java.lang.NullPointerException
   at org.netbeans.modules.j2ee.jpa.verification.fixes.AbstractCreateRelationshipHint.modifyTargetClass(AbstractCreateRelationshipHint.java:425)
   at org.netbeans.modules.j2ee.jpa.verification.fixes.AbstractCreateRelationshipHint.access$1100(AbstractCreateRelationshipHint.java:103)
   at org.netbeans.modules.j2ee.jpa.verification.fixes.AbstractCreateRelationshipHint$3.run(AbstractCreateRelationshipHint.java:325)
   at org.netbeans.modules.j2ee.jpa.verification.fixes.AbstractCreateRelationshipHint$3.run(AbstractCreateRelationshipHint.java:312)
   at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:649)
   at org.netbeans.api.java.source.JavaSource$1.run(JavaSource.java:639)
   at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:493)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:593)
   at org.netbeans.modules.parsing.api.ParserManager$MultiUserTaskAction.run(ParserManager.java:191)
   at org.netbeans.modules.parsing.api.ParserManager$MultiUserTaskAction.run(ParserManager.java:163)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:206)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:203)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:74)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:203)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:108)
   at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:443)
   at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:414)
   at org.netbeans.api.java.source.JavaSource.runModificationTask(JavaSource.java:660)
   at org.netbeans.modules.j2ee.jpa.verification.fixes.AbstractCreateRelationshipHint.modifyFiles(AbstractCreateRelationshipHint.java:334)
   at org.netbeans.modules.j2ee.jpa.verification.fixes.AbstractCreateRelationshipHint.implement(AbstractCreateRelationshipHint.java:187)
   at org.netbeans.modules.editor.hints.HintsUI$1.run(HintsUI.java:837)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)