Copilot for Eclipse plugin causing eclipse to freeze(not responding) after updating the plugin to 0.9.3 #168126

amardeep434 · 2025-07-30T13:10:13Z

amardeep434
Jul 30, 2025

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I updated my copilot plugin to 0.9.3 today and since then it has been causing my eclipse to freeze(not responding).

The same freezing issue was noticed with a few of my other colleagues. Not sure how to capture logs for the same.

I'm using eclipse 2025-06 and my colleagues are using 2024-09.

How can i capture logs and share the errors here? Also how can i revert back to the older 0.9.2 version?

2025-07-30T13:10:35Z

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bot Jul 30, 2025

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0 replies

iloveeclipse · 2025-07-31T06:14:06Z

iloveeclipse
Jul 31, 2025

Not sure how to capture logs for the same.

If Eclipse freezes, run jstack -l <Eclipse PID> and attach the generated thread dump.

0 replies

jdneo · 2025-07-31T06:15:46Z

jdneo
Jul 31, 2025

Hi @amardeep434

By saying freeze, do you mean not respond just for a while, or it freezes forever.

If just for a while, Could you please check if there is any error log in the error log view?

If it's forever, pls run jstack -l <Eclipse PID> as @iloveeclipse suggests.

0 replies

amardeep434 · 2025-07-31T07:26:54Z

amardeep434
Jul 31, 2025
Author

Hi @iloveeclipse @jdneo

yes it freezes forever, attached is the thread dump from my eclipse (2025-06)
dump.txt

1 reply

jdneo Jul 31, 2025

Would you mind checking if the latest nightly build can solve the issue? https://marketplace.eclipse.org/content/github-copilot-nightly

Remember to uninstall the stable version of the plugin before install the nightly

iloveeclipse · 2025-07-31T07:41:22Z

iloveeclipse
Jul 31, 2025

UI thread holds UI thread lock and waits for ChatBaseService.getPersistentFilePath() waiting on feature

"main" #1 [33880] prio=6 os_prio=0 cpu=8156.25ms elapsed=230.51s tid=0x000002701eac5330 nid=33880 waiting on condition  [0x0000007f5434d000]
   java.lang.Thread.State: WAITING (parking)
	at jdk.internal.misc.Unsafe.park([email protected]/Native Method)
	- parking to wait for  <0x000000071d400018> (a java.util.concurrent.CompletableFuture$Signaller)
	at java.util.concurrent.locks.LockSupport.park([email protected]/LockSupport.java:221)
	at java.util.concurrent.CompletableFuture$Signaller.block([email protected]/CompletableFuture.java:1908)
	at java.util.concurrent.ForkJoinPool.unmanagedBlock([email protected]/ForkJoinPool.java:4023)
	at java.util.concurrent.ForkJoinPool.managedBlock([email protected]/ForkJoinPool.java:3969)
	at java.util.concurrent.CompletableFuture.waitingGet([email protected]/CompletableFuture.java:1942)
	at java.util.concurrent.CompletableFuture.get([email protected]/CompletableFuture.java:2116)
	at com.microsoft.copilot.eclipse.ui.chat.services.ChatBaseService.getPersistentFilePath(ChatBaseService.java:116)
	at com.microsoft.copilot.eclipse.ui.chat.services.ChatBaseService.getUserPreference(ChatBaseService.java:52)
	- locked <0x0000000713e42400> (a com.microsoft.copilot.eclipse.ui.chat.services.UserPreferenceService)
	at com.microsoft.copilot.eclipse.ui.chat.services.UserPreferenceService.restoreChatModeName(UserPreferenceService.java:221)
	at com.microsoft.copilot.eclipse.ui.chat.services.UserPreferenceService.getActiveChatMode(UserPreferenceService.java:307)
	at com.microsoft.copilot.eclipse.ui.chat.ChatView.buildViewFor(ChatView.java:145)
	at com.microsoft.copilot.eclipse.ui.chat.services.AuthStatusService$$Lambda/0x000002703c297ca0.accept(Unknown Source)
	at org.eclipse.core.internal.databinding.observable.sideeffect.SideEffect.lambda$1(SideEffect.java:330)
	at org.eclipse.core.internal.databinding.observable.sideeffect.SideEffect$$Lambda/0x000002703c0121e8.run(Unknown Source)
	at org.eclipse.core.databinding.observable.ObservableTracker.runAndMonitor(ObservableTracker.java:113)
	at org.eclipse.core.internal.databinding.observable.sideeffect.SideEffect.update(SideEffect.java:199)
	at org.eclipse.core.internal.databinding.observable.sideeffect.SideEffect$PrivateInterface.run(SideEffect.java:349)
	at org.eclipse.core.databinding.observable.Realm$1.run(Realm.java:155)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
	at org.eclipse.core.databinding.observable.Realm.safeRun(Realm.java:159)
	at org.eclipse.jface.databinding.swt.DisplayRealm.lambda$0(DisplayRealm.java:64)
	at org.eclipse.jface.databinding.swt.DisplayRealm$$Lambda/0x000002703b4c1238.run(Unknown Source)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:40)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:132)
	- locked <0x000000071d400000> (a org.eclipse.swt.widgets.RunnableLock)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4111)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3727)

LS server code executes the CompletableFuture code which hangs trying to execute code in UI thread


"LS-com.microsoft.copilot.eclipse.ls#listener-0" #105 [28700] prio=5 os_prio=0 cpu=15.62ms elapsed=71.94s tid=0x0000027002b61f90 nid=28700 in Object.wait()  [0x0000007f5a4fe000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait0([email protected]/Native Method)
	- waiting on <no object reference available>
	at java.lang.Object.wait([email protected]/Object.java:378)
	at java.lang.Object.wait([email protected]/Object.java:352)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:200)
	- locked <0x000000071d5b5fc0> (a org.eclipse.swt.widgets.RunnableLock)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:133)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4870)
	at com.microsoft.copilot.eclipse.ui.utils.SwtUtils.invokeOnDisplayThread(SwtUtils.java:56)
	at com.microsoft.copilot.eclipse.ui.handlers.ShowStatusBarMenuHandler.setIconOnDisplayThread(ShowStatusBarMenuHandler.java:201)
	at com.microsoft.copilot.eclipse.ui.handlers.ShowStatusBarMenuHandler.updateElement(ShowStatusBarMenuHandler.java:194)
	at org.eclipse.ui.internal.handlers.HandlerProxy.updateElement(HandlerProxy.java:433)
	at org.eclipse.ui.internal.handlers.E4HandlerProxy.updateElement(E4HandlerProxy.java:124)
	at org.eclipse.ui.internal.WorkbenchHandlerServiceHandler.updateElement(WorkbenchHandlerServiceHandler.java:43)
	at org.eclipse.ui.internal.commands.CommandService$1.run(CommandService.java:261)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
	at org.eclipse.ui.internal.commands.CommandService.refreshElements(CommandService.java:265)
	at com.microsoft.copilot.eclipse.ui.utils.UiUtils.refreshCopilotMenu(UiUtils.java:298)
	at com.microsoft.copilot.eclipse.ui.CopilotStatusManager.onDidCopilotStatusChange(CopilotStatusManager.java:19)
	at com.microsoft.copilot.eclipse.core.AuthStatusManager.onDidCopilotStatusChange(AuthStatusManager.java:225)
	at com.microsoft.copilot.eclipse.core.AuthStatusManager.setCopilotStatus(AuthStatusManager.java:101)
	at com.microsoft.copilot.eclipse.core.AuthStatusManager.lambda$0(AuthStatusManager.java:113)
	at com.microsoft.copilot.eclipse.core.AuthStatusManager$$Lambda/0x000002703bcc5c40.apply(Unknown Source)
	at java.util.concurrent.CompletableFuture.uniHandle([email protected]/CompletableFuture.java:978)
	at java.util.concurrent.CompletableFuture$UniHandle.tryFire([email protected]/CompletableFuture.java:955)
	at java.util.concurrent.CompletableFuture.postComplete([email protected]/CompletableFuture.java:554)
	at java.util.concurrent.CompletableFuture.completeExceptionally([email protected]/CompletableFuture.java:2238)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleResponse(RemoteEndpoint.java:220)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:204)
	at org.eclipse.lsp4e.LanguageServerWrapper.lambda$3(LanguageServerWrapper.java:358)
	at org.eclipse.lsp4e.LanguageServerWrapper$$Lambda/0x000002703bc310f8.consume(Unknown Source)
	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.util.concurrent.Executors$RunnableAdapter.call([email protected]/Executors.java:572)
	at java.util.concurrent.FutureTask.run([email protected]/FutureTask.java:317)
	at java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1144)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:642)
	at java.lang.Thread.runWith([email protected]/Thread.java:1588)
	at java.lang.Thread.run([email protected]/Thread.java:1575)

I've wrote already on a private bug report, ?SwtUtils.invokeOnDisplayThread() use is wrong in most cases and should be reworked because it uses blockingAPI Display.syncExec() and if the caller has tacking any lock before, the hang is almost guaranteed.

10 replies

jdneo Aug 4, 2025

Looks like there is some network issue from the error logs?

amardeep434 Aug 5, 2025
Author

Hi @jdneo - not is not a network problem, the code completions seem to be working fine, jus the chat window looks like this, not giving a window to type anything.
P.S: this is the nightly build.

Also, can we expect a fix in the next build of the non-nightly version? if so any idea by when?

jdneo Aug 5, 2025

If you close the chat view and reopen it again (via copilot menu), will it render correctly?

amardeep434 Aug 5, 2025
Author

@jdneo - i just restarted eclipse and it was rendered fine, seems fine to me so far on the nightly.

jdneo Aug 5, 2025

Thank you. If you have any further issues, at me to let me know.

YashSmithh · 2025-07-31T09:19:19Z

YashSmithh
Jul 31, 2025

After updating to Copilot 0.9.3, Eclipse may freeze due to plugin conflicts or auto-completion issues. Fixes include disabling Copilot, rolling back to 0.9.2, updating Eclipse to 2024-03 or newer, or turning off inline suggestions. Monitor GitHub issues for updates and potential bug fixes from the maintainers.

0 replies

mohammadamuie · 2025-08-05T07:28:02Z

mohammadamuie
Aug 5, 2025

It sounds like you're encountering a compatibility or stability issue with the GitHub Copilot for Eclipse plugin version 0.9.3 — especially since it's consistently causing Eclipse to freeze across multiple versions (2025-06 and 2024-09). Here's a structured response to address your questions:

✅ How to Capture Logs in Eclipse
You can gather logs from Eclipse using the following steps:

Open the .log file manually:

Navigate to your workspace directory (e.g., ~/eclipse-workspace/.metadata/.log).

Open the .log file with any text editor (Notepad++, VS Code, etc.).

Look for entries with severity !ENTRY and !STACK near the time Eclipse froze.

Share the relevant part in your GitHub issue.

Enable Console Logging (if you can get Eclipse to run briefly):

Add the following to your Eclipse launch config (in eclipse.ini):

diff
Copy
Edit
-consoleLog
-debug
This will print logs directly to the Eclipse console or stdout, depending on how you run it.

Use JVisualVM or jstack:

If Eclipse is freezing and not crashing, you can inspect a thread dump:

Run: jps to get the Eclipse process ID.

Then: jstack and capture the thread dump.

This can help reveal deadlocks or stuck threads (useful to share in the GitHub issue).

🔁 How to Revert Copilot Plugin to Version 0.9.2
Eclipse does not have built-in version rollback for plugins, so you’ll need to uninstall 0.9.3 and reinstall 0.9.2 manually:

Uninstall 0.9.3:
Go to: Help > About Eclipse IDE > Installation Details.

Find the GitHub Copilot plugin, select it, and click Uninstall.

Restart Eclipse.

Download and Install 0.9.2:
Go to the GitHub Copilot for Eclipse Releases page:
https://github.com/github/copilot-eclipse/releases

Find release v0.9.2 and download the .zip or update site link.

Install via:

Help > Install New Software...

Click “Add” > “Archive…” if using a .zip, or paste the update site URL.

Follow the wizard and restart Eclipse.

💡 Bonus: Disable Auto-Update for the Plugin
Once you’re back to 0.9.2, disable plugin auto-updates to avoid breaking it again:

Go to: Window > Preferences > Install/Update > Automatic Updates.

Uncheck automatic updates or exclude Copilot plugin.

🛠 Suggested Action for the GitHub Team
Since multiple users are facing this issue across different Eclipse versions, it’s a likely regression. When posting logs:

Copilot for Eclipse plugin causing eclipse to freeze(not responding) after updating the plugin to 0.9.3 #168126

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Replies: 7 comments 11 replies

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