java.lang.NullPointerException
   at com.sun.source.util.TreePath.<init>(TreePath.java:112)
   at org.netbeans.modules.java.source.matching.CopyFinder.checkListsWithMultistatementTrees(CopyFinder.java:762)
   at org.netbeans.modules.java.source.matching.CopyFinder.checkLists(CopyFinder.java:631)
   at org.netbeans.modules.java.source.matching.CopyFinder.visitBlock(CopyFinder.java:808)
   at org.netbeans.modules.java.source.matching.CopyFinder.visitBlock(CopyFinder.java:120)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1002)
   at com.sun.source.util.TreeScanner.scan(TreeScanner.java:87)
   at org.netbeans.modules.java.source.matching.CopyFinder.doSuperScan(CopyFinder.java:590)
   at org.netbeans.modules.java.source.matching.CopyFinder.superScan(CopyFinder.java:582)
   at org.netbeans.modules.java.source.matching.CopyFinder.scan(CopyFinder.java:477)
   at org.netbeans.modules.java.source.matching.CopyFinder.scan(CopyFinder.java:318)
   at org.netbeans.modules.java.source.matching.CopyFinder.internalComputeDuplicates(CopyFinder.java:185)
   at org.netbeans.api.java.source.matching.Matcher.match(Matcher.java:189)
   at org.netbeans.spi.java.hints.MatcherUtilities.matches(MatcherUtilities.java:91)
   at org.netbeans.spi.java.hints.MatcherUtilities.matches(MatcherUtilities.java:82)
   at org.netbeans.spi.java.hints.MatcherUtilities.matches(MatcherUtilities.java:73)
   at org.netbeans.modules.java.hints.jdk.ConvertToARM.hint1Impl(ConvertToARM.java:235)
   at org.netbeans.modules.java.hints.jdk.ConvertToARM.hint11(ConvertToARM.java:216)
   at sun.reflect.GeneratedMethodAccessor1015.invoke(GeneratedMethodAccessor1015.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:520)
   at org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:339)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:810)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.doComputeHints(HintsInvoker.java:575)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:295)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:240)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:210)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:183)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:150)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:137)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:88)
   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$RunnableAdapter.call(Executors.java:514)
   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
   at org.openide.util.RequestProcessor$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)