Description Robert Munteanu 2010-08-17 18:22:37 EDT

What steps will reproduce the problem?
1. Activate a task
2. Open a couple of PDT editors
3. Deactivate the task


-- Error Details --
Date: Wed Aug 18 01:00:39 EEST 2010
Message: Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
Severity: Error
Product: Eclipse Platform 3.6.0.v201006080911 (org.eclipse.platform.ide)
Plugin: org.eclipse.ui.workbench
Session Data:
eclipse.buildId=I20100608-0911
java.version=1.6.0_20
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Command-line arguments:  -os linux -ws gtk -arch x86


Exception Stack Trace:
java.lang.ClassCastException: java.lang.Object cannot be cast to org.eclipse.jface.viewers.ISelection
	at org.eclipse.egit.ui.internal.actions.RepositoryActionHandler.getSelection(RepositoryActionHandler.java:192)
	at org.eclipse.egit.ui.internal.actions.CompareWithRevisionActionHandler.isEnabled(CompareWithRevisionActionHandler.java:41)
	at org.eclipse.egit.ui.internal.actions.RepositoryAction.isEnabled(RepositoryAction.java:128)
	at org.eclipse.egit.ui.internal.actions.RepositoryAction.selectionChanged(RepositoryAction.java:105)
	at org.eclipse.ui.internal.PluginAction.refreshEnablement(PluginAction.java:206)
	at org.eclipse.ui.internal.PluginAction.selectionChanged(PluginAction.java:277)
	at org.eclipse.ui.internal.ObjectPluginAction.partClosed(ObjectPluginAction.java:49)
	at org.eclipse.ui.internal.PartListenerList2$3.run(PartListenerList2.java:100)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.runtime.Platform.run(Platform.java:888)
	at org.eclipse.ui.internal.PartListenerList2.fireEvent(PartListenerList2.java:55)
	at org.eclipse.ui.internal.PartListenerList2.firePartClosed(PartListenerList2.java:98)
	at org.eclipse.ui.internal.PartService.firePartClosed(PartService.java:227)
	at org.eclipse.ui.internal.WorkbenchPagePartList.firePartClosed(WorkbenchPagePartList.java:39)
	at org.eclipse.ui.internal.PartList.partClosed(PartList.java:274)
	at org.eclipse.ui.internal.PartList.removePart(PartList.java:186)
	at org.eclipse.ui.internal.WorkbenchPage.disposePart(WorkbenchPage.java:1720)
	at org.eclipse.ui.internal.WorkbenchPage.handleDeferredEvents(WorkbenchPage.java:1426)
	at org.eclipse.ui.internal.WorkbenchPage.deferUpdates(WorkbenchPage.java:1410)
	at org.eclipse.ui.internal.WorkbenchPage.closeEditors(WorkbenchPage.java:1384)
	at org.eclipse.mylyn.internal.context.ui.ContextEditorManager.closeAllEditors(ContextEditorManager.java:396)
	at org.eclipse.mylyn.internal.context.ui.ContextEditorManager.closeEditorsAndSaveMemento(ContextEditorManager.java:270)
	at org.eclipse.mylyn.internal.context.ui.ContextEditorManager.contextChanged(ContextEditorManager.java:99)
	at org.eclipse.mylyn.internal.context.core.InteractionContextManager$4.run(InteractionContextManager.java:444)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.mylyn.internal.context.core.InteractionContextManager.deactivateContext(InteractionContextManager.java:434)
	at org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin$1.taskDeactivated(TasksUiPlugin.java:262)
	at org.eclipse.mylyn.internal.tasks.core.TaskActivityManager.deactivateTask(TaskActivityManager.java:462)
	at org.eclipse.mylyn.internal.tasks.ui.actions.ToggleTaskActivationAction.run(ToggleTaskActivationAction.java:66)
	at org.eclipse.mylyn.tasks.ui.editors.TaskEditor$14.run(TaskEditor.java:957)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
	at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:452)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3552)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3171)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1407)