com.sun.tools.javac.comp.Infer$InferenceException
   at com.sun.tools.javac.comp.Infer.<init>(Infer.java:94)
   at com.sun.tools.javac.comp.Infer.instance(Infer.java:81)
   at com.sun.tools.javac.comp.Attr.<init>(Attr.java:119)
   at org.netbeans.lib.nbjavac.services.NBAttr.<init>(NBAttr.java:63)
   at org.netbeans.lib.nbjavac.services.NBAttr$1.make(NBAttr.java:55)
   at org.netbeans.lib.nbjavac.services.NBAttr$1.make(NBAttr.java:53)
   at com.sun.tools.javac.util.Context.get(Context.java:150)
   at com.sun.tools.javac.comp.Attr.instance(Attr.java:101)
   at com.sun.tools.javac.comp.Resolve.<init>(Resolve.java:124)
   at org.netbeans.lib.nbjavac.services.NBResolve.<init>(NBResolve.java:73)
   at org.netbeans.lib.nbjavac.services.NBResolve$1.make(NBResolve.java:67)
   at org.netbeans.lib.nbjavac.services.NBResolve$1.make(NBResolve.java:65)
   at com.sun.tools.javac.util.Context.get(Context.java:150)
   at com.sun.tools.javac.comp.Resolve.instance(Resolve.java:159)
   at com.sun.tools.javac.comp.Check.<init>(Check.java:112)
   at com.sun.tools.javac.comp.Check.instance(Check.java:100)
   at com.sun.tools.javac.code.Types.<init>(Types.java:117)
   at com.sun.tools.javac.code.Types.instance(Types.java:103)
   at com.sun.tools.javac.jvm.ClassReader.<init>(ClassReader.java:291)
   at com.sun.tools.javadoc.JavadocClassReader.<init>(JavadocClassReader.java:73)
   at org.netbeans.lib.nbjavac.services.NBClassReader.<init>(NBClassReader.java:74)
   at org.netbeans.lib.nbjavac.services.NBClassReader$1.make(NBClassReader.java:65)
   at org.netbeans.lib.nbjavac.services.NBClassReader$1.make(NBClassReader.java:63)
   at com.sun.tools.javac.util.Context.get(Context.java:150)
   at com.sun.tools.javac.jvm.ClassReader.instance(ClassReader.java:251)
   at com.sun.tools.javac.main.JavaCompiler.<init>(JavaCompiler.java:362)
   at com.sun.tools.javac.main.JavaCompiler.instance(JavaCompiler.java:90)
   at com.sun.tools.javac.api.JavacTaskImpl.prepareCompiler(JavacTaskImpl.java:178)
   at com.sun.tools.javac.api.JavacTaskImpl.parse(JavacTaskImpl.java:236)
   at org.netbeans.modules.java.source.parsing.JavacParser.moveToPhase(JavacParser.java:592)
   at org.netbeans.modules.java.source.parsing.CompilationInfoImpl.toPhase(CompilationInfoImpl.java:383)
   at org.netbeans.api.java.source.CompilationController.toPhase(CompilationController.java:109)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider.getCompletionTreePath(JPACodeCompletionProvider.java:289)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider.access$100(JPACodeCompletionProvider.java:89)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider$JPACodeCompletionQuery.run(JPACodeCompletionProvider.java:213)
   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$Task.run(JPACodeCompletionProvider.java:281)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:609)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:153)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:137)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:204)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:201)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:141)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:88)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:201)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:104)
   at org.netbeans.modules.j2ee.persistence.editor.completion.JPACodeCompletionProvider$JPACodeCompletionQuery.query(JPACodeCompletionProvider.java:141)
Caused: org.netbeans.modules.parsing.spi.ParseException
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:209)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:104)
   at org.netbeans.modules.editor.java.JavaCompletionProvider$JavaCompletionQuery.query(JavaCompletionProvider.java:261)
   at org.netbeans.spi.editor.completion.support.AsyncCompletionTask.run(AsyncCompletionTask.java:223)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)