Bug 370854

Description Alain Le Guennec 2012-02-07 11:47:01 EST

Steps to reproduce:
-Create a BDD
-Create two blocks B1 & B2
-Add a directed composition from B1 to B2
-Add a directed composition from B1 to the previous directed composition itself.
=> The following exception is raised (there are 3 similar exceptions, actually):

java.lang.ClassCastException: org.eclipse.papyrus.sysml.diagram.common.edit.part.AssociationEditPart cannot be cast to org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart
	at org.eclipse.papyrus.sysml.diagram.common.edit.part.AssociationEditPart.refreshVisuals(AssociationEditPart.java:111)
	at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:725)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.refresh(AbstractGraphicalEditPart.java:644)
	at org.eclipse.gef.editparts.AbstractConnectionEditPart.refresh(AbstractConnectionEditPart.java:226)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart.access$1(ConnectionEditPart.java:1)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart$5.run(ConnectionEditPart.java:1127)
	at org.eclipse.emf.transaction.impl.TransactionalEditingDomainImpl.runExclusive(TransactionalEditingDomainImpl.java:328)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart.refresh(ConnectionEditPart.java:1124)
	at org.eclipse.gef.editparts.AbstractConnectionEditPart.setTarget(AbstractConnectionEditPart.java:304)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.addTargetConnection(AbstractGraphicalEditPart.java:291)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.refreshTargetConnections(AbstractGraphicalEditPart.java:760)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionNodeEditPart.handleNotificationEvent(ConnectionNodeEditPart.java:223)
	at org.eclipse.papyrus.diagram.common.editparts.UMLConnectionNodeEditPart.handleNotificationEvent(UMLConnectionNodeEditPart.java:86)
	at org.eclipse.papyrus.uml.diagram.common.edit.part.AbstractElementLinkEditPart.handleNotificationEvent(AbstractElementLinkEditPart.java:104)
	at org.eclipse.papyrus.sysml.diagram.common.edit.part.AssociationEditPart.handleNotificationEvent(AssociationEditPart.java:92)
	at org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart.notifyChanged(ConnectionEditPart.java:1731)
	at org.eclipse.gmf.runtime.diagram.core.listener.DiagramEventBroker.fireNotification(DiagramEventBroker.java:500)
	at org.eclipse.gmf.runtime.diagram.core.listener.DiagramEventBroker.resourceSetChanged(DiagramEventBroker.java:395)
	at org.eclipse.gmf.runtime.diagram.ui.DiagramEventBrokerThreadSafe.resourceSetChanged(DiagramEventBrokerThreadSafe.java:73)
	at org.eclipse.emf.transaction.impl.TransactionalEditingDomainImpl$1.run(TransactionalEditingDomainImpl.java:781)
	at org.eclipse.emf.transaction.impl.TransactionalEditingDomainImpl.runExclusive(TransactionalEditingDomainImpl.java:328)
	at org.eclipse.emf.transaction.impl.TransactionalEditingDomainImpl.postcommit(TransactionalEditingDomainImpl.java:771)
	at org.eclipse.emf.transaction.impl.TransactionalEditingDomainImpl.deactivate(TransactionalEditingDomainImpl.java:543)
	at org.eclipse.emf.transaction.impl.TransactionImpl.close(TransactionImpl.java:712)
	at org.eclipse.emf.transaction.impl.TransactionImpl.commit(TransactionImpl.java:474)
	at org.eclipse.emf.workspace.AbstractEMFOperation.execute(AbstractEMFOperation.java:155)
	at org.eclipse.gmf.runtime.common.core.command.CompositeCommand.doExecuteWithResult(CompositeCommand.java:403)
	at org.eclipse.gmf.runtime.common.core.command.AbstractCommand.execute(AbstractCommand.java:134)
	at org.eclipse.gmf.runtime.common.core.command.CompositeCommand.doExecuteWithResult(CompositeCommand.java:403)
	at org.eclipse.gmf.runtime.common.core.command.AbstractCommand.execute(AbstractCommand.java:134)
	at org.eclipse.core.commands.operations.DefaultOperationHistory.execute(DefaultOperationHistory.java:513)
	at org.eclipse.papyrus.commands.CheckedOperationHistory.execute(CheckedOperationHistory.java:182)
	at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramCommandStack.execute(DiagramCommandStack.java:206)
	at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramCommandStack.execute(DiagramCommandStack.java:169)
	at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramCommandStack.execute(DiagramCommandStack.java:156)
	at org.eclipse.gef.tools.AbstractTool.executeCommand(AbstractTool.java:425)
	at org.eclipse.gef.tools.AbstractTool.executeCurrentCommand(AbstractTool.java:438)
	at org.eclipse.papyrus.diagram.common.service.AspectUnspecifiedTypeConnectionTool.handleCreateConnection(AspectUnspecifiedTypeConnectionTool.java:291)
	at org.eclipse.gef.tools.ConnectionCreationTool.handleButtonDown(ConnectionCreationTool.java:77)
	at org.eclipse.gef.tools.AbstractTool.mouseDown(AbstractTool.java:1091)
	at org.eclipse.gef.EditDomain.mouseDown(EditDomain.java:245)
	at org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchMousePressed(DomainEventDispatcher.java:348)
	at org.eclipse.draw2d.LightweightSystem$EventHandler.mouseDown(LightweightSystem.java:523)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:191)
	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:4165)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	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:123)
	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(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:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)

If the model is saved, the BDD diagram can no more be loaded afterwards, since a similar exception is raised while opening the BDD.