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Bug 252589

Summary:	[Editor] Null pointer exception when deleting a simple type in the drilled down design view
Product:	[WebTools] WTP Source Editing	Reporter:	Steven Hung <sghung>
Component:	wst.xsd	Assignee:	Keith Chong <keith.chong.ca>
Status:	CLOSED FIXED	QA Contact:	Keith Chong <keith.chong.ca>
Severity:	normal
Priority:	P3	CC:	patric, valentinbaciu
Version:	3.1
Target Milestone:	3.1 M4
Hardware:	PC
OS:	Windows XP
Whiteboard:

Description Steven Hung

2008-10-29 10:20:05 EDT

Build ID: WTP 3.1

Steps To Reproduce:
This exception is printed to the console when debugging or running the Eclipse Application for the XSD editor.  This error is a silent error, which does not show up in the Eclipse application itself.  Other than the null pointer exception, the expected behavior for deleting and undo remains unchanged.

1. Check out the latest org.eclipse.wst.xsd.ui plugin and run in debug mode
2. Open GolfCountryClub/GolfCountryClub.xsd
3. Create a new simple type in the design view
4. Open the drill downed view of the simple type by double clicking on the newly created simple type (i.e. no longer in the schema index view)
5. Delete the simple type

The stack trace is as follows:

java.lang.NullPointerException
	at org.eclipse.xsd.util.XSDConstants.lookupQualifier(XSDConstants.java:1433)
	at org.eclipse.xsd.impl.XSDNamedComponentImpl.getQName(XSDNamedComponentImpl.java:654)
	at org.eclipse.wst.xsd.ui.internal.adapters.XSDSimpleTypeDefinitionAdapter.getText(XSDSimpleTypeDefinitionAdapter.java:68)
	at org.eclipse.wst.xsd.ui.internal.adapters.XSDSimpleTypeDefinitionAdapter.getText(XSDSimpleTypeDefinitionAdapter.java:49)
	at org.eclipse.wst.xsd.ui.internal.adt.outline.ADTLabelProvider.getText(ADTLabelProvider.java:44)
	at org.eclipse.wst.xsd.ui.internal.adt.outline.ADTContentOutlinePage$StatusLineLabelProvider.getText(ADTContentOutlinePage.java:311)
	at org.eclipse.wst.xsd.ui.internal.adt.outline.ADTContentOutlinePage.updateStatusLine(ADTContentOutlinePage.java:283)
	at org.eclipse.wst.xsd.ui.internal.adt.outline.ADTContentOutlinePage$SelectionManagerSelectionChangeListener.selectionChanged(ADTContentOutlinePage.java:160)
	at org.eclipse.wst.xsd.ui.internal.adt.editor.CommonSelectionManager.setSelection(CommonSelectionManager.java:98)
	at org.eclipse.wst.xsd.ui.internal.adt.editor.CommonSelectionManager.selectionChanged(CommonSelectionManager.java:71)
	at org.eclipse.wst.xsd.ui.internal.adt.design.DesignViewGraphicalViewer$ADTSelectionChangedListener.notifyListeners(DesignViewGraphicalViewer.java:218)
	at org.eclipse.wst.xsd.ui.internal.adt.design.DesignViewGraphicalViewer$ADTSelectionChangedListener.selectionChanged(DesignViewGraphicalViewer.java:255)
	at org.eclipse.gef.ui.parts.AbstractEditPartViewer.fireSelectionChanged(AbstractEditPartViewer.java:243)
	at org.eclipse.gef.ui.parts.AbstractEditPartViewer$1.run(AbstractEditPartViewer.java:129)
	at org.eclipse.gef.SelectionManager.fireSelectionChanged(SelectionManager.java:115)
	at org.eclipse.gef.SelectionManager.deselect(SelectionManager.java:92)
	at org.eclipse.gef.ui.parts.AbstractEditPartViewer.deselect(AbstractEditPartViewer.java:200)
	at org.eclipse.gef.editparts.AbstractEditPart.removeNotify(AbstractEditPart.java:866)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.removeNotify(AbstractGraphicalEditPart.java:731)
	at org.eclipse.gef.editparts.AbstractEditPart.removeNotify(AbstractEditPart.java:873)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.removeNotify(AbstractGraphicalEditPart.java:731)
	at org.eclipse.gef.editparts.AbstractEditPart.removeNotify(AbstractEditPart.java:873)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.removeNotify(AbstractGraphicalEditPart.java:731)
	at org.eclipse.gef.editparts.AbstractEditPart.removeChild(AbstractEditPart.java:811)
	at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:735)
	at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:677)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.refresh(AbstractGraphicalEditPart.java:571)
	at org.eclipse.wst.xsd.ui.internal.adt.design.editparts.BaseEditPart.refresh(BaseEditPart.java:120)
	at org.eclipse.wst.xsd.ui.internal.adt.design.editparts.RootContentEditPart.refresh(RootContentEditPart.java:146)
	at org.eclipse.wst.xsd.ui.internal.adt.design.editparts.BaseEditPart.propertyChanged(BaseEditPart.java:112)
	at org.eclipse.wst.xsd.ui.internal.adapters.XSDBaseAdapter.notifyListeners(XSDBaseAdapter.java:92)
	at org.eclipse.wst.xsd.ui.internal.adapters.XSDSchemaAdapter.notifyChanged(XSDSchemaAdapter.java:272)
	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:247)
	at org.eclipse.xsd.impl.XSDConcreteComponentImpl.eNotify(XSDConcreteComponentImpl.java:1283)
	at org.eclipse.emf.ecore.util.EcoreEList.dispatchNotification(EcoreEList.java:255)
	at org.eclipse.emf.common.notify.impl.NotifyingListImpl.remove(NotifyingListImpl.java:731)
	at org.eclipse.emf.common.util.BasicEList.remove(BasicEList.java:898)
	at org.eclipse.xsd.impl.XSDSchemaImpl$4.caseXSDTypeDefinition(XSDSchemaImpl.java:1954)
	at org.eclipse.xsd.util.XSDSwitch.doSwitch(XSDSwitch.java:656)
	at org.eclipse.xsd.util.XSDSwitch.doSwitch(XSDSwitch.java:88)
	at org.eclipse.xsd.util.XSDSwitch.doSwitch(XSDSwitch.java:74)
	at org.eclipse.xsd.impl.XSDSchemaImpl.orphanContent(XSDSchemaImpl.java:1975)
	at org.eclipse.xsd.impl.XSDConcreteComponentImpl.eNotify(XSDConcreteComponentImpl.java:1214)
	at org.eclipse.emf.ecore.util.EcoreEList.dispatchNotification(EcoreEList.java:255)
	at org.eclipse.emf.common.notify.impl.NotifyingListImpl.remove(NotifyingListImpl.java:719)
	at org.eclipse.emf.common.util.BasicEList.remove(BasicEList.java:898)
	at org.eclipse.wst.xsd.ui.internal.common.commands.DeleteCommand.execute(DeleteCommand.java:162)
	at org.eclipse.gef.commands.CommandStack.execute(CommandStack.java:170)
	at org.eclipse.wst.xsd.ui.internal.common.actions.DeleteXSDConcreteComponentAction.run(DeleteXSDConcreteComponentAction.java:59)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:412)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3848)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3446)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:333)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
	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:370)
	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:79)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:618)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1212)


More information:

Comment 1 Valentin Baciu

2008-10-29 10:25:03 EDT

The stack trace looks similar to the one attached to bug 252057.

Comment 2 Keith Chong

2008-11-14 14:55:59 EST

Targetting fix for 3.1 M4.

Comment 3 Keith Chong

2008-12-09 23:53:03 EST

Released for 3.1 M4.

Comment 4 Keith Chong

2008-12-17 12:02:14 EST

Verified in wtp-sdk-S-3.1M4-20081215095735. Closing bug.

Comment 5 Patric Rufflar

2012-02-14 06:17:11 EST

I'm still seeing a similar exception in a WTP 3.2.4 build:

java.lang.NullPointerException
at org.eclipse.xsd.util.XSDConstants.lookupQualifier(XSDConstants.java:1433)
at org.eclipse.xsd.impl.XSDNamedComponentImpl.getQName(XSDNamedComponentImpl.java:654)
at org.eclipse.wst.xsd.ui.internal.common.properties.sections.XSDAttributeDeclarationSection.refresh(XSDAttributeDeclarationSection.java:360)
at org.eclipse.ui.views.properties.tabbed.TabContents$6.run(TabContents.java:217)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.ui.views.properties.tabbed.TabContents.refresh(TabContents.java:220)
at org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage.refresh(TabbedPropertySheetPage.java:749)
at org.eclipse.wst.xsd.ui.internal.editor.XSDTabbedPropertySheetPage$InternalNodeAdapter.notifyChanged(XSDTabbedPropertySheetPage.java:153)
at org.eclipse.wst.xsd.ui.internal.util.ModelReconcileAdapter.notifyListeners(ModelReconcileAdapter.java:54)
at org.eclipse.wst.xsd.ui.internal.util.ModelReconcileAdapter.notifyChanged(ModelReconcileAdapter.java:66)
at org.eclipse.wst.sse.core.internal.provisional.AbstractNotifier.notify(AbstractNotifier.java:202)
at org.eclipse.wst.xml.core.internal.document.XMLModelNotifierImpl.notify(XMLModelNotifierImpl.java:238)
at org.eclipse.wst.xml.core.internal.document.XMLModelNotifierImpl.notifyDeferred(XMLModelNotifierImpl.java:340)
at org.eclipse.wst.xml.core.internal.document.XMLModelNotifierImpl.endChanging(XMLModelNotifierImpl.java:178)
at org.eclipse.wst.xml.core.internal.document.DOMModelImpl.changedModel(DOMModelImpl.java:163)
at org.eclipse.wst.sse.core.internal.model.AbstractStructuredModel$DocumentToModelNotifier.nodesReplaced(AbstractStructuredModel.java:152)
at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument._fireEvent(BasicStructuredDocument.java:600)
at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.fireStructuredDocumentEvent(BasicStructuredDocument.java:1199)
at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.internalReplaceText(BasicStructuredDocument.java:1979)
at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.replaceText(BasicStructuredDocument.java:2419)
at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.set(BasicStructuredDocument.java:2931)
at org.eclipse.core.internal.filebuffers.ResourceTextFileBuffer.handleFileContentChanged(ResourceTextFileBuffer.java:508)
at org.eclipse.core.internal.filebuffers.ResourceFileBuffer$2.execute(ResourceFileBuffer.java:151)
at org.eclipse.core.internal.filebuffers.ResourceFileBuffer$SafeFileChange.run(ResourceFileBuffer.java:86)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
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:369)
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:620)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
at org.eclipse.equinox.launcher.Main.run(Main.java:1408)