com.sun.tools.javac.jvm.ClassReader$BadClassFile: bad class file: package-info.class
  unable to access file: /export1/home/alsimon/cnd-main/libs.junit4/external/junit-4.10.jar (No such file or directory)
  Please remove or make sure it appears in the correct subdirectory of the classpath.
   at com.sun.tools.javac.jvm.ClassReader.badClassFile(ClassReader.java:360)
   at com.sun.tools.javac.jvm.ClassReader.fillIn(ClassReader.java:2598)
   at com.sun.tools.javac.jvm.ClassReader.complete(ClassReader.java:2484)
   at com.sun.tools.javac.jvm.ClassReader.access$000(ClassReader.java:77)
   at com.sun.tools.javac.jvm.ClassReader$1.complete(ClassReader.java:244)
   at com.sun.tools.javac.code.Symbol.complete(Symbol.java:577)
   at com.sun.tools.javac.code.Symbol$ClassSymbol.complete(Symbol.java:1053)
   at com.sun.tools.javac.code.Symbol$PackageSymbol.getRawAttributes(Symbol.java:879)
   at com.sun.tools.javac.code.Symbol.getAnnotationMirrors(Symbol.java:613)
   at com.sun.tools.javac.code.Symbol$TypeSymbol.getAnnotationMirrors(Symbol.java:675)
   at org.netbeans.modules.java.hints.bugs.NPECheck.getStateFromAnnotations(NPECheck.java:378)
   at org.netbeans.modules.java.hints.bugs.NPECheck.getStateFromAnnotations(NPECheck.java:368)
   at org.netbeans.modules.java.hints.bugs.NPECheck.access$100(NPECheck.java:75)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitMemberSelect(NPECheck.java:592)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitMemberSelect(NPECheck.java:403)
   at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1909)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.scan(NPECheck.java:482)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitMemberSelect(NPECheck.java:579)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitMemberSelect(NPECheck.java:403)
   at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1909)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.scan(NPECheck.java:482)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitMemberSelect(NPECheck.java:579)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitMemberSelect(NPECheck.java:403)
   at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1909)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.scan(NPECheck.java:482)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.scan(NPECheck.java:403)
   at com.sun.source.util.TreeScanner.visitImport(TreeScanner.java:125)
   at com.sun.tools.javac.tree.JCTree$JCImport.accept(JCTree.java:580)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.scan(NPECheck.java:482)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.scan(NPECheck.java:403)
   at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:81)
   at com.sun.source.util.TreeScanner.scan(TreeScanner.java:91)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:103)
   at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:99)
   at com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:119)
   at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:551)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94)
   at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.scan(NPECheck.java:482)
   at org.netbeans.modules.java.hints.bugs.NPECheck.computeExpressionsState(NPECheck.java:361)
   at org.netbeans.modules.java.hints.bugs.NPECheck.methodInvocation(NPECheck.java:176)
   at sun.reflect.GeneratedMethodAccessor101.invoke(GeneratedMethodAccessor101.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:606)
   at org.netbeans.modules.java.hints.providers.code.CodeHintProviderImpl$WorkerImpl.createErrors(CodeHintProviderImpl.java:336)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.runHint(HintsInvoker.java:798)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.access$400(HintsInvoker.java:111)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.runAndAdd(HintsInvoker.java:657)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:676)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:614)
   at com.sun.source.util.TreeScanner.visitExpressionStatement(TreeScanner.java:243)
   at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1308)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:614)
   at com.sun.source.util.TreeScanner.scan(TreeScanner.java:91)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:103)
   at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:162)
   at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:924)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:614)
   at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:81)
   at com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:144)
   at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:806)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:614)
   at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:81)
   at com.sun.source.util.TreeScanner.scan(TreeScanner.java:91)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:103)
   at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:99)
   at com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:133)
   at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:725)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:68)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:94)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:682)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:614)
   at com.sun.source.util.TreeScanner.scan(TreeScanner.java:91)
   at org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:103)
   at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:99)
   at com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:120)
   at com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:551)
   at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:50)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker$ScannerImpl.scan(HintsInvoker.java:701)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHintsImpl(HintsInvoker.java:256)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:239)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:209)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:182)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:149)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:114)
   at org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:83)
   at org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:298)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:573)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:744)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
   at java.util.concurrent.FutureTask.run(FutureTask.java:262)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)