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Bug 316292

Summary:	[class diagram] cannot delete association from diagram
Product:	[Modeling] Papyrus	Reporter:	Cedric Dumoulin <cedric.dumoulin>
Component:	Core	Assignee:	Patrick Tessier <Patrick.Tessier>
Status:	RESOLVED FIXED	QA Contact:
Severity:	blocker
Priority:	P3
Version:	0.7.0
Target Milestone:	0.7.0
Hardware:	PC
OS:	Windows XP
Whiteboard:
Bug Depends on:	316532
Bug Blocks:

Description Cedric Dumoulin

2010-06-09 09:46:49 EDT

- open a class diagram
- create 2 classes (with the palette)
- create anassociation between classes (with the palette)
- select the association
- from the contextual menu, try "delete from diagram". Nothing happen

But after that, some unexpected errors happens when selecting other elements:

org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException)
	at org.eclipse.swt.SWT.error(SWT.java:4083)
	at org.eclipse.swt.SWT.error(SWT.java:3998)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:137)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4012)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3631)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2416)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2380)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2229)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:504)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:497)
	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(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:619)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1406)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1382)
Caused by: java.lang.NullPointerException
	at org.eclipse.emf.transaction.util.TransactionUtil.getEditingDomain(TransactionUtil.java:61)
	at org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest.<init>(DestroyElementRequest.java:118)
	at org.eclipse.papyrus.diagram.clazz.edit.policies.ClassItemSemanticEditPolicy.getDestroyElementCommand(ClassItemSemanticEditPolicy.java:146)
	at org.eclipse.papyrus.diagram.clazz.custom.policies.itemsemantic.CustomClassItemSemanticEditPolicy.getDestroyElementCommand(CustomClassItemSemanticEditPolicy.java:129)
	at org.eclipse.papyrus.diagram.clazz.edit.policies.UMLBaseItemSemanticEditPolicy.getSemanticCommandSwitch(UMLBaseItemSemanticEditPolicy.java:690)
	at org.eclipse.papyrus.diagram.clazz.edit.policies.UMLBaseItemSemanticEditPolicy.getSemanticCommand(UMLBaseItemSemanticEditPolicy.java:670)
	at org.eclipse.gmf.runtime.diagram.ui.editpolicies.SemanticEditPolicy.getCommand(SemanticEditPolicy.java:69)
	at org.eclipse.papyrus.diagram.clazz.edit.policies.UMLBaseItemSemanticEditPolicy.getCommand(UMLBaseItemSemanticEditPolicy.java:544)
	at org.eclipse.gef.editparts.AbstractEditPart.getCommand(AbstractEditPart.java:473)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart.access$1(GraphicalEditPart.java:1)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart$1.run(GraphicalEditPart.java:482)
	at org.eclipse.emf.transaction.impl.TransactionalEditingDomainImpl.runExclusive(TransactionalEditingDomainImpl.java:328)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart.getCommand(GraphicalEditPart.java:477)
	at org.eclipse.papyrus.diagram.clazz.part.DeleteElementAction.getCommand(DeleteElementAction.java:86)
	at org.eclipse.gmf.runtime.diagram.ui.actions.DiagramAction.getCommand(DiagramAction.java:161)
	at org.eclipse.gmf.runtime.diagram.ui.actions.DiagramAction.calculateEnabled(DiagramAction.java:124)
	at org.eclipse.gmf.runtime.diagram.ui.actions.DiagramAction.refresh(DiagramAction.java:114)

Comment 1 Yann Tanguy

2010-06-10 16:03:55 EDT

I could not reproduce the bug, does this still occurs ?

Comment 2 Cedric Dumoulin

2010-06-10 16:33:29 EDT

I can reproduce it, but slightly differently :
- open a class diagram
- create 2 classes (with the palette)
- create an association between classes (with the palette)
- save abd close the editor
- open the editor
- select the association
- from the contextual menu, try "delete from diagram". Nothing happen

I have found an exception in the log:
java.lang.ClassCastException: org.eclipse.emf.ecore.change.impl.ChangeDescriptionImpl cannot be cast to org.eclipse.gmf.runtime.notation.Edge
	at org.eclipse.papyrus.diagram.clazz.custom.helper.AssociationEndSourceLabelHelper.getUMLElement(AssociationEndSourceLabelHelper.java:45)
	at org.eclipse.papyrus.diagram.clazz.custom.policies.DisplayAssociationEndEditPolicy.getUMLElement(DisplayAssociationEndEditPolicy.java:145)
	at org.eclipse.papyrus.diagram.clazz.custom.policies.DisplayAssociationEndEditPolicy.removeAdditionalListeners(DisplayAssociationEndEditPolicy.java:345)
	at org.eclipse.papyrus.diagram.common.editpolicies.AbstractMaskManagedEditPolicy.deactivate(AbstractMaskManagedEditPolicy.java:93)
	at org.eclipse.gef.editparts.AbstractEditPart.deactivateEditPolicies(AbstractEditPart.java:306)
	at org.eclipse.gef.editparts.AbstractEditPart.deactivate(AbstractEditPart.java:294)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.deactivate(AbstractGraphicalEditPart.java:354)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart.deactivate(GraphicalEditPart.java:315)
	at org.eclipse.gef.editparts.AbstractEditPart.deactivate(AbstractEditPart.java:292)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.deactivate(AbstractGraphicalEditPart.java:354)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart.deactivate(ConnectionEditPart.java:383)
	at org.eclipse.papyrus.diagram.clazz.custom.edit.part.AbstractAssociationEditPart.deactivate(AbstractAssociationEditPart.java:73)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.deactivate(AbstractGraphicalEditPart.java:352)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart.deactivate(GraphicalEditPart.java:315)
	at org.eclipse.gef.editparts.AbstractEditPart.deactivate(AbstractEditPart.java:292)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.deactivate(AbstractGraphicalEditPart.java:354)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart.deactivate(GraphicalEditPart.java:315)
	at org.eclipse.gef.editparts.AbstractEditPart.deactivate(AbstractEditPart.java:292)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.deactivate(AbstractGraphicalEditPart.java:354)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramRootEditPart.deactivate(DiagramRootEditPart.java:737)
	at org.eclipse.gef.ui.parts.AbstractEditPartViewer.unhookControl(AbstractEditPartViewer.java:768)
	at org.eclipse.gef.ui.parts.GraphicalViewerImpl.unhookControl(GraphicalViewerImpl.java:432)
	at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramGraphicalViewer.unhookControl(DiagramGraphicalViewer.java:363)
	at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setControl(AbstractEditPartViewer.java:634)
	at org.eclipse.gef.ui.parts.AbstractEditPartViewer.handleDispose(AbstractEditPartViewer.java:222)
	at org.eclipse.gef.ui.parts.GraphicalViewerImpl.handleDispose(GraphicalViewerImpl.java:109)
	at org.eclipse.gef.ui.parts.AbstractEditPartViewer$2.widgetDisposed(AbstractEditPartViewer.java:436)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:123)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)

Comment 3 Patrick Tessier

2010-06-22 06:06:18 EDT

It runs, it was a problem due to my local workspace