java.lang.NullPointerException
   at org.netbeans.modules.java.hints.ConvertAnonymousToInner.run(ConvertAnonymousToInner.java:169)
   at org.netbeans.modules.java.hints.infrastructure.RulesManager$WorkerImpl.createErrors(RulesManager.java:406)
   at org.netbeans.modules.java.hints.jackpot.impl.hints.HintsInvoker.runHint(HintsInvoker.java:685)
   at org.netbeans.modules.java.hints.jackpot.impl.hints.HintsInvoker.access$000(HintsInvoker.java:103)
   at org.netbeans.modules.java.hints.jackpot.impl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:552)
   at org.netbeans.modules.java.hints.jackpot.impl.hints.HintsInvoker$ScannerImpl.scanDoNotGoDeeper(HintsInvoker.java:606)
   at org.netbeans.modules.java.hints.jackpot.impl.hints.HintsInvoker.computeSuggestions(HintsInvoker.java:342)
   at org.netbeans.modules.java.hints.jackpot.impl.hints.HintsInvoker.compute(HintsInvoker.java:205)
   at org.netbeans.modules.java.hints.jackpot.impl.hints.HintsInvoker.computeHints(HintsInvoker.java:178)
   at org.netbeans.modules.java.hints.jackpot.impl.hints.HintsInvoker.computeHints(HintsInvoker.java:134)
   at org.netbeans.modules.java.hints.infrastructure.JavaHintsPositionRefresher$RefreshTask.run(JavaHintsPositionRefresher.java:147)
   at org.netbeans.modules.java.hints.infrastructure.JavaHintsPositionRefresher$RefreshTask.run(JavaHintsPositionRefresher.java:113)
   at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:482)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:154)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:138)
   at org.netbeans.modules.parsing.impl.TaskProcessor$1.call(TaskProcessor.java:202)
   at org.netbeans.modules.parsing.impl.TaskProcessor$1.call(TaskProcessor.java:199)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:168)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:356)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:199)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:106)
   at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:432)
   at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:403)
   at org.netbeans.modules.java.hints.infrastructure.JavaHintsPositionRefresher$1.run(JavaHintsPositionRefresher.java:100)
   at org.netbeans.modules.progress.ui.RunOffEDTImpl$1.run(RunOffEDTImpl.java:160)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)