Description Samantha Chan 2011-12-01 16:48:17 EST

I have a feature patch installed that I tried to uninstalled.

1.  Help -> About Eclipse SDK
2.  Installation Details
3.  Select feature patch, click uninstall
4.  An error dialog pops up resulted from this classcast exception.

java.lang.ClassCastException: org.eclipse.equinox.internal.p2.ui.model.InstalledIUElement incompatible with org.eclipse.equinox.internal.p2.ui.model.AvailableIUElement
	at org.eclipse.equinox.internal.p2.ui.dialogs.ResolutionStatusPage.setDetailText(ResolutionStatusPage.java:139)
	at org.eclipse.equinox.internal.p2.ui.dialogs.ResolutionResultsWizardPage$1$1.selectionChanged(ResolutionResultsWizardPage.java:124)
	at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:164)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
	at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:162)
	at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2188)
	at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1211)
	at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1241)
	at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:239)
	at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:233)
	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:403)
	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:3588)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
	at org.eclipse.jface.window.Window.open(Window.java:801)
	at org.eclipse.equinox.p2.ui.ProvisioningUI.openUninstallWizard(ProvisioningUI.java:264)
	at org.eclipse.equinox.internal.p2.ui.actions.UninstallAction.performAction(UninstallAction.java:54)
	at org.eclipse.equinox.internal.p2.ui.actions.ProfileModificationAction$1$1.run(ProfileModificationAction.java:86)
	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:3563)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3212)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	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:344)
	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:60)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
	at java.lang.reflect.Method.invoke(Method.java:611)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)