025

wenytang-ms commented on Jan 4, 2026

wenytang-ms commented on Jan 9, 2026

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