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NullPointerException when exiting my sample GMF editor [message #903630]

Fri, 24 August 2012 15:13

Laurent Le Moux

Messages: 184
Registered: September 2011

Senior Member

Hi,

I observed the following problem after upgrading to Juno and GMF 3.0.
I define a very simple model (only two elements with a containment relation) and generate the corresponding GMF editor.
I launch the editor and create a sample diagram file.
Then I add an element to the diagram.

No matter, I save or not the diagram, I then get a NullPointerException when exiting the editor.

Can anyone help me figure out what's wrong (see the stacktrace hereafter) ?
If I choose to save the diagram before exiting, it's done.

Regards,

Laurent

!ENTRY org.eclipse.core.commands 4 2 2012-08-24 16:58:24.767
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.core.commands".
!STACK 0
java.lang.NullPointerException
at org.eclipse.emf.transaction.impl.TransactionImpl.start(TransactionImpl.java:257)
at org.eclipse.emf.transaction.impl.TransactionalEditingDomainImpl.startTransaction(TransactionalEditingDomainImpl.java:424)
at org.eclipse.emf.transaction.impl.TransactionalEditingDomainImpl.runExclusive(TransactionalEditingDomainImpl.java:321)
at org.eclipse.gmf.runtime.diagram.ui.internal.actions.PropertyChangeAction.getPropertyValue(PropertyChangeAction.java:148)
at org.eclipse.gmf.runtime.diagram.ui.internal.actions.PropertyChangeAction.getOperationSetPropertyValue(PropertyChangeAction.java:132)
at org.eclipse.gmf.runtime.diagram.ui.actions.BooleanPropertyAction.getNewPropertyValue(BooleanPropertyAction.java:46)
at org.eclipse.gmf.runtime.diagram.ui.internal.actions.PropertyChangeAction.updateTargetRequest(PropertyChangeAction.java:116)
at org.eclipse.gmf.runtime.diagram.ui.actions.DiagramAction.refresh(DiagramAction.java:113)
at org.eclipse.gmf.runtime.diagram.ui.actions.CheckedPropertyAction.refresh(CheckedPropertyAction.java:64)
at org.eclipse.gmf.runtime.common.ui.action.AbstractActionHandler.historyNotification(AbstractActionHandler.java:602)
at org.eclipse.core.commands.operations.DefaultOperationHistory$2.run(DefaultOperationHistory.java:941)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.commands.operations.DefaultOperationHistory.notifyListeners(DefaultOperationHistory.java:930)
at org.eclipse.core.commands.operations.DefaultOperationHistory.notifyRemoved(DefaultOperationHistory.java:1054)
at org.eclipse.core.commands.operations.DefaultOperationHistory.internalRemove(DefaultOperationHistory.java:902)
at org.eclipse.core.commands.operations.DefaultOperationHistory.flushUndo(DefaultOperationHistory.java:631)
at org.eclipse.core.commands.operations.DefaultOperationHistory.dispose(DefaultOperationHistory.java:330)
at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramEditor.stopListening(DiagramEditor.java:1014)
at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramEditorWithFlyOutPalette.stopListening(DiagramEditorWithFlyOutPalette.java:617)
at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramEditor.dispose(DiagramEditor.java:677)
at org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.DiagramDocumentEditor.dispose(DiagramDocumentEditor.java:212)
at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.invalidate(CompatibilityPart.java:209)
at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.destroy(CompatibilityPart.java:374)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:857)
at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:837)
at org.eclipse.e4.core.internal.di.InjectorImpl.uninject(InjectorImpl.java:170)
at org.eclipse.e4.core.internal.di.Requestor.uninject(Requestor.java:129)
at org.eclipse.e4.core.internal.contexts.ContextObjectSupplier$ContextInjectionListener.update(ContextObjectSupplier.java:71)
at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:106)
at org.eclipse.e4.core.internal.contexts.EclipseContext.removeListenersTo(EclipseContext.java:427)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.uninject(ContextInjectionFactory.java:143)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:849)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:801)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:801)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.e4.ui.workbench.renderers.swt.ElementReferenceRenderer.disposeWidget(ElementReferenceRenderer.java:122)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:840)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:801)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:801)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:801)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:801)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:801)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:801)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:801)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:768)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:763)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:748)
at org.eclipse.ui.internal.WorkbenchWindow.hardClose(WorkbenchWindow.java:1506)
at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:1158)
at org.eclipse.ui.internal.WorkbenchWindow.access$16(WorkbenchWindow.java:1135)
at org.eclipse.ui.internal.WorkbenchWindow$10.run(WorkbenchWindow.java:1184)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1182)
at org.eclipse.ui.internal.Workbench$16.run(Workbench.java:1103)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.Workbench.busyClose(Workbench.java:1086)
at org.eclipse.ui.internal.Workbench.access$16(Workbench.java:998)
at org.eclipse.ui.internal.Workbench$17.run(Workbench.java:1179)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.ui.internal.Workbench.close(Workbench.java:1177)
at org.eclipse.ui.internal.Workbench.close(Workbench.java:1150)
at org.eclipse.ui.internal.handlers.QuitHandler.execute(QuitHandler.java:36)
at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293)
at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:76)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:229)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:210)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:131)
at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:171)
at org.eclipse.ui.internal.handlers.LegacyHandlerService.executeCommand(LegacyHandlerService.java:492)
at org.eclipse.ui.internal.actions.CommandAction.runWithEvent(CommandAction.java:157)
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:411)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4169)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1022)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:916)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:585)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:540)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
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:353)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
at org.eclipse.equinox.launcher.Main.main(Main.java:1414)

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Re: NullPointerException when exiting my sample GMF editor [message #904992 is a reply to message #903630]

Wed, 29 August 2012 14:24

Laurent Le Moux

Messages: 184
Registered: September 2011

Senior Member

Hi again,

I tried to add an extension point in my plugin.xml as described in another topic :
http://www.eclipse.org/forums/index.php/mv/msg/163604/#msg_517804

But I still get the NPE Sad

No more idea what to do. Could somebody help me, please ?

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Re: NullPointerException when exiting my sample GMF editor [message #907564 is a reply to message #904992]

Tue, 04 September 2012 07:34

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

if more people have this porblem. You should report one and post the link here. If it is possible you should attach everything needed to generate the dagram code to the bug.

Ralph

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Re: NullPointerException when exiting my sample GMF editor [message #907573 is a reply to message #904992]

Tue, 04 September 2012 07:34

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

if more people have this porblem. You should report one and post the link here. If it is possible you should attach everything needed to generate the dagram code to the bug.

Ralph

Report message to a moderator

Re: NullPointerException when exiting my sample GMF editor [message #907581 is a reply to message #904992]

Tue, 04 September 2012 07:34

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

if more people have this porblem. You should report one and post the link here. If it is possible you should attach everything needed to generate the dagram code to the bug.

Ralph

Report message to a moderator

Re: NullPointerException when exiting my sample GMF editor [message #907587 is a reply to message #904992]

Tue, 04 September 2012 07:34

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

if more people have this porblem. You should report one and post the link here. If it is possible you should attach everything needed to generate the dagram code to the bug.

Ralph

Report message to a moderator

Re: NullPointerException when exiting my sample GMF editor [message #907589 is a reply to message #904992]

Tue, 04 September 2012 07:34

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

if more people have this porblem. You should report one and post the link here. If it is possible you should attach everything needed to generate the dagram code to the bug.

Ralph

Report message to a moderator

Re: NullPointerException when exiting my sample GMF editor [message #907594 is a reply to message #904992]

Tue, 04 September 2012 07:34

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

if more people have this porblem. You should report one and post the link here. If it is possible you should attach everything needed to generate the dagram code to the bug.

Ralph

Report message to a moderator

Re: NullPointerException when exiting my sample GMF editor [message #907605 is a reply to message #904992]

Tue, 04 September 2012 07:34

Ralph Gerbig

Messages: 702
Registered: November 2009

Senior Member

Hi,

if more people have this porblem. You should report one and post the link here. If it is possible you should attach everything needed to generate the dagram code to the bug.

Ralph

Report message to a moderator