java.lang.NullPointerException at com.sun.tools.javac.comp.Lower.accessClass(Lower.java:1026) at com.sun.tools.javac.comp.Lower.accessSymbol(Lower.java:889) at com.sun.tools.javac.comp.Lower.access(Lower.java:1124) at com.sun.tools.javac.comp.Lower.visitIdent(Lower.java:3163) at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:1708) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.comp.Lower.visitApply(Lower.java:2855) at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1324) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.tree.TreeTranslator.visitExec(TreeTranslator.java:243) at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1170) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:70) at com.sun.tools.javac.tree.TreeTranslator.visitBlock(TreeTranslator.java:160) at com.sun.tools.javac.comp.Lower.visitBlock(Lower.java:3347) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:784) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.tree.TreeTranslator.visitMethodDef(TreeTranslator.java:144) at com.sun.tools.javac.comp.Lower.visitMethodDefInternal(Lower.java:2643) at com.sun.tools.javac.comp.Lower.visitMethodDef(Lower.java:2561) at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:672) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.comp.Lower.visitClassDef(Lower.java:2304) at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:593) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.comp.Lower.visitNewClass(Lower.java:2702) at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1375) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2185) at com.sun.tools.javac.comp.Lower.visitAssign(Lower.java:2997) at com.sun.tools.javac.tree.JCTree$JCAssign.accept(JCTree.java:1469) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.tree.TreeTranslator.visitExec(TreeTranslator.java:243) at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1170) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.comp.Lower.visitIf(Lower.java:2759) at com.sun.tools.javac.tree.JCTree$JCIf.accept(JCTree.java:1143) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:70) at com.sun.tools.javac.tree.TreeTranslator.visitBlock(TreeTranslator.java:160) at com.sun.tools.javac.comp.Lower.visitBlock(Lower.java:3347) at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:784) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.tree.TreeTranslator.visitMethodDef(TreeTranslator.java:144) at com.sun.tools.javac.comp.Lower.visitMethodDefInternal(Lower.java:2643) at com.sun.tools.javac.comp.Lower.visitMethodDef(Lower.java:2561) at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:672) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.comp.Lower.visitClassDef(Lower.java:2304) at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:593) at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2173) at com.sun.tools.javac.comp.Lower.translate(Lower.java:2193) at com.sun.tools.javac.comp.Lower.translateTopLevelClass(Lower.java:3687) at com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1430) at com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1302) at com.sun.tools.javac.api.JavacTaskImpl$2.process(JavacTaskImpl.java:534) at com.sun.tools.javac.api.JavacTaskImpl$Filter.run(JavacTaskImpl.java:622) at com.sun.tools.javac.api.JavacTaskImpl.generate(JavacTaskImpl.java:537) at org.netbeans.modules.java.source.indexing.MultiPassCompileWorker.compile(MultiPassCompileWorker.java:293) at org.netbeans.modules.java.source.indexing.JavaCustomIndexer.index(JavaCustomIndexer.java:235) at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor$2.run(Indexable.java:158) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runIndexer(RepositoryUpdater.java:259) at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor.index(Indexable.java:156) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doIndex(RepositoryUpdater.java:2474) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.access$1500(RepositoryUpdater.java:2074) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$2.run(RepositoryUpdater.java:2381) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$2.run(RepositoryUpdater.java:2379) at org.netbeans.modules.parsing.impl.indexing.errors.TaskCache.refreshTransaction(TaskCache.java:541) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:2379) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSource(RepositoryUpdater.java:4796) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSources(RepositoryUpdater.java:4522) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RootsWork.getDone(RepositoryUpdater.java:4225) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:2979) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:5209) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.access$4800(RepositoryUpdater.java:4901) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2$1.run(RepositoryUpdater.java:5146) at org.netbeans.modules.parsing.impl.RunWhenScanFinishedSupport.performScan(RunWhenScanFinishedSupport.java:96) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:5142) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:5138) at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176) at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360) at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:72) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:5138) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1454) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2036)