Annotation: Exception occurred in Request Processor
java.lang.NullPointerException
	at org.netbeans.modules.javacore.jmiimpl.javamodel.ResourceImpl.checkUpToDate(ResourceImpl.java:464)
	at org.netbeans.modules.javacore.jmiimpl.javamodel.ResourceImpl.checkUpToDate(ResourceImpl.java:456)
	at org.netbeans.modules.javacore.jmiimpl.javamodel.ResourceImpl.initResource(ResourceImpl.java:360)
	at org.netbeans.modules.javacore.jmiimpl.javamodel.MetadataElement.initCheck(MetadataElement.java:123)
	at org.netbeans.modules.javacore.jmiimpl.javamodel.SemiPersistentElement.getElementInfo(SemiPersistentElement.java:144)
	at org.netbeans.modules.javacore.jmiimpl.javamodel.SemiPersistentElement.getInternalForm(SemiPersistentElement.java:758)
	at org.netbeans.modules.javacore.jmiimpl.javamodel.MetadataElement.getASTree(MetadataElement.java:436)
	at org.netbeans.modules.javacore.jmiimpl.javamodel.SemiPersistentElement.getParser(SemiPersistentElement.java:753)
	at org.netbeans.modules.javacore.jmiimpl.javamodel.ElementNavigator.<init>(ElementNavigator.java:32)
	at org.netbeans.modules.javacore.jmiimpl.javamodel.UsageFinder$LazyIterator.findNext(UsageFinder.java:282)
	at org.netbeans.modules.javacore.jmiimpl.javamodel.UsageFinder$LazyIterator.hasNext(UsageFinder.java:308)
	at org.netbeans.modules.refactoring.api.MoveClassRefactoring.isAccessedByOriginalPackage(MoveClassRefactoring.java:601)
	at org.netbeans.modules.refactoring.api.MoveClassRefactoring.preCheck(MoveClassRefactoring.java:119)
	at org.netbeans.modules.refactoring.api.ui.ParametersPanel$7.run(ParametersPanel.java:407)