org.openide.filesystems.FileStateInvalidException: MasterFileObject@7b6837[C:/NBprojects/WebApplication3/test]
	at org.openide.loaders.DataObject.find(DataObject.java:452)
Caused: org.openide.loaders.DataObjectNotFoundException: MasterFileObject@7b6837[C:/NBprojects/WebApplication3/test]
	at org.openide.loaders.DataObject.find(DataObject.java:472)
	at org.netbeans.modules.openide.loaders.DataObjectEncodingQueryImplementation.getEncoding(DataObjectEncodingQueryImplementation.java:57)
	at org.netbeans.api.queries.FileEncodingQuery.getEncoding(FileEncodingQuery.java:70)
	at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.parseFiles(RepositoryUpdater.java:1326)
	at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.updateFolder(RepositoryUpdater.java:1473)
	at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.access$400(RepositoryUpdater.java:867)
	at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker$1.run(RepositoryUpdater.java:1059)
	at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker$1.run(RepositoryUpdater.java:896)
	at org.netbeans.modules.java.source.usages.ClassIndexManager.writeLock(ClassIndexManager.java:78)
	at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.run(RepositoryUpdater.java:893)
	at org.netbeans.modules.java.source.usages.RepositoryUpdater$CompileWorker.run(RepositoryUpdater.java:867)
	at org.netbeans.api.java.source.JavaSource$CompilationJob.run(JavaSource.java:1320)
	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)
[catch] at java.lang.Thread.run(Thread.java:619)