446203 – JavaEditor.showBreadcrumb accesses disposed widgets (err_grp: e462692a)

Bug 446203 - JavaEditor.showBreadcrumb accesses disposed widgets (err_grp: e462692a)

Summary: JavaEditor.showBreadcrumb accesses disposed widgets (err_grp: e462692a)

Status:	REOPENED

Alias:	None

Product:	JDT
Classification:	Eclipse Project
Component:	UI (show other bugs)
Version:	4.4
Hardware:	All All

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

URL:
Whiteboard:	stalebug
Keywords:	needinfo

Duplicates (4):	444270 446205 446348 468924 (view as bug list)
Depends on:
Blocks:

Reported:	2014-10-07 14:09 EDT by EPP Error Reports
Modified:	2022-09-20 17:16 EDT (History)
CC List:	10 users (show)

See Also:

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Description EPP Error Reports

2014-10-07 14:09:08 EDT

Hello committers,

we received a new error report for Eclipse 4.4.1.M20140925-0400.


General Information:
    anonymous-id:         296de9fd-8607-4c9b-9e75-eb0223c847a5
    eclipse-build-id:     4.4.1.M20140925-0400
    eclipse-product:      org.eclipse.epp.package.rcp.product
    operating system:     Windows7 6.1.0 (x86) - win32
    java-runtime-version: 1.8.0_11-b12

The following plug-ins were present on the execution stack (*):
    1. org.eclipse.core.databinding.observable_1.4.1.v20140210-1835
    2. org.eclipse.core.databinding_1.4.2.v20140729-1044
    3. org.eclipse.core.runtime_3.10.0.v20140318-2214
    4. org.eclipse.e4.ui.services_1.1.0.v20140328-1925
    5. org.eclipse.e4.ui.workbench_1.2.1.v20140901-1244
    6. org.eclipse.e4.ui.workbench.swt_0.12.100.v20140530-1436
    7. org.eclipse.emf.common_2.10.1.v20140901-1043
    8. org.eclipse.equinox.app_1.3.200.v20130910-1609
    9. org.eclipse.equinox.event_1.3.100.v20140115-1647
    10. org.eclipse.equinox.launcher_1.3.0.v20140415-2008
    11. org.eclipse.jdt.ui_3.10.1.v20140817-1500
    12. org.eclipse.jdt_3.10.0.v20140925-0400
    13. org.eclipse.osgi_3.10.1.v20140909-1633
    14. org.eclipse.swt_3.103.1.v20140903-1938
    15. org.eclipse.ui_3.106.0.v20140812-1751
    16. org.eclipse.ui.ide.application_1.0.500.v20140514-2033
    17. org.eclipse.ui.ide_3.10.1.v20140828-0944


Error Status:

    code:                   2
    plugin:                 org.eclipse.ui.workbench_3.106.1.v20140827-1737
    message:                Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
    fingerprint:            e462692a
    exception class:        org.eclipse.swt.SWTException
    exception message:      Widget is disposed
    number of children:     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:476)
    at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:348)
    at org.eclipse.swt.widgets.Composite.getChildren(Composite.java:451)
    at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.showBreadcrumb(JavaEditor.java:1992)
    at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.handlePreferenceStoreChanged(JavaEditor.java:2904)
    at org.eclipse.ui.texteditor.AbstractTextEditor$PropertyChangeListener.propertyChange(AbstractTextEditor.java:715)
    at org.eclipse.ui.texteditor.ChainedPreferenceStore.firePropertyChangeEvent(ChainedPreferenceStore.java:164)
    at org.eclipse.ui.texteditor.ChainedPreferenceStore.handlePropertyChangeEvent(ChainedPreferenceStore.java:431)
    at org.eclipse.ui.texteditor.ChainedPreferenceStore.access$0(ChainedPreferenceStore.java:408)
    at org.eclipse.ui.texteditor.ChainedPreferenceStore$PropertyChangeListener.propertyChange(ChainedPreferenceStore.java:69)
    at org.eclipse.ui.preferences.ScopedPreferenceStore$3.run(ScopedPreferenceStore.java:382)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.ui.preferences.ScopedPreferenceStore.firePropertyChangeEvent(ScopedPreferenceStore.java:378)
    at org.eclipse.jdt.internal.ui.javaeditor.ToggleBreadcrumbAction.perspectiveActivated(ToggleBreadcrumbAction.java:133)
    at org.eclipse.ui.internal.PerspectiveListenerList$1.run(PerspectiveListenerList.java:75)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at org.eclipse.core.runtime.Platform.run(Platform.java:867)
    at org.eclipse.ui.internal.PerspectiveListenerList.fireEvent(PerspectiveListenerList.java:58)
    at org.eclipse.ui.internal.PerspectiveListenerList.firePerspectiveActivated(PerspectiveListenerList.java:72)
    at org.eclipse.ui.internal.WorkbenchWindow.firePerspectiveActivated(WorkbenchWindow.java:1683)
    at org.eclipse.ui.internal.WorkbenchPage$4.handleEvent(WorkbenchPage.java:2958)
    at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)
    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:4734)
    at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:218)
    at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)
    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:4353)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
    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:380)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(null:-2)
    at sun.reflect.NativeMethodAccessorImpl.invoke(null:-1)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(null:-1)
    at java.lang.reflect.Method.invoke(null:-1)
    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)
   

    

Messages, stacktraces, and nested status objects may be shortened. Please visit 
http://dev.eclipse.org/recommenders/committers/confess/0.5/reports/54342c45e4b00f2b25241958
for the complete error log.


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3. Use the following resolutions for the following situations:
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* Note: The list of present bundles and their respective versions was
  calculated by package naming heuristics. This may or may not reflect reality.

Comment 1 Marcel Bruch

2014-10-07 14:21:53 EDT

This one might be tricky to reproduce but is well localized I think. Sending to JDT UI for comment.

Comment 2 Noopur Gupta

2014-10-08 03:24:49 EDT

*** Bug 444270 has been marked as a duplicate of this bug. ***

Comment 3 Marcel Bruch

2014-10-08 12:53:09 EDT

*** Bug 446348 has been marked as a duplicate of this bug. ***

Comment 4 Marcel Bruch

2014-10-08 17:06:25 EDT

*** Bug 446205 has been marked as a duplicate of this bug. ***

Comment 5 Markus Keller

2014-10-27 11:45:45 EDT

I don't see how this could happen. We'd need steps to reproduce or a least some more information. E.g.:
- Do you work with multiple windows?
- In which perspectives do you have breadcrumbs enabled? See the "Toggle Breadcrumb" item in the toolbar (with the black triangle that points rightwards).
- Does it happen after you had trouble opening a Java editor?
- Are there other entries in the log around the same time?

Comment 6 Stuart Stephen

2014-10-27 11:58:18 EDT

- Do you work with multiple windows?

I have in the past. Sometimes I want to view two sources fullscreen, I have two screens, so I pull a source from the editor area using the tab with the filename and drag it to the other screen.

- In which perspectives do you have breadcrumbs enabled? See the "Toggle Breadcrumb" item in the toolbar (with the black triangle that points rightwards).

Breadcrumb is enabled in "Java", but not "Debug" or "Synchronize". I get the error switching from or to any breadcrumb enabled perspective. Switching between "Debug" and "Synchronize" does not create the error.

I enabled the breadcrumb in Debug perspective and it gave the widget is disposed error straight away.

- Does it happen after you had trouble opening a Java editor?

No, it works for a while when Eclipse is opened fresh, but after some time something happens which then means the error occurs every single time I switch perspectives.

- Are there other entries in the log around the same time?

I can't see any.

Comment 7 Stuart Stephen

2014-10-27 12:13:56 EDT

Are there any files from the workspace (.metadata) that might help with understanding the scenario?

Comment 8 Markus Keller

2014-11-05 06:13:54 EST

(In reply to Stuart Stephen from comment #7)
> Are there any files from the workspace (.metadata) that might help with
> understanding the scenario?

Only the .log file. Look out for entries that contain "dispose".

The problem is that an editor didn't get closed properly, so it still listens to property changes (like enabling/disabling the breadcrumb), although its widget has already been disposed. That shouldn't ever happen.

I've added better logging, so that we at least know which editor is causing trouble: http://git.eclipse.org/c/jdt/eclipse.jdt.ui.git/commit/?id=5cde7c73efc4b4a9dcced6a9cb5dfa34c15d29a8

Starting from the next I-build, it will write this to the log:

org.eclipse.swt.SWTException: Widget is disposed. Editor not properly disposed; please report scenario to <https://bugs.eclipse.org/446203>. Editor input: [Working copy] Try18.java [in xy [in src [in zz1.8]]]

Comment 9 Noopur Gupta

2015-06-01 04:27:18 EDT

*** Bug 468924 has been marked as a duplicate of this bug. ***

Comment 10 Aurelien Pupier

2016-01-29 08:45:01 EST

I encounter the issue. it happens when swithcing from perspective. here is the new log:
!ENTRY org.eclipse.ui.workbench 4 2 2016-01-29 14:39:45.470
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
org.eclipse.swt.SWTException: Widget is disposed
	at org.eclipse.swt.SWT.error(SWT.java:4491)
	at org.eclipse.swt.SWT.error(SWT.java:4406)
	at org.eclipse.swt.SWT.error(SWT.java:4377)
	at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
	at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:354)
	at org.eclipse.swt.widgets.Control.getLayoutData(Control.java:1395)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.hideBreadcrumb(JavaEditor.java:2020)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.handlePreferenceStoreChanged(JavaEditor.java:2912)
	at org.eclipse.ui.texteditor.AbstractTextEditor$PropertyChangeListener.propertyChange(AbstractTextEditor.java:715)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.firePropertyChangeEvent(ChainedPreferenceStore.java:164)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.handlePropertyChangeEvent(ChainedPreferenceStore.java:431)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.access$0(ChainedPreferenceStore.java:408)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore$PropertyChangeListener.propertyChange(ChainedPreferenceStore.java:69)
	at org.eclipse.ui.preferences.ScopedPreferenceStore$3.run(ScopedPreferenceStore.java:351)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.preferences.ScopedPreferenceStore.firePropertyChangeEvent(ScopedPreferenceStore.java:347)
	at org.eclipse.jdt.internal.ui.javaeditor.ToggleBreadcrumbAction.perspectiveActivated(ToggleBreadcrumbAction.java:133)
	at org.eclipse.ui.internal.PerspectiveListenerList$1.run(PerspectiveListenerList.java:75)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.PerspectiveListenerList.fireEvent(PerspectiveListenerList.java:58)
	at org.eclipse.ui.internal.PerspectiveListenerList.firePerspectiveActivated(PerspectiveListenerList.java:72)
	at org.eclipse.ui.internal.WorkbenchWindow.firePerspectiveActivated(WorkbenchWindow.java:1694)
	at org.eclipse.ui.internal.WorkbenchPage$4.handleEvent(WorkbenchPage.java:2982)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:186)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:145)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4761)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:211)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)
	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:85)
	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.ui.internal.WorkbenchPage.setPerspective(WorkbenchPage.java:4010)
	at org.eclipse.ui.internal.Workbench.activate(Workbench.java:3084)
	at org.eclipse.ui.internal.Workbench.showPerspective(Workbench.java:3106)
	at org.eclipse.ui.internal.Workbench.showPerspective(Workbench.java:3073)
	at org.eclipse.debug.internal.ui.launchConfigurations.PerspectiveManager.switchToPerspective(PerspectiveManager.java:390)
	at org.eclipse.debug.internal.ui.launchConfigurations.PerspectiveManager$4.runInUIThread(PerspectiveManager.java:471)
	at org.eclipse.debug.internal.ui.launchConfigurations.PerspectiveManager$MyUIJob$1.run(PerspectiveManager.java:229)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4155)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3772)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
	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:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1488)

!ENTRY org.eclipse.ui.workbench 4 2 2016-01-29 14:39:45.504
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
org.eclipse.swt.SWTException: Widget is disposed
	at org.eclipse.swt.SWT.error(SWT.java:4491)
	at org.eclipse.swt.SWT.error(SWT.java:4406)
	at org.eclipse.swt.SWT.error(SWT.java:4377)
	at org.eclipse.swt.widgets.Widget.error(Widget.java:482)
	at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:354)
	at org.eclipse.swt.widgets.Control.getLayoutData(Control.java:1395)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.hideBreadcrumb(JavaEditor.java:2020)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.handlePreferenceStoreChanged(JavaEditor.java:2912)
	at org.eclipse.ui.texteditor.AbstractTextEditor$PropertyChangeListener.propertyChange(AbstractTextEditor.java:715)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.firePropertyChangeEvent(ChainedPreferenceStore.java:164)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.handlePropertyChangeEvent(ChainedPreferenceStore.java:431)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.access$0(ChainedPreferenceStore.java:408)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore$PropertyChangeListener.propertyChange(ChainedPreferenceStore.java:69)
	at org.eclipse.ui.preferences.ScopedPreferenceStore$3.run(ScopedPreferenceStore.java:351)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.preferences.ScopedPreferenceStore.firePropertyChangeEvent(ScopedPreferenceStore.java:347)
	at org.eclipse.jdt.internal.ui.javaeditor.ToggleBreadcrumbAction.perspectiveActivated(ToggleBreadcrumbAction.java:133)
	at org.eclipse.ui.internal.PerspectiveListenerList$1.run(PerspectiveListenerList.java:75)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.PerspectiveListenerList.fireEvent(PerspectiveListenerList.java:58)
	at org.eclipse.ui.internal.PerspectiveListenerList.firePerspectiveActivated(PerspectiveListenerList.java:72)
	at org.eclipse.ui.internal.WorkbenchWindow.firePerspectiveActivated(WorkbenchWindow.java:1694)
	at org.eclipse.ui.internal.WorkbenchPage$4.handleEvent(WorkbenchPage.java:2982)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:186)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:145)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4761)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:211)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)
	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:85)
	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.ui.internal.WorkbenchPage.setPerspective(WorkbenchPage.java:4010)
	at org.eclipse.ui.internal.Workbench.activate(Workbench.java:3084)
	at org.eclipse.ui.internal.Workbench.showPerspective(Workbench.java:3106)
	at org.eclipse.ui.internal.Workbench.showPerspective(Workbench.java:3073)
	at org.eclipse.debug.internal.ui.launchConfigurations.PerspectiveManager.switchToPerspective(PerspectiveManager.java:390)
	at org.eclipse.debug.internal.ui.launchConfigurations.PerspectiveManager$4.runInUIThread(PerspectiveManager.java:471)
	at org.eclipse.debug.internal.ui.launchConfigurations.PerspectiveManager$MyUIJob$1.run(PerspectiveManager.java:229)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4155)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3772)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
	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:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1488)

!ENTRY org.eclipse.ui.workbench 4 2 2016-01-29 14:40:34.252
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
org.eclipse.swt.SWTException: Widget is disposed. Editor not properly disposed; please report scenario to <https://bugs.eclipse.org/446203>. Editor input: MethodRoadie.class (not open) [in org.junit.internal.runners [in C:\ws\FuseTooling\.metadata\.plugins\org.eclipse.pde.core\.external_libraries\org.junit_4.12.0.v201504281640\junit.jar]]
	at org.eclipse.swt.SWT.error(SWT.java:4491)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.showBreadcrumb(JavaEditor.java:1994)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.handlePreferenceStoreChanged(JavaEditor.java:2910)
	at org.eclipse.ui.texteditor.AbstractTextEditor$PropertyChangeListener.propertyChange(AbstractTextEditor.java:715)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.firePropertyChangeEvent(ChainedPreferenceStore.java:164)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.handlePropertyChangeEvent(ChainedPreferenceStore.java:431)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.access$0(ChainedPreferenceStore.java:408)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore$PropertyChangeListener.propertyChange(ChainedPreferenceStore.java:69)
	at org.eclipse.ui.preferences.ScopedPreferenceStore$3.run(ScopedPreferenceStore.java:351)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.preferences.ScopedPreferenceStore.firePropertyChangeEvent(ScopedPreferenceStore.java:347)
	at org.eclipse.jdt.internal.ui.javaeditor.ToggleBreadcrumbAction.perspectiveActivated(ToggleBreadcrumbAction.java:133)
	at org.eclipse.ui.internal.PerspectiveListenerList$1.run(PerspectiveListenerList.java:75)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.PerspectiveListenerList.fireEvent(PerspectiveListenerList.java:58)
	at org.eclipse.ui.internal.PerspectiveListenerList.firePerspectiveActivated(PerspectiveListenerList.java:72)
	at org.eclipse.ui.internal.WorkbenchWindow.firePerspectiveActivated(WorkbenchWindow.java:1694)
	at org.eclipse.ui.internal.WorkbenchPage$4.handleEvent(WorkbenchPage.java:2982)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:186)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:145)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4761)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:211)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)
	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:85)
	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$12.widgetSelected(PerspectiveSwitcher.java:590)
	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:4362)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
	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:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1488)

!ENTRY org.eclipse.ui.workbench 4 2 2016-01-29 14:40:34.290
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
org.eclipse.swt.SWTException: Widget is disposed. Editor not properly disposed; please report scenario to <https://bugs.eclipse.org/446203>. Editor input: SchemaDocument.class [in org.apache.xmlbeans.impl.xb.xsdschema [in C:\Data\TP\org.fusesource.ide.targetplatform.target.repo-Mars\plugins\org.apache.xmlbeans_2.3.0.v201405241900.jar]]
  interface SchemaDocument
	at org.eclipse.swt.SWT.error(SWT.java:4491)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.showBreadcrumb(JavaEditor.java:1994)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.handlePreferenceStoreChanged(JavaEditor.java:2910)
	at org.eclipse.ui.texteditor.AbstractTextEditor$PropertyChangeListener.propertyChange(AbstractTextEditor.java:715)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.firePropertyChangeEvent(ChainedPreferenceStore.java:164)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.handlePropertyChangeEvent(ChainedPreferenceStore.java:431)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.access$0(ChainedPreferenceStore.java:408)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore$PropertyChangeListener.propertyChange(ChainedPreferenceStore.java:69)
	at org.eclipse.ui.preferences.ScopedPreferenceStore$3.run(ScopedPreferenceStore.java:351)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.preferences.ScopedPreferenceStore.firePropertyChangeEvent(ScopedPreferenceStore.java:347)
	at org.eclipse.jdt.internal.ui.javaeditor.ToggleBreadcrumbAction.perspectiveActivated(ToggleBreadcrumbAction.java:133)
	at org.eclipse.ui.internal.PerspectiveListenerList$1.run(PerspectiveListenerList.java:75)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.PerspectiveListenerList.fireEvent(PerspectiveListenerList.java:58)
	at org.eclipse.ui.internal.PerspectiveListenerList.firePerspectiveActivated(PerspectiveListenerList.java:72)
	at org.eclipse.ui.internal.WorkbenchWindow.firePerspectiveActivated(WorkbenchWindow.java:1694)
	at org.eclipse.ui.internal.WorkbenchPage$4.handleEvent(WorkbenchPage.java:2982)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:186)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:145)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4761)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:211)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)
	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:85)
	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$12.widgetSelected(PerspectiveSwitcher.java:590)
	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:4362)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
	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:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1488)

Comment 11 Bogdan Zlatanov

2016-02-16 09:52:08 EST

I also started to encounter this issue when switching between perspectives. Please, find the details below:

"Problem Occurred" dialog message:

Error notifying a preference change listener. Check the log for details.
Widget is disposed. Editor not properly disposed; please report scenario to <https://bugs.eclipse.org/446203>. Editor input: CollectionUtils.class [in org.springframework.cglib.core [in /Users/bzlatanov/.m2/repository/org/springframework/spring-core/4.2.1.RELEASE/spring-core-4.2.1.RELEASE.jar]]
  class CollectionUtils


"Event Details" dialog from "Error Log":

- Message: Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".

- Session Data:
  eclipse.buildId=3.7.2.201511261048-RELEASE-e45
  java.version=1.8.0_72
  java.vendor=Oracle Corporation
  BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US
  Framework arguments:  -product org.springsource.sts.ide -keyring /Users/user/.eclipse_keyring -showlocation
  Command-line arguments:  -os macosx -ws cocoa -arch x86_64 -product org.springsource.sts.ide -keyring /Users/user/.eclipse_keyring -showlocation

  Created Time: 2016-02-10 17:38:13.737

- Exception Stack Trace:

org.eclipse.swt.SWTException: Widget is disposed. Editor not properly disposed; please report scenario to <https://bugs.eclipse.org/446203>. Editor input: CollectionUtils.class [in org.springframework.cglib.core [in /Users/user/.m2/repository/org/springframework/spring-core/4.2.1.RELEASE/spring-core-4.2.1.RELEASE.jar]]
  class CollectionUtils
	at org.eclipse.swt.SWT.error(SWT.java:4491)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.showBreadcrumb(JavaEditor.java:1994)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.handlePreferenceStoreChanged(JavaEditor.java:2910)
	at org.eclipse.ui.texteditor.AbstractTextEditor$PropertyChangeListener.propertyChange(AbstractTextEditor.java:715)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.firePropertyChangeEvent(ChainedPreferenceStore.java:164)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.handlePropertyChangeEvent(ChainedPreferenceStore.java:431)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.access$0(ChainedPreferenceStore.java:408)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore$PropertyChangeListener.propertyChange(ChainedPreferenceStore.java:69)
	at org.eclipse.ui.preferences.ScopedPreferenceStore$3.run(ScopedPreferenceStore.java:351)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.preferences.ScopedPreferenceStore.firePropertyChangeEvent(ScopedPreferenceStore.java:347)
	at org.eclipse.jdt.internal.ui.javaeditor.ToggleBreadcrumbAction.perspectiveActivated(ToggleBreadcrumbAction.java:133)
	at org.eclipse.ui.internal.PerspectiveListenerList$1.run(PerspectiveListenerList.java:75)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.PerspectiveListenerList.fireEvent(PerspectiveListenerList.java:58)
	at org.eclipse.ui.internal.PerspectiveListenerList.firePerspectiveActivated(PerspectiveListenerList.java:72)
	at org.eclipse.ui.internal.WorkbenchWindow.firePerspectiveActivated(WorkbenchWindow.java:1694)
	at org.eclipse.ui.internal.WorkbenchPage$4.handleEvent(WorkbenchPage.java:2982)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:186)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:145)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4781)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:211)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)
	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:85)
	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$12.widgetSelected(PerspectiveSwitcher.java:590)
	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:4230)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1499)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1299)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3698)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
	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:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1515)

Comment 12 Dani Megert

2016-02-16 10:17:40 EST

Can you provide steps to reproduce it? Switching perspectives using http://download.eclipse.org/eclipse/downloads/drops4/S-4.6M5-201601282000/ does not give me the error.

Comment 13 Bogdan Zlatanov

2016-02-19 06:15:15 EST

(In reply to Dani Megert from comment #12)
> Can you provide steps to reproduce it? Switching perspectives using
> http://download.eclipse.org/eclipse/downloads/drops4/S-4.6M5-201601282000/
> does not give me the error.

I started experiencing this issue out of the blue on the 16.02.2016. Ever since it's constantly showing up when I switch between Debug and Java perspectives. In between those, I sometimes get a widget dispose failures with nothing more but a "NullPointerException" message. 

I'm actually using STS 3.7.2 and this error shows up while I'm debugging Spring MVC applications. I'll have more time for this during the weekend and will do my best to provide you with solid steps to reproduce.

Comment 14 Łukasz Bąk

2016-04-08 08:13:14 EDT

Encountered the same issue in Eclipse 4.5.2. Each time I've switched between perspectives - if exactly one of them (either the "switched from", or the "switched to") had an editor window with breadcrumb switched on - I've got two instances of this error, for two different classes (javax.faces.model.SelectItem and javax.faces.component.UICommand, stacktraces below). What those classes have in common is that I've had them opened at some point with JD eclipse plugin. Also, though I'm not 100% sure, eclipse might've closed unexpectedly when those two were open, due to unrelated reasons. Unfortunately, the problem had since disappeared as suddenly as it appeared and I'm no longer able to reproduce it.

eclipse.buildId=4.5.2.M20160212-1500
java.version=1.8.0_66-internal
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments:  -showlocation -product org.eclipse.epp.package.jee.product
Command-line arguments:  -os linux -ws gtk -arch x86_64 -showlocation -product org.eclipse.epp.package.jee.product

!ENTRY org.eclipse.ui.workbench 4 2 2016-04-08 12:18:44.111
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
org.eclipse.swt.SWTException: Widget is disposed. Editor not properly disposed; please report scenario to <https://bugs.eclipse.org/446203>. Editor input: SelectItem.class (not open) [in javax.faces.model [in /home/lbak/Development/jboss-6.1.0.Final/server/default/deployers/jsf.deployer/Mojarra-2.0/jsf-libs/jsf-api-2.0.3-b05.jar]]
	at org.eclipse.swt.SWT.error(SWT.java:4491)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.showBreadcrumb(JavaEditor.java:1994)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.handlePreferenceStoreChanged(JavaEditor.java:2910)
	at org.eclipse.ui.texteditor.AbstractTextEditor$PropertyChangeListener.propertyChange(AbstractTextEditor.java:715)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.firePropertyChangeEvent(ChainedPreferenceStore.java:164)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.handlePropertyChangeEvent(ChainedPreferenceStore.java:431)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.access$0(ChainedPreferenceStore.java:408)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore$PropertyChangeListener.propertyChange(ChainedPreferenceStore.java:69)
	at org.eclipse.ui.preferences.ScopedPreferenceStore$3.run(ScopedPreferenceStore.java:351)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.preferences.ScopedPreferenceStore.firePropertyChangeEvent(ScopedPreferenceStore.java:347)
	at org.eclipse.jdt.internal.ui.javaeditor.ToggleBreadcrumbAction.perspectiveActivated(ToggleBreadcrumbAction.java:133)
	at org.eclipse.ui.internal.PerspectiveListenerList$1.run(PerspectiveListenerList.java:75)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.PerspectiveListenerList.fireEvent(PerspectiveListenerList.java:58)
	at org.eclipse.ui.internal.PerspectiveListenerList.firePerspectiveActivated(PerspectiveListenerList.java:72)
	at org.eclipse.ui.internal.WorkbenchWindow.firePerspectiveActivated(WorkbenchWindow.java:1719)
	at org.eclipse.ui.internal.WorkbenchPage$4.handleEvent(WorkbenchPage.java:3000)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:186)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:145)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4633)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:211)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)
	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:85)
	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$12.widgetSelected(PerspectiveSwitcher.java:590)
	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:4481)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1329)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3819)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3430)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
	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:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1488)

!ENTRY org.eclipse.ui.workbench 4 2 2016-04-08 12:18:44.125
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
org.eclipse.swt.SWTException: Widget is disposed. Editor not properly disposed; please report scenario to <https://bugs.eclipse.org/446203>. Editor input: UICommand.class [in javax.faces.component [in /home/lbak/Development/jboss-6.1.0.Final/server/default/deployers/jsf.deployer/Mojarra-2.0/jsf-libs/jsf-api-2.0.3-b05.jar]]
  class UICommand
	at org.eclipse.swt.SWT.error(SWT.java:4491)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.showBreadcrumb(JavaEditor.java:1994)
	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.handlePreferenceStoreChanged(JavaEditor.java:2910)
	at org.eclipse.ui.texteditor.AbstractTextEditor$PropertyChangeListener.propertyChange(AbstractTextEditor.java:715)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.firePropertyChangeEvent(ChainedPreferenceStore.java:164)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.handlePropertyChangeEvent(ChainedPreferenceStore.java:431)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore.access$0(ChainedPreferenceStore.java:408)
	at org.eclipse.ui.texteditor.ChainedPreferenceStore$PropertyChangeListener.propertyChange(ChainedPreferenceStore.java:69)
	at org.eclipse.ui.preferences.ScopedPreferenceStore$3.run(ScopedPreferenceStore.java:351)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.preferences.ScopedPreferenceStore.firePropertyChangeEvent(ScopedPreferenceStore.java:347)
	at org.eclipse.jdt.internal.ui.javaeditor.ToggleBreadcrumbAction.perspectiveActivated(ToggleBreadcrumbAction.java:133)
	at org.eclipse.ui.internal.PerspectiveListenerList$1.run(PerspectiveListenerList.java:75)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.PerspectiveListenerList.fireEvent(PerspectiveListenerList.java:58)
	at org.eclipse.ui.internal.PerspectiveListenerList.firePerspectiveActivated(PerspectiveListenerList.java:72)
	at org.eclipse.ui.internal.WorkbenchWindow.firePerspectiveActivated(WorkbenchWindow.java:1719)
	at org.eclipse.ui.internal.WorkbenchPage$4.handleEvent(WorkbenchPage.java:3000)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:186)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:145)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4633)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:211)
	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)
	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:85)
	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$12.widgetSelected(PerspectiveSwitcher.java:590)
	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:4481)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1329)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3819)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3430)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:694)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:606)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139)
	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:380)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1488)

Comment 15 Warren Goldman

2017-04-13 13:16:38 EDT

Error notifying a preference change listener. Check the log for details.
Widget is disposed. Editor not properly disposed; please report scenario to <https://bugs.eclipse.org/446203>. Editor input: NativeMethodAccessorImpl.class [in sun.reflect [in C:\pace\tools\Java\jdk1.8.0_77\jre\lib\rt.jar]]
  class NativeMethodAccessorImpl

Comment 16 Cezar Oliveira

2018-09-28 09:58:55 EDT

Error notifying a preference change listener. Check the log for details.
Widget is disposed. Editor not properly disposed; please report scenario to <https://bugs.eclipse.org/446203>. Editor input: SituacaoContribuinteModel.class (not open) [in gov.sefmg.sicaf.inscricaoestadual.contribuinte.model [in C:\Ambiente\repositorio\DES\gov\sefmg\inscestadual-client\13.9.31\inscestadual-client-13.9.31.jar]]

I see that it happened after open a class file (*.class) with a plugin that show me the code.

The plugin is http://jd.benow.ca/

Comment 17 Eclipse Genie

2020-09-19 11:48:02 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.

If you have further information on the current state of the bug, please add it. 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 18 Eclipse Genie

2022-09-20 17:16:37 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.

If you have further information on the current state of the bug, please add it. 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.