java.lang.IndexOutOfBoundsException: -1
   at com.sun.tools.javac.util.List.get(List.java:455)
   at org.netbeans.modules.java.hints.jdk.ConvertToLambdaPreconditionChecker.findExpectedType(ConvertToLambdaPreconditionChecker.java:475)
   at org.netbeans.modules.java.hints.jdk.ConvertToLambdaPreconditionChecker.needsCastToSupertype(ConvertToLambdaPreconditionChecker.java:431)
   at org.netbeans.modules.java.hints.jdk.ConvertToLambdaPreconditionChecker.checkForTypeMismatch(ConvertToLambdaPreconditionChecker.java:166)
   at org.netbeans.modules.java.hints.jdk.ConvertToLambdaPreconditionChecker.ensurePreconditionsAreChecked(ConvertToLambdaPreconditionChecker.java:119)
   at org.netbeans.modules.java.hints.jdk.ConvertToLambdaPreconditionChecker.foundRefToThisOrSuper(ConvertToLambdaPreconditionChecker.java:137)
   at org.netbeans.modules.java.hints.jdk.ConvertToLambdaPreconditionChecker.passesFatalPreconditions(ConvertToLambdaPreconditionChecker.java:126)
   at org.netbeans.modules.java.hints.jdk.ConvertToLambda.cannotBeConverted(ConvertToLambda.java:109)
   at org.netbeans.modules.java.hints.jdk.ConvertToLambda.compute(ConvertToLambda.java:95)
   at sun.reflect.GeneratedMethodAccessor447.invoke(GeneratedMethodAccessor447.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:601)
   at org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:332)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:786)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.doComputeHints(HintsInvoker.java:563)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsInSpan(HintsInvoker.java:355)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:233)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:207)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:180)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:149)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask$HintPositionRefresherHelper.getErrorDescriptionsAt(HintsTask.java:205)
   at org.netbeans.modules.java.hints.spiimpl.JavaHintsPositionRefresher$RefreshTask.run(JavaHintsPositionRefresher.java:151)
   at org.netbeans.modules.java.hints.spiimpl.JavaHintsPositionRefresher$RefreshTask.run(JavaHintsPositionRefresher.java:121)
   at org.netbeans.api.java.source.JavaSource$MultiTask.run(JavaSource.java:488)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
   at org.netbeans.modules.parsing.api.ParserManager$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.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:438)
   at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:409)
   at org.netbeans.modules.java.hints.spiimpl.JavaHintsPositionRefresher$1.run(JavaHintsPositionRefresher.java:108)
   at org.netbeans.modules.progress.ui.RunOffEDTImpl$1.run(RunOffEDTImpl.java:150)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)