java.lang.IllegalArgumentException: Parameter file was not normalized. Was /.. instead of /
        at org.openide.filesystems.FileUtil.toFileObject(FileUtil.java:653)
        at org.netbeans.modules.java.source.usages.fcs.FileChangeSupport$Holder.locateCurrent(FileChangeSupport.java:140)
        at org.netbeans.modules.java.source.usages.fcs.FileChangeSupport$Holder.<init>(FileChangeSupport.java:132)
        at org.netbeans.modules.java.source.usages.fcs.FileChangeSupport.addListener(FileChangeSupport.java:96)
        at org.netbeans.modules.java.source.usages.ClassPathRootsListener.handleClassPath(ClassPathRootsListener.java:221)
        at org.netbeans.modules.java.source.usages.ClassPathRootsListener.addClassPathRootsListenerImpl(ClassPathRootsListener.java:135)
        at org.netbeans.modules.java.source.usages.ClassPathRootsListener.access$000(ClassPathRootsListener.java:78)
        at org.netbeans.modules.java.source.usages.ClassPathRootsListener$1.run(ClassPathRootsListener.java:117)
        at org.netbeans.modules.java.source.usages.ClassPathRootsListener$1.run(ClassPathRootsListener.java:116)
        at org.openide.util.Mutex.readAccess(Mutex.java:327)
        at org.openide.util.Mutex$1R.run(Mutex.java:1299)
        at org.netbeans.api.project.ProjectManager$2$1.run(ProjectManager.java:120)
        at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:120)
        at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:499)
        at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:215)
        at org.netbeans.api.project.ProjectManager$2.execute(ProjectManager.java:118)
        at org.openide.util.Mutex.doWrapperAccess(Mutex.java:1320)
        at org.openide.util.Mutex.readAccess(Mutex.java:275)
        at org.netbeans.modules.java.source.usages.ClassPathRootsListener.addClassPathRootsListener(ClassPathRootsListener.java:115)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater.registerClassPath(RepositoryUpdater.java:717)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater.access$5000(RepositoryUpdater.java:159)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.updateFolder(RepositoryUpdater.java:2198)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.scanRoots(RepositoryUpdater.java:1785)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.access$2500(RepositoryUpdater.java:1237)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker$1.run(RepositoryUpdater.java:1385)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker$1.run(RepositoryUpdater.java:1279)
        at org.netbeans.modules.java.source.usages.ClassIndexManager.writeLock(ClassIndexManager.java:105)
        at org.netbeans.modules.java.source.usages.RepositoryUpdater$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$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)