java.lang.NullPointerException
   at com.sun.tools.javac.comp.Check.checkHideClashes(Check.java:2511)
   at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:893)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitMethodDef(NBAttr.java:76)
   at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:784)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:572)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:641)
   at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4560)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4462)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4408)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4390)
   at com.sun.tools.javac.comp.Attr.visitClassDef(Attr.java:861)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitClassDef(NBAttr.java:70)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:698)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:572)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:641)
   at com.sun.tools.javac.comp.Attr.visitNewClass(Attr.java:2193)
   at com.sun.tools.javac.tree.JCTree$JCNewClass.accept(JCTree.java:1522)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:572)
   at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:614)
   at com.sun.tools.javac.comp.Attr.visitVarDef(Attr.java:1081)
   at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:858)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:572)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:641)
   at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:657)
   at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1130)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:82)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:915)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:572)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:641)
   at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1014)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitMethodDef(NBAttr.java:76)
   at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:784)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:572)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:641)
   at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4560)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4462)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4390)
   at com.sun.tools.javac.comp.Attr.visitClassDef(Attr.java:861)
   at org.netbeans.lib.nbjavac.services.NBAttr.visitClassDef(NBAttr.java:70)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:698)
   at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:572)
   at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:641)
   at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4560)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4462)
   at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4390)
   at com.sun.tools.javac.comp.Attr.attrib(Attr.java:4365)
   at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1317)
   at com.sun.tools.javac.api.JavacTaskImpl$1.process(JavacTaskImpl.java:473)
   at com.sun.tools.javac.api.JavacTaskImpl$Filter.run(JavacTaskImpl.java:623)
   at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:476)
   at org.netbeans.modules.java.source.indexing.MultiPassCompileWorker.compile(MultiPassCompileWorker.java:272)
   at org.netbeans.modules.java.source.indexing.JavaCustomIndexer.index(JavaCustomIndexer.java:251)
   at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor$2.run(Indexable.java:161)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runIndexer(RepositoryUpdater.java:295)
   at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor.index(Indexable.java:159)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doIndex(RepositoryUpdater.java:2744)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.access$400(RepositoryUpdater.java:2148)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$1.run(RepositoryUpdater.java:2630)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$1.run(RepositoryUpdater.java:2628)
   at org.netbeans.modules.parsing.impl.indexing.errors.TaskCache.refreshTransaction(TaskCache.java:564)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:2628)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork$4.call(RepositoryUpdater.java:5692)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork$4.call(RepositoryUpdater.java:5600)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$3.run(RepositoryUpdater.java:2121)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:304)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2117)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2098)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.access$1100(RepositoryUpdater.java:156)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSource(RepositoryUpdater.java:5727)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSources(RepositoryUpdater.java:5397)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RootsWork.getDone(RepositoryUpdater.java:5015)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:3401)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:6165)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.access$4300(RepositoryUpdater.java:5812)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$3$1.run(RepositoryUpdater.java:6083)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:304)
   at org.netbeans.modules.parsing.impl.RunWhenScanFinishedSupport.performScan(RunWhenScanFinishedSupport.java:106)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$3.call(RepositoryUpdater.java:6079)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$3.call(RepositoryUpdater.java:6075)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:141)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:88)
   at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:6075)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1440)
   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:2055)