java.lang.IllegalStateException: Metamodel XMI malformed.
	at org.netbeans.lib.jmi.util.MetamodelManager.update(MetamodelManager.java:165)
	at org.netbeans.lib.jmi.util.MetamodelManager.findRootPackage(MetamodelManager.java:60)
	at org.netbeans.modules.javacore.JMManager.init(JMManager.java:329)
	at org.netbeans.modules.javacore.JMManager.access$800(JMManager.java:110)
	at org.netbeans.modules.javacore.JMManager$7.run(JMManager.java:1441)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:499)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:932)
==>
java.lang.NullPointerException
	at org.netbeans.mdr.NBMDRepositoryImpl.getMOFModelPackage(NBMDRepositoryImpl.java:735)
	at org.netbeans.mdr.NBMDRepositoryImpl.createExtent(NBMDRepositoryImpl.java:458)
	at org.netbeans.mdr.NBMDRepositoryImpl.createExtent(NBMDRepositoryImpl.java:294)
	at org.netbeans.mdr.NBMDRepositoryImpl.createExtent(NBMDRepositoryImpl.java:282)
	at org.netbeans.mdr.NBMDRepositoryImpl.createExtent(NBMDRepositoryImpl.java:271)
	at org.netbeans.lib.jmi.util.MetamodelManager.update(MetamodelManager.java:150)
	at org.netbeans.lib.jmi.util.MetamodelManager.findRootPackage(MetamodelManager.java:60)
	at org.netbeans.modules.javacore.JMManager.init(JMManager.java:329)
	at org.netbeans.modules.javacore.JMManager.access$800(JMManager.java:110)
	at org.netbeans.modules.javacore.JMManager$7.run(JMManager.java:1441)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:499)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:932)