java.lang.AssertionError
   at com.sun.tools.javac.comp.Attr.visitTree(Attr.java:3961)
   at com.sun.tools.javac.tree.JCTree$Visitor.visitCatch(JCTree.java:2513)
   at com.sun.tools.javac.tree.JCTree$JCCatch.accept(JCTree.java:1188)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:609)
   at com.sun.tools.javac.comp.Attr.visitErroneous(Attr.java:3954)
   at com.sun.tools.javac.tree.JCTree$JCErroneous.accept(JCTree.java:2363)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:609)
   at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:634)
   at com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1603)
   at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1278)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:609)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:654)
   at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:670)
   at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1146)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:82)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:891)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:609)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:654)
   at com.sun.tools.javac.comp.Attr.visitTry(Attr.java:1377)
   at com.sun.tools.javac.tree.JCTree$JCTry.accept(JCTree.java:1155)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:609)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:654)
   at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:670)
   at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1146)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:82)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:891)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:609)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:654)
   at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1043)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitMethodDef(NBAttr.java:76)
   at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:609)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:654)
   at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4166)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4064)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:3997)
   at com.sun.tools.javac.comp.Attr.visitClassDef(Attr.java:880)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitClassDef(NBAttr.java:70)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:692)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:609)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:654)
   at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4166)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4064)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4019)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:3997)
   at com.sun.tools.javac.api.JavacTrees.getElement(JavacTrees.java:238)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider$Context.initMethodContext(JPACodeCompletionProvider.java:523)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider$Context.getMethod(JPACodeCompletionProvider.java:627)
   at org.netbeans.modules.j2ee.persistence.editor.completion.ETCompletionContextResolver.resolve(ETCompletionContextResolver.java:80)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider$JPACodeCompletionQuery$TaskUserAction.run(JPACodeCompletionProvider.java:267)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider$JPACodeCompletionQuery$TaskUserAction.run(JPACodeCompletionProvider.java:243)
   at org.netbeans.modules.j2ee.persistenceapi.metadata.orm.annotation.EntityMappingsMetadataModelImpl$1.call(EntityMappingsMetadataModelImpl.java:77)
   at org.netbeans.modules.j2ee.metadata.model.api.support.annotation.AnnotationModelHelper.runCallable(AnnotationModelHelper.java:256)
   at org.netbeans.modules.j2ee.metadata.model.api.support.annotation.AnnotationModelHelper.access$100(AnnotationModelHelper.java:79)
   at org.netbeans.modules.j2ee.metadata.model.api.support.annotation.AnnotationModelHelper$2.run(AnnotationModelHelper.java:184)
   at org.netbeans.modules.j2ee.metadata.model.api.support.annotation.AnnotationModelHelper$2.run(AnnotationModelHelper.java:181)
   at org.netbeans.modules.java.source.parsing.MimeTask.run(MimeTask.java:83)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
   at org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:382)
   at org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:365)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:201)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:198)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:74)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:198)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:336)
   at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:417)
   at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:409)
   at org.netbeans.modules.j2ee.metadata.model.api.support.annotation.AnnotationModelHelper.runJavaSourceTask(AnnotationModelHelper.java:181)
   at org.netbeans.modules.j2ee.metadata.model.api.support.annotation.AnnotationModelHelper.runJavaSourceTask(AnnotationModelHelper.java:149)
   at org.netbeans.modules.j2ee.persistenceapi.metadata.orm.annotation.EntityMappingsMetadataModelImpl.runReadAction(EntityMappingsMetadataModelImpl.java:75)
   at org.netbeans.modules.j2ee.metadata.model.api.MetadataModel.runReadAction(MetadataModel.java:122)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider$JPACodeCompletionQuery.run(JPACodeCompletionProvider.java:231)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider$JPACodeCompletionQuery.access$600(JPACodeCompletionProvider.java:104)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider$JPACodeCompletionQuery$Task.run(JPACodeCompletionProvider.java:281)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:155)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:139)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:201)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:198)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:74)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:198)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:106)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider$JPACodeCompletionQuery.query(JPACodeCompletionProvider.java:141)
   at org.netbeans.spi.editor.completion.support.AsyncCompletionTask.run(AsyncCompletionTask.java:223)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2044)
Caused: org.openide.util.RequestProcessor$FastItem: task failed due to: java.lang.AssertionError