Description Michael Rennie 2011-01-27 10:59:45 EST

I20110126-0800

Editing a plugin.xml (in the xml view) while there are PDE search results causes  the following exception:

org.eclipse.core.runtime.InvalidRegistryObjectException: Invalid registry object
	at org.eclipse.core.internal.registry.RegistryObjectManager.basicGetObject(RegistryObjectManager.java:272)
	at org.eclipse.core.internal.registry.RegistryObjectManager.getObject(RegistryObjectManager.java:262)
	at org.eclipse.core.internal.registry.BaseExtensionHandle.getExtension(BaseExtensionHandle.java:30)
	at org.eclipse.core.internal.registry.BaseExtensionHandle.getUniqueIdentifier(BaseExtensionHandle.java:75)
	at org.eclipse.pde.internal.core.plugin.PluginExtension.getId(PluginExtension.java:186)
	at org.eclipse.pde.internal.core.plugin.PluginExtension.equals(PluginExtension.java:111)
	at org.eclipse.pde.internal.ui.search.ManifestEditorOpener.getAttributeMatch(ManifestEditorOpener.java:134)
	at org.eclipse.pde.internal.ui.search.ManifestEditorOpener.findExactMatch(ManifestEditorOpener.java:51)
	at org.eclipse.pde.internal.ui.search.SearchResult.computeContainedMatches(SearchResult.java:97)
	at org.eclipse.search2.internal.ui.text.EditorAnnotationManager.addAnnotations(EditorAnnotationManager.java:222)
	at org.eclipse.search2.internal.ui.text.EditorAnnotationManager.addSearchResult(EditorAnnotationManager.java:109)
	at org.eclipse.search2.internal.ui.text.EditorAnnotationManager.setSearchResults(EditorAnnotationManager.java:102)
	at org.eclipse.search2.internal.ui.text.WindowAnnotationManager.startHighlighting(WindowAnnotationManager.java:82)
	at org.eclipse.search2.internal.ui.text.WindowAnnotationManager.access$1(WindowAnnotationManager.java:75)
	at org.eclipse.search2.internal.ui.text.WindowAnnotationManager$1.partVisible(WindowAnnotationManager.java:64)
	at org.eclipse.ui.internal.PartListenerList2$7.run(PartListenerList2.java:172)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.runtime.Platform.run(Platform.java:888)
	at org.eclipse.ui.internal.PartListenerList2.fireEvent(PartListenerList2.java:55)
	at org.eclipse.ui.internal.PartListenerList2.firePartVisible(PartListenerList2.java:170)
	at org.eclipse.ui.internal.PartService.firePartVisible(PartService.java:253)
	at org.eclipse.ui.internal.WWinPartService$WWinListener.partVisible(WWinPartService.java:62)
	at org.eclipse.ui.internal.PartListenerList2$7.run(PartListenerList2.java:172)
	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.firePartVisible(PartListenerList2.java:170)
	at org.eclipse.ui.internal.PartService.firePartVisible(PartService.java:253)
	at org.eclipse.ui.internal.WorkbenchPagePartList.firePartVisible(WorkbenchPagePartList.java:68)
	at org.eclipse.ui.internal.PartList.partVisible(PartList.java:288)
	at org.eclipse.ui.internal.PartList.access$2(PartList.java:277)
	at org.eclipse.ui.internal.PartList$1.propertyChanged(PartList.java:47)
	at org.eclipse.ui.internal.WorkbenchPartReference.fireInternalPropertyChange(WorkbenchPartReference.java:375)
	at org.eclipse.ui.internal.WorkbenchPartReference.fireVisibilityChange(WorkbenchPartReference.java:536)
	at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:318)
	at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180)
	at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270)
	at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
	at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473)
	at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1245)
	at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1198)
	at org.eclipse.ui.internal.PartStack.presentationSelectionChanged(PartStack.java:834)
	at org.eclipse.ui.internal.PartStack.access$1(PartStack.java:823)
	at org.eclipse.ui.internal.PartStack$1.selectPart(PartStack.java:137)
	at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation$1.handleEvent(TabbedStackPresentation.java:133)
	at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:269)
	at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:278)
	at org.eclipse.ui.internal.presentations.defaultpresentation.DefaultTabFolder.access$1(DefaultTabFolder.java:1)
	at org.eclipse.ui.internal.presentations.defaultpresentation.DefaultTabFolder$2.handleEvent(DefaultTabFolder.java:88)
	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.Widget.sendEvent(Widget.java:1282)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1267)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1061)
	at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:2746)
	at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1432)
	at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:257)
	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:3549)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3170)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2697)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2661)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2495)
	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: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: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: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: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)

Steps:

1. open two plugn.xml files and switch to the plugin.xml tab - in my case I opened org.eclipse.sdk and org.eclipse.wst's plugin.xml
2. do a PDE search for 'org.eclipse.ui.activities' - searching for 'extension points' limited to 'references' and on 'enabled plugins only'.
3. make sure the Search view is open
4. in one of the plugin.xml files add a space and save
5. switch to the other plugin.xml and then back to the one you added the space to.

Expected 
Nothing. It would simply show me the plugin.xml

Happens
The exception pasted above.