java.lang.AssertionError
   at com.sun.tools.javac.util.Bits.incl(Bits.java:88)
   at com.sun.tools.javac.comp.Flow.checkInit(Flow.java:431)
   at com.sun.tools.javac.comp.Flow.visitIdent(Flow.java:1414)
   at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:1717)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.tree.TreeScanner.visitSelect(TreeScanner.java:258)
   at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1689)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanExpr(Flow.java:545)
   at com.sun.tools.javac.comp.Flow.visitApply(Flow.java:1285)
   at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1329)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanExpr(Flow.java:545)
   at com.sun.tools.javac.comp.Flow.visitVarDef(Flow.java:820)
   at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:733)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanStat(Flow.java:529)
   at com.sun.tools.javac.comp.Flow.scanStats(Flow.java:537)
   at com.sun.tools.javac.comp.Flow.visitSwitch(Flow.java:1000)
   at com.sun.tools.javac.tree.JCTree$JCSwitch.accept(JCTree.java:967)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanStat(Flow.java:529)
   at com.sun.tools.javac.comp.Flow.scanStats(Flow.java:537)
   at com.sun.tools.javac.comp.Flow.visitBlock(Flow.java:830)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:789)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanStat(Flow.java:529)
   at com.sun.tools.javac.comp.Flow.visitMethodDef(Flow.java:758)
   at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:676)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.visitClassDef(Flow.java:688)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:594)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.scanStat(Flow.java:529)
   at com.sun.tools.javac.comp.Flow.scanDef(Flow.java:515)
   at com.sun.tools.javac.comp.Flow.visitClassDef(Flow.java:626)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:594)
   at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
   at com.sun.tools.javac.comp.Flow.analyzeTree(Flow.java:1529)
   at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1303)
   at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1274)
   at com.sun.tools.javac.api.JavacTaskImpl$2.process(JavacTaskImpl.java:480)
   at com.sun.tools.javac.api.JavacTaskImpl$Filter.run(JavacTaskImpl.java:631)
   at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:483)
   at org.netbeans.modules.java.source.indexing.MultiPassCompileWorker.compile(MultiPassCompileWorker.java:244)
   at org.netbeans.modules.java.source.indexing.JavaCustomIndexer$1.run(JavaCustomIndexer.java:192)
   at org.netbeans.modules.java.source.indexing.JavaCustomIndexer$1.run(JavaCustomIndexer.java:154)
   at org.netbeans.modules.java.source.usages.ClassIndexManager.prepareWriteLock(ClassIndexManager.java:120)
   at org.netbeans.modules.java.source.indexing.JavaCustomIndexer.index(JavaCustomIndexer.java:154)
   at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor$2.run(Indexable.java:175)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runIndexer(RepositoryUpdater.java:254)
   at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor.index(Indexable.java:173)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doIndex(RepositoryUpdater.java:1728)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.access$1300(RepositoryUpdater.java:1468)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$2.run(RepositoryUpdater.java:1648)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$2.run(RepositoryUpdater.java:1646)
   at org.netbeans.modules.parsing.impl.indexing.errors.TaskCache.refreshTransaction(TaskCache.java:459)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:1646)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.scanFiles(RepositoryUpdater.java:2014)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$FileListWork.getDone(RepositoryUpdater.java:2202)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:2062)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:3699)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:3638)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:610)
   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:619)