java.lang.NullPointerException
   at com.sun.source.util.TreePath.<init>(TreePath.java:94)
   at org.netbeans.modules.java.source.matching.CopyFinder.checkListsWithMultistatementTrees(CopyFinder.java:724)
   at org.netbeans.modules.java.source.matching.CopyFinder.checkLists(CopyFinder.java:594)
   at org.netbeans.modules.java.source.matching.CopyFinder.visitBlock(CopyFinder.java:759)
   at org.netbeans.modules.java.source.matching.CopyFinder.visitBlock(CopyFinder.java:112)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:795)
   at com.sun.source.util.TreeScanner.scan(TreeScanner.java:76)
   at org.netbeans.modules.java.source.matching.CopyFinder.doSuperScan(CopyFinder.java:553)
   at org.netbeans.modules.java.source.matching.CopyFinder.superScan(CopyFinder.java:545)
   at org.netbeans.modules.java.source.matching.CopyFinder.scan(CopyFinder.java:440)
   at org.netbeans.modules.java.source.matching.CopyFinder.scan(CopyFinder.java:310)
   at org.netbeans.modules.java.source.matching.CopyFinder.internalComputeDuplicates(CopyFinder.java:177)
   at org.netbeans.api.java.source.matching.Matcher.match(Matcher.java:189)
   at org.netbeans.spi.java.hints.MatcherUtilities.matches(MatcherUtilities.java:85)
   at org.netbeans.spi.java.hints.MatcherUtilities.matches(MatcherUtilities.java:73)
   at org.netbeans.modules.java.hints.jdk.ConvertToARM.hint1Impl(ConvertToARM.java:188)
   at org.netbeans.modules.java.hints.jdk.ConvertToARM.hint11(ConvertToARM.java:160)
Caused: java.lang.reflect.InvocationTargetException
   at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:299)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:751)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.doComputeHints(HintsInvoker.java:528)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:282)
   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:204)
   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:147)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:113)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:83)
   at org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:298)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:558)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:734)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
   at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
   at java.util.concurrent.FutureTask.run(FutureTask.java:138)
   at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
   at java.lang.Thread.run(Thread.java:662)