javax.jmi.reflect.InvalidObjectException: Object with MOFID B0178E1A-165D-11D9-8241-8B26EE38AA77:0000000000000733 no longer exists.

	at org.netbeans.mdr.handlers.BaseObjectHandler._getDelegate(BaseObjectHandler.java:322)

	at org.netbeans.modules.javacore.jmiimpl.javamodel.JavaClassImpl.getSuperclassRef(JavaClassImpl.java:949)

	at org.netbeans.modules.javacore.jmiimpl.javamodel.JavaClassImpl.getSuperClass(JavaClassImpl.java:285)

	at org.netbeans.jmi.javamodel.JavaClass$Impl.getSuperClass(Unknown Source)

	at org.netbeans.modules.javacore.parser.MDRParser.getSuperClass(MDRParser.java:1411)

	at org.netbeans.modules.javacore.parser.Scope.constructMemberTypeScope(Scope.java:128)

	at org.netbeans.modules.javacore.parser.Scope.createMemberTypeScope(Scope.java:116)

	at org.netbeans.modules.javacore.parser.Scope.constructMemberTypeScope(Scope.java:133)

	at org.netbeans.modules.javacore.parser.Scope.createMemberTypeScope(Scope.java:116)

	at org.netbeans.modules.javacore.parser.Scope.constructMemberTypeScope(Scope.java:133)

	at org.netbeans.modules.javacore.parser.Scope.createMemberTypeScope(Scope.java:116)

	at org.netbeans.modules.javacore.parser.MDRParser.processAST(MDRParser.java:442)

	at org.netbeans.modules.javacore.parser.MDRParser.processAST(MDRParser.java:364)

	at org.netbeans.modules.javacore.parser.MDRParser.processAST(MDRParser.java:450)

	at org.netbeans.modules.javacore.parser.MDRParser.processAST(MDRParser.java:332)

	at org.netbeans.modules.javacore.parser.MDRParser.processAST(MDRParser.java:294)

	at org.netbeans.modules.javacore.parser.MDRParser.processAST(MDRParser.java:271)

	at org.netbeans.modules.javacore.parser.MDRParser.enterMembers(MDRParser.java:211)

	at org.netbeans.modules.javacore.jmiimpl.javamodel.ResourceImpl.directUpdate(ResourceImpl.java:554)

	at org.netbeans.modules.javacore.jmiimpl.javamodel.ResourceImpl.checkUpToDate(ResourceImpl.java:480)

	at org.netbeans.modules.javacore.jmiimpl.javamodel.ResourceImpl.updateFromDataObject(ResourceImpl.java:386)

	at org.netbeans.modules.javacore.ExclusiveMutex.parseIfNeeded(ExclusiveMutex.java:221)

	at org.netbeans.modules.javacore.ExclusiveMutex.enter(ExclusiveMutex.java:140)

	at org.netbeans.mdr.NBMDRepositoryImpl.beginTrans(NBMDRepositoryImpl.java:227)

	at org.netbeans.modules.javacore.internalapi.UndoManager.parseModified(UndoManager.java:480)

	at org.netbeans.modules.javacore.internalapi.UndoManager.transactionEnded(UndoManager.java:133)

	at org.netbeans.modules.javacore.internalapi.UndoManager.undo(UndoManager.java:188)

	at org.netbeans.test.refactoring.move.MoveTestCase.moveClass(MoveTestCase.java:68)

	at org.netbeans.test.refactoring.move.SimpleTest.testUndoMoveClass2(SimpleTest.java:77)