Cannot create dynamic instance of xMOF model

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create an xMOF (Configuration) model
2. Right-click any EClass (or BehavioredEClass etc)
3. Click "Create Dynamic Instance"
4. Open the created xmi with sample reflective editor
5. Click the created object

What is the expected output? What do you see instead?

It should allow to add child elements etc. Instead, you get the following 
exception:

An error has occurred. See error log for more details.
org.modelexecution.xmof.Syntax.Activities.IntermediateActivities.impl.InitialNod
eImpl cannot be cast to org.eclipse.emf.ecore.EDataType

Original issue reported on code.google.com by p.langer on 15 Feb 2013 at 2:47

[GoogleCodeExporter]

Here is the entire stack trace:

java.lang.ClassCastException: 
org.modelexecution.xmof.Syntax.Activities.IntermediateActivities.impl.InitialNod
eImpl cannot be cast to org.eclipse.emf.ecore.EDataType
    at org.eclipse.emf.ecore.util.BasicExtendedMetaData.createEClassifierExtendedMetaData(BasicExtendedMetaData.java:2810)
    at org.eclipse.emf.ecore.util.BasicExtendedMetaData.getExtendedMetaData(BasicExtendedMetaData.java:2796)
    at org.eclipse.emf.ecore.util.BasicExtendedMetaData.getName(BasicExtendedMetaData.java:279)
    at org.eclipse.emf.edit.provider.ReflectiveItemProvider.gatherMetaData(ReflectiveItemProvider.java:171)
    at org.eclipse.emf.edit.provider.ReflectiveItemProvider.gatherAllMetaData(ReflectiveItemProvider.java:126)
    at org.eclipse.emf.edit.provider.ReflectiveItemProvider.collectNewChildDescriptors(ReflectiveItemProvider.java:568)
    at org.eclipse.emf.edit.provider.ItemProviderAdapter.getNewChildDescriptors(ItemProviderAdapter.java:785)
    at org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain.getNewChildDescriptors(AdapterFactoryEditingDomain.java:743)
    at org.eclipse.emf.ecore.presentation.EcoreActionBarContributor.selectionChangedGen(EcoreActionBarContributor.java:670)
    at org.eclipse.emf.ecore.presentation.EcoreActionBarContributor.selectionChanged(EcoreActionBarContributor.java:694)
    at org.eclipse.emf.ecore.presentation.EcoreEditor.setSelection(EcoreEditor.java:1763)
    at org.eclipse.emf.ecore.presentation.EcoreEditor$7.selectionChanged(EcoreEditor.java:1008)
    at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:164)
    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.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:162)
    at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2188)
    at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1211)
    at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1241)
    at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:239)
    at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:233)
    at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:403)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1276)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3554)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3179)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1029)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:923)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543)
    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(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    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)

Original comment by p.langer on 15 Feb 2013 at 2:49

[GoogleCodeExporter]

The EMF framework (correctly? ;)) assumes that an EClassifier is either an 
EClass or an EDataType in 
org.eclipse.emf.ecore.util.BasicExtendedMetaData.createEClassifierExtendedMetaDa
ta(EClassifier)

I'll fix that by changing the super type of ActivityNode and ActivityEdge to 
ENamedElement (instead of EClassifier).

Original comment by p.langer on 15 Feb 2013 at 3:39

• Changed state: Started

[GoogleCodeExporter]

This issue was closed by revision 118e4c7c28e4.

Original comment by p.langer on 15 Feb 2013 at 3:40

• Changed state: Fixed