java.lang.AssertionError at com.sun.tools.javac.code.Symbol.clone(Symbol.java:137) at com.sun.tools.javac.jvm.Gen.binaryQualifier(Gen.java:291) at com.sun.tools.javac.jvm.Gen.visitIdent(Gen.java:2101) at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:1683) at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:832) at com.sun.tools.javac.jvm.Gen.visitSelect(Gen.java:2126) at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1655) at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:832) at com.sun.tools.javac.jvm.Gen.genArgs(Gen.java:851) at com.sun.tools.javac.jvm.Gen.visitNewClass(Gen.java:1719) at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1350) at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:832) at com.sun.tools.javac.jvm.Gen.visitVarDef(Gen.java:1014) at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:713) at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:679) at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:714) at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:700) at com.sun.tools.javac.jvm.Gen.genStats(Gen.java:751) at com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1027) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:769) at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:679) at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:714) at com.sun.tools.javac.jvm.Gen.genMethod(Gen.java:907) at com.sun.tools.javac.jvm.Gen.visitMethodDef(Gen.java:880) at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:657) at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:679) at com.sun.tools.javac.jvm.Gen.genClass(Gen.java:2219) at com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:645) at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1328) at com.sun.tools.javac.api.JavacTaskImpl.generate(JavacTaskImpl.java:503) at com.sun.tools.javac.api.JavacTaskImpl.generate(JavacTaskImpl.java:485) at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.updateFile(RepositoryUpdater.java:2390) at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.access$3000(RepositoryUpdater.java:1237) at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker$.run(RepositoryUpdater.java:1504) at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker$.run(RepositoryUpdater.java:1279) at org.netbeans.modules.java.source.usages.ClassIndexManager.writeLock(ClassIndexManager.java:105) at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.run(RepositoryUpdater.java:1276) at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.run(RepositoryUpdater.java:1237) at org.netbeans.api.java.source.JavaSource$CompilationJob.run(JavaSource.java:1564) 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$Worker.runTask(ThreadPoolExecutor.java:885) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) at java.lang.Thread.run(Thread.java:619)