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0920 nightly build - start eclipse, by default it opens with just an empty Resource perspective - close this Resource perspective and you'll get the following NPE: java.lang.NullPointerException at org.eclipse.ui.internal.WorkbenchWindow.firePerspectiveChanged (WorkbenchWindow.java:944) at org.eclipse.ui.internal.WorkbenchPage.closeEditors (WorkbenchPage.java:948) at org.eclipse.ui.internal.WorkbenchPage.closeAllEditors (WorkbenchPage.java:880) at org.eclipse.ui.internal.WorkbenchPage.dispose (WorkbenchPage.java:1252) at org.eclipse.ui.internal.WorkbenchWindow.closePage (WorkbenchWindow.java:694) at org.eclipse.ui.internal.WorkbenchPage$3.run(WorkbenchPage.java:848) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69) at org.eclipse.ui.internal.WorkbenchPage.close(WorkbenchPage.java:846) at org.eclipse.ui.internal.WorkbenchPage.closePerspective (WorkbenchPage.java:1089) at org.eclipse.ui.internal.WorkbenchPage.closePerspective (WorkbenchPage.java:1056) at org.eclipse.ui.internal.PerspectiveSwitcher$9.widgetSelected (PerspectiveSwitcher.java:824) at org.eclipse.swt.widgets.TypedListener.handleEvent (TypedListener.java:89) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2783) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2442) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1435) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1406) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench (Workbench.java:263) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:144) at org.eclipse.ui.internal.ide.IDEApplication.run (IDEApplication.java:102) at org.eclipse.core.internal.runtime.PlatformActivator$1.run (PlatformActivator.java:335) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:273) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:129) 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:324) at org.eclipse.core.launcher.Main.basicRun(Main.java:185) at org.eclipse.core.launcher.Main.run(Main.java:704) at org.eclipse.core.launcher.Main.main(Main.java:688)
*** This bug has been marked as a duplicate of 73359 ***