Description Remy Suen 2010-08-24 10:07:28 EDT

1. Window > Open Perspective > Debug
2. Window > Open Perspective > Java
3. Window > Close Perspective
4. Window > Close Perspective
5. Shutdown. NPEs will be thrown for parts that are not in the 'Debug' perspective like the 'Package Explorer'. We expect the 'Package Explorer' to have been deconstructed when the 'Java' perspective was closed in step 3 because it is not in the 'Debug' perspective since there should have been zero references to it remaining.

java.lang.NullPointerException
	at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart.dispose(PackageExplorerPart.java:451)
	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.invalidate(CompatibilityPart.java:129)
	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.destroy(CompatibilityPart.java:236)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:618)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:52)
	at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:796)
	at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:776)
	at org.eclipse.e4.core.internal.di.InjectorImpl.uninject(InjectorImpl.java:163)
	at org.eclipse.e4.core.internal.di.InjectorImpl.disposed(InjectorImpl.java:327)
	at org.eclipse.e4.core.internal.di.Requestor.disposed(Requestor.java:112)
	at org.eclipse.e4.core.internal.contexts.ContextObjectSupplier$ContextInjectionListener.update(ContextObjectSupplier.java:59)
	at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:90)
	at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.doHandleInvalid(TrackableComputationExt.java:53)
	at org.eclipse.e4.core.internal.contexts.Computation.handleInvalid(Computation.java:59)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.dispose(EclipseContext.java:196)
	at org.eclipse.e4.core.internal.contexts.EclipseContext.dispose(EclipseContext.java:186)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.clearContext(PartRenderingEngine.java:604)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:545)
	at org.eclipse.ui.internal.WorkbenchWindow.hardClose(WorkbenchWindow.java:1358)
	at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:1059)
	at org.eclipse.ui.internal.WorkbenchWindow.access$9(WorkbenchWindow.java:1038)
	at org.eclipse.ui.internal.WorkbenchWindow$6.run(WorkbenchWindow.java:1085)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1083)
	at org.eclipse.ui.internal.Workbench$14.run(Workbench.java:1048)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.Workbench.busyClose(Workbench.java:1042)
	at org.eclipse.ui.internal.Workbench.access$11(Workbench.java:956)
	at org.eclipse.ui.internal.Workbench$15.run(Workbench.java:1118)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.Workbench.close(Workbench.java:1116)
	at org.eclipse.ui.internal.Workbench.close(Workbench.java:1089)
	at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:1056)
	at org.eclipse.ui.internal.WorkbenchWindow.access$9(WorkbenchWindow.java:1038)
	at org.eclipse.ui.internal.WorkbenchWindow$6.run(WorkbenchWindow.java:1085)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1083)
	at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1099)
	at org.eclipse.ui.internal.WorkbenchWindow$4.close(WorkbenchWindow.java:427)
	at org.eclipse.e4.ui.workbench.renderers.swt.WBWRenderer$8.shellClosed(WBWRenderer.java:421)