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From bug 349194 comment #2 If you bring up 4.1 and the XSD is not restored, you don't have the startup problem. However, clicking on the tab brings us an NPE. The problem seems to be that we're in the process of creating the part: org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:141) Then we allow the client code (which may or may not spin the event loop) back into the CPR to call a setFocus() call: org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer$2.setFocus(ContributedPartRenderer.java:105) The full stack trace: java.lang.NullPointerException at org.eclipse.wst.xsd.ui.internal.adt.editor.ADTMultiPageEditor.pageChange(ADTMultiPageEditor.java:242) at org.eclipse.wst.xsd.ui.internal.editor.InternalXSDMultiPageEditor.pageChange(InternalXSDMultiPageEditor.java:1191) at org.eclipse.ui.part.MultiPageEditorPart$2.widgetSelected(MultiPageEditorPart.java:292) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240) 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:2745) at org.eclipse.swt.custom.CTabFolder.onFocus(CTabFolder.java:1314) at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:253) 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:1263) at org.eclipse.swt.widgets.Control.sendFocusEvent(Control.java:3575) at org.eclipse.swt.widgets.Control.gtk_event_after(Control.java:2938) at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1738) at org.eclipse.swt.widgets.Control.windowProc(Control.java:5016) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4408) at org.eclipse.swt.internal.gtk.OS._gtk_widget_grab_focus(Native Method) at org.eclipse.swt.internal.gtk.OS.gtk_widget_grab_focus(OS.java:12928) at org.eclipse.swt.widgets.Control.forceFocus(Control.java:2320) at org.eclipse.swt.widgets.Composite.forceFocus(Composite.java:526) at org.eclipse.swt.widgets.Control.forceFocus(Control.java:2313) at org.eclipse.swt.widgets.Control.setFocus(Control.java:3944) at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:1373) at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:1371) at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:1371) at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer$2.setFocus(ContributedPartRenderer.java:105) at org.eclipse.swt.widgets.Decorations.restoreFocus(Decorations.java:507) at org.eclipse.swt.widgets.Shell.setEnabled(Shell.java:1750) at org.eclipse.ui.internal.progress.ProgressManager.setUserInterfaceActive(ProgressManager.java:1258) at org.eclipse.ui.internal.progress.ProgressManager.access$4(ProgressManager.java:1252) at org.eclipse.ui.internal.progress.ProgressManager$3.run(ProgressManager.java:966) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:995) at org.eclipse.ui.internal.progress.ProgressManager.busyCursorWhile(ProgressManager.java:970) at org.eclipse.wst.xsd.ui.internal.text.XSDModelAdapter.createSchema(XSDModelAdapter.java:135) at org.eclipse.wst.xsd.ui.internal.text.XSDModelAdapter.lookupOrCreateSchema(XSDModelAdapter.java:213) at org.eclipse.wst.xsd.ui.internal.editor.InternalXSDMultiPageEditor.buildModel(InternalXSDMultiPageEditor.java:247) at org.eclipse.wst.xsd.ui.internal.adt.editor.ADTMultiPageEditor.createPages(ADTMultiPageEditor.java:173) at org.eclipse.wst.xsd.ui.internal.editor.InternalXSDMultiPageEditor.createPages(InternalXSDMultiPageEditor.java:568) at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:358) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:122) at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:45) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:256) 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.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:828) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:808) at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:108) at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:310) at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:237) at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:153) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:90) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:64) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:53) at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:141) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:858) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:612) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:714) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:685) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:679) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:664) at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.showTab(StackRenderer.java:686) at org.eclipse.e4.ui.workbench.renderers.swt.LazyStackRenderer$1.handleEvent(LazyStackRenderer.java:66) at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:41) at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180) at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150) at org.eclipse.swt.widgets.Display.syncExec(Display.java:4330) at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:182) at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38) at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:197) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:197) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135) at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78) at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39) at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:75) at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:58) at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:380) at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:171) at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer$4.widgetSelected(StackRenderer.java:589) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240) 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.e4.ui.widgets.CTabFolder.setSelection(CTabFolder.java:2998) at org.eclipse.e4.ui.widgets.CTabFolder.onMouse(CTabFolder.java:1707) at org.eclipse.e4.ui.widgets.CTabFolder$1.handleEvent(CTabFolder.java:270) 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.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:969) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:885) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:87)
I cannot induce this bug on Windows XP.
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant. If the bug is still relevant, please remove the "stalebug" whiteboard tag.
