java.lang.OutOfMemoryError: GC overhead limit exceeded
   at java.lang.String.toLowerCase(String.java:2577)
   at java.io.WinNTFileSystem.hashCode(WinNTFileSystem.java:640)
   at java.io.File.hashCode(File.java:2132)
   at java.util.HashMap.hash(HashMap.java:338)
   at java.util.HashMap.get(HashMap.java:556)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.getInstance(FileObjectFactory.java:128)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectFactory.getInstance(FileObjectFactory.java:119)
   at org.netbeans.modules.masterfs.filebasedfs.FileBasedFileSystem.getFileObject(FileBasedFileSystem.java:136)
   at org.netbeans.modules.masterfs.filebasedfs.FileBasedURLMapper.getFileObjects(FileBasedURLMapper.java:107)
   at org.netbeans.modules.masterfs.MasterURLMapper.getFileObjects(MasterURLMapper.java:65)
   at org.openide.filesystems.URLMapper.findFileObject(URLMapper.java:213)
   at org.openide.filesystems.FileUtil.toFileObject(FileUtil.java:889)
   at org.openide.filesystems.FileChangeImpl.locateCurrent(FileChangeImpl.java:78)
   at org.openide.filesystems.FileChangeImpl.someChange(FileChangeImpl.java:113)
   at org.openide.filesystems.FileChangeImpl.fileDeleted(FileChangeImpl.java:152)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEventImpl(FCLSupport.java:181)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapperSingle.dispatchAllEventsSync(FCLSupport.java:224)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEvent(FCLSupport.java:137)
   at org.openide.filesystems.FCLSupport.dispatchEvent(FCLSupport.java:105)
   at org.openide.filesystems.FileObject$ED.dispatch(FileObject.java:1318)
   at org.openide.filesystems.FileSystem$EventDispatcher.run(FileSystem.java:1031)
   at org.openide.filesystems.EventControl.dispatchEvent(EventControl.java:84)
   at org.openide.filesystems.FileSystem.dispatchEvent(FileSystem.java:676)
   at org.openide.filesystems.FileObject.dispatchEvent(FileObject.java:635)
   at org.openide.filesystems.FileObject.fireFileDeletedEvent(FileObject.java:611)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.fireFileDeletedEvent(BaseFileObj.java:736)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refreshImpl(FolderObj.java:523)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.BaseFileObj.refresh(BaseFileObj.java:857)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FolderObj.refresh(FolderObj.java:562)
   at org.openide.filesystems.FileObject.refresh(FileObject.java:1206)
   at org.netbeans.modules.masterfs.watcher.Watcher$1.run(Watcher.java:422)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)