467200 – Widget is disposed

Bug 467200 - Widget is disposed

Summary: Widget is disposed

Status:	REOPENED

Alias:	None

Product:	Platform
Classification:	Eclipse Project
Component:	UI (show other bugs)
Version:	4.5
Hardware:	PC Mac OS X

Importance:	P3 normal (vote)
Target Milestone:	---
Assignee:	Platform-UI-Inbox
QA Contact:

URL:
Whiteboard:	stalebug
Keywords:

Depends on:
Blocks:

Reported:	2015-05-13 07:45 EDT by Marc Kunze
Modified:	2021-03-08 02:38 EST (History)
CC List:	2 users (show)

See Also:

Attachments
Screenshot of the exception window (28.85 KB, image/png) 2015-05-13 07:45 EDT, Marc Kunze	no flags	Details
Partial stack trace (10.02 KB, text/plain) 2021-03-05 05:35 EST, Arthur Daussy	no flags	Details
View All Add an attachment (proposed patch, testcase, etc.)

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Description Marc Kunze

2015-05-13 07:45:03 EDT

Created attachment 253439 [details]
Screenshot of the exception window

This stacktrace happens right after switching the perspective.

!ENTRY org.eclipse.equinox.event 4 0 2015-05-13 12:42:25.719
!MESSAGE Exception while dispatching event org.osgi.service.event.Event [topic=org/eclipse/e4/ui/model/ui/ElementContainer/selectedElement/SET] to handler org.eclipse.e4.ui.internal.di.UIEventObjectSupplier$UIEventHandler@596da1c7
!STACK 0
org.eclipse.e4.core.di.InjectionException: org.eclipse.swt.SWTException: Widget is disposed
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:62)
	at org.eclipse.e4.ui.internal.di.UIEventObjectSupplier$UIEventHandler$1.run(UIEventObjectSupplier.java:56)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:187)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:156)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4721)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:218)
	at org.eclipse.e4.ui.internal.di.UIEventObjectSupplier$UIEventHandler.handleEvent(UIEventObjectSupplier.java:53)
	at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:197)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:197)
	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
	at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135)
	at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78)
	at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39)
	at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:81)
	at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:59)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
	at org.eclipse.e4.ui.model.application.ui.advanced.impl.PerspectiveStackImpl.setSelectedElement(PerspectiveStackImpl.java:135)
	at org.eclipse.e4.ui.model.application.ui.advanced.impl.PerspectiveStackImpl.setSelectedElement(PerspectiveStackImpl.java:1)
	at org.eclipse.e4.ui.workbench.addons.perspectiveswitcher.PerspectiveSwitcher$16.widgetSelected(PerspectiveSwitcher.java:622)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4188)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1467)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1490)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1475)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1279)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4031)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3658)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:236)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
Caused by: org.eclipse.swt.SWTException: Widget is disposed
	at org.eclipse.swt.SWT.error(SWT.java:4441)
	at org.eclipse.swt.SWT.error(SWT.java:4356)
	at org.eclipse.swt.SWT.error(SWT.java:4327)
	at org.eclipse.swt.widgets.Widget.error(Widget.java:783)
	at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:573)
	at org.eclipse.swt.custom.CTabItem.getControl(CTabItem.java:163)
	at org.eclipse.e4.ui.css.swt.dom.CTabFolderElement.getVisibleChildNodes(CTabFolderElement.java:158)
	at org.eclipse.e4.ui.css.core.impl.engine.AbstractCSSEngine.isVisible(AbstractCSSEngine.java:450)
	at org.eclipse.e4.ui.css.core.impl.engine.AbstractCSSEngine.applyStyles(AbstractCSSEngine.java:362)
	at org.eclipse.e4.ui.css.core.impl.engine.AbstractCSSEngine.applyStyles(AbstractCSSEngine.java:354)
	at org.eclipse.e4.ui.css.swt.engine.CSSSWTApplyStylesListener$1.handleEvent(CSSSWTApplyStylesListener.java:32)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4188)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4178)
	at org.eclipse.swt.widgets.Display.runSkin(Display.java:4145)
	at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1200)
	at org.eclipse.swt.widgets.Composite.layout(Composite.java:710)
	at org.eclipse.swt.widgets.Composite.layout(Composite.java:668)
	at org.eclipse.swt.widgets.Composite.layout(Composite.java:631)
	at org.eclipse.e4.ui.workbench.addons.minmax.MinMaxAddon.setCTFButtons(MinMaxAddon.java:509)
	at org.eclipse.e4.ui.workbench.addons.minmax.MinMaxAddon.adjustCTFButtons(MinMaxAddon.java:531)
	at org.eclipse.e4.ui.workbench.addons.minmax.MinMaxAddon.subscribeTopicSelectedElement(MinMaxAddon.java:308)
	at sun.reflect.GeneratedMethodAccessor53.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	... 50 more

!ENTRY org.eclipse.e4.ui.workbench 4 0 2015-05-13 12:43:26.373
!MESSAGE Error disposing widget for : org.eclipse.e4.ui.model.application.ui.basic.impl.PartStackImpl
!STACK 0
org.eclipse.swt.SWTException: Widget is disposed
	at org.eclipse.swt.SWT.error(SWT.java:4441)
	at org.eclipse.swt.SWT.error(SWT.java:4356)
	at org.eclipse.swt.SWT.error(SWT.java:4327)
	at org.eclipse.swt.widgets.Widget.error(Widget.java:783)
	at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:573)
	at org.eclipse.swt.widgets.Widget.removeListener(Widget.java:1369)
	at org.eclipse.swt.dnd.DropTarget.onDispose(DropTarget.java:576)
	at org.eclipse.swt.dnd.DropTarget$2.handleEvent(DropTarget.java:406)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4188)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1467)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1490)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1471)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1308)
	at org.eclipse.swt.widgets.Widget.dispose(Widget.java:671)
	at org.eclipse.swt.dnd.DropTarget$1.handleEvent(DropTarget.java:398)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4188)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1467)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1490)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1471)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1308)
	at org.eclipse.swt.widgets.Control.release(Control.java:2861)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:910)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1311)
	at org.eclipse.swt.widgets.Control.release(Control.java:2861)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:910)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1311)
	at org.eclipse.swt.widgets.Control.release(Control.java:2861)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:910)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1311)
	at org.eclipse.swt.widgets.Control.release(Control.java:2861)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:910)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1311)
	at org.eclipse.swt.widgets.Control.release(Control.java:2861)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:910)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1311)
	at org.eclipse.swt.widgets.Control.release(Control.java:2861)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:910)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1311)
	at org.eclipse.swt.widgets.Control.release(Control.java:2861)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:910)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1311)
	at org.eclipse.swt.widgets.Control.release(Control.java:2861)
	at org.eclipse.swt.widgets.Composite.releaseChildren(Composite.java:910)
	at org.eclipse.swt.widgets.Widget.release(Widget.java:1311)
	at org.eclipse.swt.widgets.Control.release(Control.java:2861)
	at org.eclipse.swt.widgets.Widget.dispose(Widget.java:671)
	at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.disposeWidget(SWTPartRenderer.java:174)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:933)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
	at org.eclipse.e4.ui.workbench.renderers.swt.ElementReferenceRenderer.disposeWidget(ElementReferenceRenderer.java:118)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:933)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:887)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:894)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:862)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:857)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:841)
	at org.eclipse.ui.internal.WorkbenchWindow.hardClose(WorkbenchWindow.java:1924)
	at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:1547)
	at org.eclipse.ui.internal.WorkbenchWindow.access$15(WorkbenchWindow.java:1514)
	at org.eclipse.ui.internal.WorkbenchWindow$10.run(WorkbenchWindow.java:1579)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1576)
	at org.eclipse.ui.internal.Workbench$14.run(Workbench.java:1155)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.Workbench.busyClose(Workbench.java:1137)
	at org.eclipse.ui.internal.Workbench.access$21(Workbench.java:1079)
	at org.eclipse.ui.internal.Workbench$19.run(Workbench.java:1410)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.Workbench.close(Workbench.java:1407)
	at org.eclipse.ui.internal.Workbench.close(Workbench.java:1380)
	at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:1543)
	at org.eclipse.ui.internal.WorkbenchWindow.access$15(WorkbenchWindow.java:1514)
	at org.eclipse.ui.internal.WorkbenchWindow$10.run(WorkbenchWindow.java:1579)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1576)
	at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1590)
	at org.eclipse.ui.internal.WorkbenchWindow$6.close(WorkbenchWindow.java:520)
	at org.eclipse.e4.ui.workbench.renderers.swt.WBWRenderer$11.shellClosed(WBWRenderer.java:564)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:98)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4188)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1467)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1490)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1475)
	at org.eclipse.swt.widgets.Shell.closeWidget(Shell.java:612)
	at org.eclipse.swt.widgets.Shell.windowShouldClose(Shell.java:2359)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5625)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
	at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:221)
	at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2105)
	at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2329)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:5691)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
	at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5128)
	at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5277)
	at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
	at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3655)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:236)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
***WARNING: Display must be created on main thread due to Cocoa restrictions.

Comment 1 Eclipse Genie

2020-03-19 14:22:29 EDT

This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. As such, we're closing this bug.

If you have further information on the current state of the bug, please add it and reopen this bug. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.

Comment 2 Arthur Daussy

2021-03-05 05:34:36 EST

I still get the same error with my E4 RCP application.

See stacktrace in attachmenet.

After a short analysis I think the problem comes from org.eclipse.e4.ui.css.swt.dom.CTabFolderElement.getVisibleChildNodes(CTabFolderElement.java:161)

I think that a isDisposed check should be done on "folder.getItem(selected)" result before "item.getControl()"

I reproduce this error quite easily on my product. Please contact me after a possible correction to check if its fixes the problem.

Versions:

* org.eclipse.e4.ui.css.core_0.12.800.v20190805-1157
* org.eclipse.e4.ui.css.swt.theme_0.12.400.v20190812-0413.jar
* org.eclipse.e4.ui.css.swt_0.13.600.v20190805-1157.jar

On windows 10.

Comment 3 Arthur Daussy

2021-03-05 05:35:18 EST

Created attachment 285740 [details]
Partial stack trace

Comment 4 Wim Jongman

2021-03-05 15:00:54 EST

(In reply to Arthur Daussy from comment #2)

> 
> I reproduce this error quite easily 

Can you provide a patch or can you provide a short plugin that demonstrates the issue?

Comment 5 Arthur Daussy

2021-03-08 02:38:15 EST

A patch to fix the (/workaournd) the problem yes.

Having a patch to reproduce could be harder.

I'm going to try and keep you posted if I succeed.