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[BUG] PyCharm Claude code plugin This method is forbidden on EDT because it does not pump the event queue #23244

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[BUG] PyCharm Claude code plugin This method is forbidden on EDT because it does not pump the event queue#23244
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area:idebugSomething isn't workingplatform:windowsIssue specifically occurs on Windows
@r7p

Description

@r7p
r7p
opened on Feb 5, 2026

Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

2026-02-04 21:16:47,952 [3833414] SEVERE - #c.i.o.progress - This method is forbidden on EDT because it does not pump the event queue. Switch to a BGT, or use com.intellij.openapi.progress.TasksKt.runWithModalProgressBlocking. 
java.lang.IllegalStateException: This method is forbidden on EDT because it does not pump the event queue. Switch to a BGT, or use com.intellij.openapi.progress.TasksKt.runWithModalProgressBlocking. 
	at com.intellij.openapi.progress.CoroutinesKt.assertBackgroundThreadAndNoWriteAction(coroutines.kt:594)
	at com.intellij.openapi.progress.CoroutinesKt.runBlockingCancellable(coroutines.kt:133)
	at com.intellij.openapi.progress.CoroutinesKt.runBlockingMaybeCancellable(coroutines.kt:197)
	at com.jetbrains.python.packaging.management.PythonPackageManager$Companion.forSdk(PythonPackageManager.kt:262)
	at com.intellij.python.pro.flask.FlaskUtilsKt.isFlaskInstalled(FlaskUtils.kt:20)
	at com.intellij.python.pro.flask.console.FlaskConsoleOptionsProvider.isApplicableTo(FlaskConsoleOptionsProvider.kt:21)
	at com.jetbrains.python.console.PyConsoleOptionsConfigurable.buildConfigurables(PyConsoleOptionsConfigurable.java:64)
	at com.intellij.openapi.options.SearchableConfigurable$Parent$Abstract.getConfigurables(SearchableConfigurable.java:72)
	at com.intellij.openapi.options.ex.ConfigurableWrapper$CompositeWrapper.getConfigurables(ConfigurableWrapper.java:330)
	at com.intellij.openapi.options.ex.EpBasedConfigurableGroupKt.collect(EpBasedConfigurableGroup.kt:148)
	at com.intellij.openapi.options.ex.EpBasedConfigurableGroupKt.collect(EpBasedConfigurableGroup.kt:157)
	at com.intellij.openapi.options.ex.EpBasedConfigurableGroupKt.access$collect(EpBasedConfigurableGroup.kt:1)
	at com.intellij.openapi.options.ex.EpBasedConfigurableGroup.<init>(EpBasedConfigurableGroup.kt:110)
	at com.intellij.openapi.options.ex.ConfigurableExtensionPointUtil.doGetConfigurableGroup(ConfigurableExtensionPointUtil.java:124)
	at com.intellij.openapi.options.ex.ConfigurableExtensionPointUtil.getConfigurableGroup(ConfigurableExtensionPointUtil.java:119)
	at com.intellij.ide.actions.ShowSettingsUtilImpl.showSettingsDialog(ShowSettingsUtilImpl.kt:233)
	at com.anthropic.code.plugin.IDENotificationUtil.showClaudeNotFoundWarning$lambda$1(IDENotificationUtil.kt:28)
	at com.intellij.notification.NotificationAction.lambda$createSimpleExpiring$3(NotificationAction.java:91)
	at com.intellij.notification.NotificationAction$Simple.actionPerformed(NotificationAction.java:142)
	at com.intellij.notification.NotificationAction.actionPerformed(NotificationAction.java:34)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.doPerformActionOrShowPopup(ActionUtil.kt:437)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.performAction$lambda$0(ActionUtil.kt:397)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.performWithActionCallbacks$lambda$0(ActionManagerImpl.kt:1164)
	at com.intellij.concurrency.ThreadContext.installThreadContext(threadContext.kt:305)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.performWithActionCallbacks(ActionManagerImpl.kt:1162)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.performAction(ActionUtil.kt:396)
	at com.intellij.openapi.fileEditor.impl.IdeUiServiceImpl.performAction(IdeUiServiceImpl.java:117)
	at com.intellij.notification.Notification.fire(Notification.java:487)
	at com.intellij.notification.impl.NotificationsManagerImpl.lambda$createAction$17(NotificationsManagerImpl.java:945)
	at com.intellij.ui.components.labels.LinkLabel.doClick(LinkLabel.java:174)
	at com.intellij.ui.components.labels.LinkLabel.doClick(LinkLabel.java:399)
	at com.intellij.ui.components.labels.LinkLabel$MyMouseHandler.mouseReleased(LinkLabel.java:372)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6679)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3394)
	at java.desktop/java.awt.Component.processEvent(Component.java:6444)
	at java.desktop/java.awt.Container.processEvent(Container.java:2266)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5049)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4877)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4963)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4577)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4518)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2823)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4877)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:783)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:728)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:98)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:755)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:753)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:752)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:664)
	at com.intellij.ide.IdeEventQueue.dispatchMouseEvent(IdeEventQueue.kt:570)
	at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$2(IdeEventQueue.kt:508)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.doRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:736)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runPreventiveWriteIntentReadAction(NestedLocksThreadingSupport.kt:710)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:508)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$0$0$0$0(IdeEventQueue.kt:337)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:901)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$0$0$0(IdeEventQueue.kt:336)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:1065)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:117)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:1065)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$0(IdeEventQueue.kt:331)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:371)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)
2026-02-04 21:16:47,963 [3833425] SEVERE - #c.i.o.progress - PyCharm 2025.3.2.1  Build #PY-253.30387.173
2026-02-04 21:16:47,963 [3833425] SEVERE - #c.i.o.progress - JDK: 21.0.9; VM: OpenJDK 64-Bit Server VM; Vendor: JetBrains s.r.o.
2026-02-04 21:16:47,963 [3833425] SEVERE - #c.i.o.progress - OS: Windows 11
2026-02-04 21:16:47,963 [3833425] SEVERE - #c.i.o.progress - Plugin to blame: Claude Code [Beta] version: 0.1.14-beta

What Should Happen?

Plugin should work without crashing

Error Messages/Logs

2026-02-04 21:16:47,952 [3833414] SEVERE - #c.i.o.progress - This method is forbidden on EDT because it does not pump the event queue. Switch to a BGT, or use com.intellij.openapi.progress.TasksKt.runWithModalProgressBlocking. 
java.lang.IllegalStateException: This method is forbidden on EDT because it does not pump the event queue. Switch to a BGT, or use com.intellij.openapi.progress.TasksKt.runWithModalProgressBlocking. 
	at com.intellij.openapi.progress.CoroutinesKt.assertBackgroundThreadAndNoWriteAction(coroutines.kt:594)
	at com.intellij.openapi.progress.CoroutinesKt.runBlockingCancellable(coroutines.kt:133)
	at com.intellij.openapi.progress.CoroutinesKt.runBlockingMaybeCancellable(coroutines.kt:197)
	at com.jetbrains.python.packaging.management.PythonPackageManager$Companion.forSdk(PythonPackageManager.kt:262)
	at com.intellij.python.pro.flask.FlaskUtilsKt.isFlaskInstalled(FlaskUtils.kt:20)
	at com.intellij.python.pro.flask.console.FlaskConsoleOptionsProvider.isApplicableTo(FlaskConsoleOptionsProvider.kt:21)
	at com.jetbrains.python.console.PyConsoleOptionsConfigurable.buildConfigurables(PyConsoleOptionsConfigurable.java:64)
	at com.intellij.openapi.options.SearchableConfigurable$Parent$Abstract.getConfigurables(SearchableConfigurable.java:72)
	at com.intellij.openapi.options.ex.ConfigurableWrapper$CompositeWrapper.getConfigurables(ConfigurableWrapper.java:330)
	at com.intellij.openapi.options.ex.EpBasedConfigurableGroupKt.collect(EpBasedConfigurableGroup.kt:148)
	at com.intellij.openapi.options.ex.EpBasedConfigurableGroupKt.collect(EpBasedConfigurableGroup.kt:157)
	at com.intellij.openapi.options.ex.EpBasedConfigurableGroupKt.access$collect(EpBasedConfigurableGroup.kt:1)
	at com.intellij.openapi.options.ex.EpBasedConfigurableGroup.<init>(EpBasedConfigurableGroup.kt:110)
	at com.intellij.openapi.options.ex.ConfigurableExtensionPointUtil.doGetConfigurableGroup(ConfigurableExtensionPointUtil.java:124)
	at com.intellij.openapi.options.ex.ConfigurableExtensionPointUtil.getConfigurableGroup(ConfigurableExtensionPointUtil.java:119)
	at com.intellij.ide.actions.ShowSettingsUtilImpl.showSettingsDialog(ShowSettingsUtilImpl.kt:233)
	at com.anthropic.code.plugin.IDENotificationUtil.showClaudeNotFoundWarning$lambda$1(IDENotificationUtil.kt:28)
	at com.intellij.notification.NotificationAction.lambda$createSimpleExpiring$3(NotificationAction.java:91)
	at com.intellij.notification.NotificationAction$Simple.actionPerformed(NotificationAction.java:142)
	at com.intellij.notification.NotificationAction.actionPerformed(NotificationAction.java:34)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.doPerformActionOrShowPopup(ActionUtil.kt:437)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.performAction$lambda$0(ActionUtil.kt:397)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.performWithActionCallbacks$lambda$0(ActionManagerImpl.kt:1164)
	at com.intellij.concurrency.ThreadContext.installThreadContext(threadContext.kt:305)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.performWithActionCallbacks(ActionManagerImpl.kt:1162)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.performAction(ActionUtil.kt:396)
	at com.intellij.openapi.fileEditor.impl.IdeUiServiceImpl.performAction(IdeUiServiceImpl.java:117)
	at com.intellij.notification.Notification.fire(Notification.java:487)
	at com.intellij.notification.impl.NotificationsManagerImpl.lambda$createAction$17(NotificationsManagerImpl.java:945)
	at com.intellij.ui.components.labels.LinkLabel.doClick(LinkLabel.java:174)
	at com.intellij.ui.components.labels.LinkLabel.doClick(LinkLabel.java:399)
	at com.intellij.ui.components.labels.LinkLabel$MyMouseHandler.mouseReleased(LinkLabel.java:372)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6679)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3394)
	at java.desktop/java.awt.Component.processEvent(Component.java:6444)
	at java.desktop/java.awt.Container.processEvent(Container.java:2266)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5049)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4877)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4963)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4577)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4518)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2823)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4877)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:783)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:728)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:98)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:755)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:753)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:752)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:664)
	at com.intellij.ide.IdeEventQueue.dispatchMouseEvent(IdeEventQueue.kt:570)
	at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$2(IdeEventQueue.kt:508)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.doRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:736)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runPreventiveWriteIntentReadAction(NestedLocksThreadingSupport.kt:710)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:508)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$0$0$0$0(IdeEventQueue.kt:337)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:901)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$0$0$0(IdeEventQueue.kt:336)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:1065)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:117)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:1065)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$0(IdeEventQueue.kt:331)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:371)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)
2026-02-04 21:16:47,963 [3833425] SEVERE - #c.i.o.progress - PyCharm 2025.3.2.1  Build #PY-253.30387.173
2026-02-04 21:16:47,963 [3833425] SEVERE - #c.i.o.progress - JDK: 21.0.9; VM: OpenJDK 64-Bit Server VM; Vendor: JetBrains s.r.o.
2026-02-04 21:16:47,963 [3833425] SEVERE - #c.i.o.progress - OS: Windows 11
2026-02-04 21:16:47,963 [3833425] SEVERE - #c.i.o.progress - Plugin to blame: Claude Code [Beta] version: 0.1.14-beta

Steps to Reproduce

can't reliably reproduce. This is plugin UI issue

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

No response

Claude Code Version

2.1.20 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

WSL (Windows Subsystem for Linux)

Additional Information

No response

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    area:idebugSomething isn't workingplatform:windowsIssue specifically occurs on Windows

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