java.lang.NullPointerException
   at com.sun.tools.javac.comp.Check.localClassName(Check.java:423)
   at com.sun.tools.javac.comp.Enter.visitClassDef(Enter.java:487)
   at com.sun.tools.javadoc.JavadocEnter.visitClassDef(JavadocEnter.java:93)
   at org.netbeans.lib.nbjavac.services.NBJavadocEnter.visitClassDef(NBJavadocEnter.java:95)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:692)
   at com.sun.tools.javac.comp.Enter.classEnter(Enter.java:302)
   at com.sun.tools.javac.comp.Attr.visitClassDef(Attr.java:863)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitClassDef(NBAttr.java:70)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:692)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:671)
   at com.sun.tools.javac.comp.Attr.visitNewClass(Attr.java:2210)
   at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1516)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:602)
   at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:644)
   at org.netbeans.modules.java.hints.spiimpl.Utilities.attributeTree(Utilities.java:640)
   at org.netbeans.modules.java.hints.spiimpl.Utilities.parseAndAttribute(Utilities.java:438)
   at org.netbeans.modules.java.hints.spiimpl.Utilities.parseAndAttribute(Utilities.java:353)
   at org.netbeans.modules.java.hints.spiimpl.Utilities.parseAndAttribute(Utilities.java:333)
   at org.netbeans.modules.java.hints.spiimpl.Utilities.parseAndAttribute(Utilities.java:329)
   at org.netbeans.modules.java.hints.spiimpl.pm.PatternCompiler.compile(PatternCompiler.java:67)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.doComputeHints(HintsInvoker.java:546)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeSuggestions(HintsInvoker.java:461)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:232)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:209)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:182)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:149)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:83)
   at org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:298)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:568)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:744)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
   at java.util.concurrent.FutureTask.run(FutureTask.java:166)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)