java.lang.NullPointerException
   at com.sun.tools.javac.comp.Check.validateAnnotation(Check.java:2890)
   at com.sun.tools.javac.comp.Check.validateAnnotations(Check.java:2875)
   at com.sun.tools.javac.comp.Annotate.lambda$annotateLater$1(Annotate.java:272)
   at com.sun.tools.javac.comp.Annotate.flush(Annotate.java:193)
   at com.sun.tools.javac.code.ClassFinder.complete(ClassFinder.java:312)
   at com.sun.tools.javac.code.Symbol.complete(Symbol.java:636)
   at com.sun.tools.javac.code.Symbol$ClassSymbol.complete(Symbol.java:1327)
   at com.sun.tools.javac.jvm.ClassReader$1.getEnclosingType(ClassReader.java:806)
   at com.sun.tools.javac.code.Type$StructuralTypeMapping.visitClassType(Type.java:234)
   at com.sun.tools.javac.code.Types$Subst.visitClassType(Types.java:3230)
   at com.sun.tools.javac.code.Types$Subst.visitClassType(Types.java:3196)
   at com.sun.tools.javac.code.Type$ClassType.accept(Type.java:992)
   at com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:4794)
   at com.sun.tools.javac.code.Types$TypeMapping.lambda$visit$0(Types.java:4902)
   at com.sun.tools.javac.util.List.map(List.java:425)
   at com.sun.tools.javac.code.Types$TypeMapping.visit(Types.java:4902)
   at com.sun.tools.javac.code.Type$StructuralTypeMapping.visitMethodType(Type.java:281)
   at com.sun.tools.javac.code.Type$StructuralTypeMapping.visitMethodType(Type.java:230)
   at com.sun.tools.javac.code.Type$MethodType.accept(Type.java:1452)
   at com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:4794)
   at com.sun.tools.javac.code.Type.map(Type.java:310)
   at com.sun.tools.javac.code.Types.subst(Types.java:3193)
   at com.sun.tools.javac.code.Types$HasSameArgs.visitForAll(Types.java:3165)
   at com.sun.tools.javac.code.Types$HasSameArgs.visitForAll(Types.java:3140)
   at com.sun.tools.javac.code.Type$ForAll.accept(Type.java:1807)
   at com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:4794)
   at com.sun.tools.javac.code.Types.hasSameArgs(Types.java:3137)
   at com.sun.tools.javac.code.Types.hasSameArgs(Types.java:3133)
   at com.sun.tools.javac.code.Types.isSubSignature(Types.java:2672)
   at com.sun.tools.javac.code.Types.isSubSignature(Types.java:2668)
   at com.sun.tools.javac.model.JavacElements.hides(JavacElements.java:710)
   at org.netbeans.api.java.source.ElementUtilities.isHidden(ElementUtilities.java:583)
   at org.netbeans.api.java.source.ElementUtilities.getLocalMembersAndVars(ElementUtilities.java:485)
   at org.netbeans.modules.javahints.TypoDetector.run(TypoDetector.java:167)
   at org.netbeans.modules.java.hints.infrastructure.CreatorBasedLazyFixList.compute(CreatorBasedLazyFixList.java:148)
   at org.netbeans.modules.java.hints.infrastructure.LazyHintComputation.run(LazyHintComputation.java:112)
   at org.netbeans.modules.java.hints.infrastructure.LazyHintComputation.run(LazyHintComputation.java:58)
   at org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:298)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:584)
   at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:809)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:304)
   at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:725)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:686)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
   at org.openide.util.RequestProcessor$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)