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Bug 363321 - drag and drop elements in gmf editor causes NullPointerException
Summary: drag and drop elements in gmf editor causes NullPointerException
Status: NEW
Alias: None
Product: GMF-Runtime
Classification: Modeling
Component: General (show other bugs)
Version: unspecified   Edit
Hardware: PC Windows 7
: P3 major
Target Milestone: ---   Edit
Assignee: Project Inbox CLA
QA Contact:
URL:
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Keywords:
Depends on:
Blocks:
 
Reported: 2011-11-09 09:46 EST by Chris B. CLA
Modified: 2011-11-09 09:46 EST (History)
0 users

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Description Chris B. CLA 2011-11-09 09:46:52 EST 
Build Identifier: M20110909-1335

java.lang.NullPointerException
	at org.eclipse.emf.ecore.impl.EClassImpl.getFeatureID(EClassImpl.java:1466)
	at org.eclipse.emf.ecore.util.BasicExtendedMetaData.getAffiliation(BasicExtendedMetaData.java:1339)
	at org.eclipse.emf.edit.command.SetCommand.prepare(SetCommand.java:525)
	at org.eclipse.emf.common.command.AbstractCommand.canExecute(AbstractCommand.java:114)
	at org.eclipse.emf.edit.command.AbstractOverrideableCommand.doCanExecute(AbstractOverrideableCommand.java:120)
	at org.eclipse.emf.edit.command.AbstractOverrideableCommand.canExecute(AbstractOverrideableCommand.java:113)
	at org.eclipse.emf.edit.command.DragAndDropCommand.prepareDropLinkOn(DragAndDropCommand.java:801)
	at org.eclipse.emf.edit.command.DragAndDropCommand.prepareDropOn(DragAndDropCommand.java:707)
	at org.eclipse.emf.edit.command.DragAndDropCommand.prepare(DragAndDropCommand.java:307)
	at org.eclipse.emf.common.command.AbstractCommand.canExecute(AbstractCommand.java:114)
	at org.eclipse.emf.edit.command.DragAndDropCommand.validate(DragAndDropCommand.java:892)
	at org.eclipse.emf.edit.ui.dnd.EditingDomainViewerDropAdapter.helper(EditingDomainViewerDropAdapter.java:311)
	at org.eclipse.emf.edit.ui.dnd.EditingDomainViewerDropAdapter.dragOver(EditingDomainViewerDropAdapter.java:190)
	at org.eclipse.swt.dnd.DNDListener.handleEvent(DNDListener.java:80)
	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.Widget.sendEvent(Widget.java:1077)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:774)
	at org.eclipse.swt.dnd.DropTarget.DragOver(DropTarget.java:366)
	at org.eclipse.swt.dnd.DropTarget.DragOver_64(DropTarget.java:340)
	at org.eclipse.swt.dnd.DropTarget$3.method4(DropTarget.java:252)
	at org.eclipse.swt.internal.ole.win32.COMObject.callback4(COMObject.java:101)
	at org.eclipse.swt.internal.ole.win32.COM.DoDragDrop(Native Method)
	at org.eclipse.swt.dnd.DragSource.drag(DragSource.java:363)
	at org.eclipse.swt.dnd.DragSource.access$0(DragSource.java:289)
	at org.eclipse.swt.dnd.DragSource$1.handleEvent(DragSource.java:172)
	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)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

eclipse.buildId=M20110909-1335
java.version=1.7.0_01
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_DE
Framework arguments:  -product org.eclipse.epp.package.modeling.product
Command-line arguments:  -data C:\Workspace37GMF -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.modeling.product

Reproducible: Always

Steps to Reproduce:
1.create new element e.g. figure gallery->new child->figure descriptor 
2.try to position the element within same elements via DnD 
3.editor doesn't react on DnD actions at all or the current view freezes with the reference line that indicates a DnD action