java.lang.NullPointerException
   at org.openide.nodes.EntrySupport$Lazy.removeEntries(EntrySupport.java:1800)
   at org.openide.nodes.EntrySupport$Lazy.setEntries(EntrySupport.java:1411)
   at org.openide.nodes.EntrySupport.setEntries(EntrySupport.java:102)
   at org.openide.nodes.Children$Keys$2.run(Children.java:1555)
   at org.openide.util.Mutex$1Exec.run(Mutex.java:1244)
   at org.openide.nodes.Children$ProjectManagerDeadlockDetector.execute(Children.java:1920)
   at org.openide.util.Mutex.postRequest(Mutex.java:1250)
   at org.openide.util.Mutex.postRequest(Mutex.java:1213)
   at org.openide.util.Mutex.postWriteRequest(Mutex.java:585)
   at org.openide.nodes.Children$Keys.applyKeys(Children.java:1564)
   at org.openide.nodes.Children$Keys.setKeys(Children.java:1508)
   at org.openide.loaders.FolderChildren.access$600(FolderChildren.java:73)
   at org.openide.loaders.FolderChildren$1R.run(FolderChildren.java:188)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:421)
   at org.openide.loaders.FolderChildren.refreshChildren(FolderChildren.java:205)
   at org.openide.loaders.FolderChildren.propertyChange(FolderChildren.java:139)
   at org.openide.util.WeakListenerImpl$PropertyChange.propertyChange(WeakListenerImpl.java:196)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
   at org.openide.loaders.FolderList.refresh(FolderList.java:380)
   at org.openide.loaders.FolderList.fileDeleted(FolderList.java:501)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:457)
   at $Proxy1.fileDeleted(.java:0)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEventImpl(FCLSupport.java:148)
   at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEvent(FCLSupport.java:128)
   at org.openide.filesystems.FCLSupport.dispatchEvent(FCLSupport.java:105)
   at org.openide.filesystems.FileObject$ED.dispatch(FileObject.java:1242)
   at org.openide.filesystems.FileSystem$EventDispatcher.run(FileSystem.java:973)
   at org.openide.filesystems.EventControl.dispatchEvent(EventControl.java:84)
   at org.openide.filesystems.FileSystem.dispatchEvent(FileSystem.java:618)
   at org.openide.filesystems.FileObject.dispatchEvent(FileObject.java:564)
   at org.openide.filesystems.FileObject.fireFileDeletedEvent(FileObject.java:540)
   at org.netbeans.modules.remote.impl.fs.RemoteFileObject.fireFileDeletedEvent(RemoteFileObject.java:181)
   at org.netbeans.modules.remote.impl.fs.RemoteDirectory.fireDeletedEvent(RemoteDirectory.java:1132)
   at org.netbeans.modules.remote.impl.fs.RemoteDirectory.getDirectoryStorageImpl(RemoteDirectory.java:1100)
   at org.netbeans.modules.remote.impl.fs.RemoteDirectory.refreshDirectoryStorage(RemoteDirectory.java:473)
   at org.netbeans.modules.remote.impl.fs.RemoteDirectory.refreshImpl(RemoteDirectory.java:1290)
   at org.netbeans.modules.remote.impl.fs.RefreshManager$RefreshWorker.run(RefreshManager.java:99)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1404)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1984)