java.lang.NullPointerException
        at org.netbeans.modules.visualweb.insync.models.FacesModel.openJavaUnits(FacesModel.java:768)
        at org.netbeans.modules.visualweb.insync.models.FacesModel.syncImpl(FacesModel.java:1061)
        at org.netbeans.modules.visualweb.insync.Model.sync(Model.java:219)
        at org.netbeans.modules.visualweb.insync.models.FacesModel.fileRenamed(FacesModel.java:925)
        at org.netbeans.modules.visualweb.insync.ModelSet.fileRenamed(ModelSet.java:1050)
        at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEventImpl(FCLSupport.java:142)
        at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEvent(FCLSupport.java:122)
        at org.openide.filesystems.FCLSupport.dispatchEvent(FCLSupport.java:99)
        at org.openide.filesystems.FileObject$ED.dispatch(FileObject.java:953)
        at org.openide.filesystems.EventControl.invokeDispatchers(EventControl.java:203)
        at org.openide.filesystems.EventControl.exitAtomicAction(EventControl.java:177)
        at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:122)
        at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:502)
        at org.openide.loaders.DataObjectPool.runAtomicAction(DataObjectPool.java:270)
        at org.openide.loaders.DataObject.invokeAtomicAction(DataObject.java:869)
        at org.openide.loaders.DataObject.rename(DataObject.java:666)
        at org.openide.loaders.DataNode$3.setValue(DataNode.java:635)
        at org.openide.loaders.DataNode$3.setValue(DataNode.java:659)
        at org.openide.explorer.propertysheet.NodePropertyModel.setValue(NodePropertyModel.java:110)
        at org.openide.explorer.propertysheet.PropUtils.noDlgUpdateProp(PropUtils.java:560)
        at org.openide.explorer.propertysheet.PropUtils.updateProp(PropUtils.java:521)
        at org.openide.explorer.propertysheet.PropUtils.updateProp(PropUtils.java:641)
        at org.openide.explorer.propertysheet.SheetCellEditor.stopCellEditing(SheetCellEditor.java:374)
        at org.openide.explorer.propertysheet.SheetCellEditor.actionPerformed(SheetCellEditor.java:241)
        at javax.swing.JTextField.fireActionPerformed(JTextField.java:487)
        at javax.swing.JTextField.postActionEvent(JTextField.java:668)
        at javax.swing.JTextField$NotifyAction.actionPerformed(JTextField.java:783)
        at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1576)
        at javax.swing.JComponent.processKeyBinding(JComponent.java:2772)
        at javax.swing.JComponent.processKeyBindings(JComponent.java:2807)
        at javax.swing.JComponent.processKeyEvent(JComponent.java:2735)
        at java.awt.Component.processEvent(Component.java:5360)
        at java.awt.Container.processEvent(Container.java:2010)
        at java.awt.Component.dispatchEventImpl(Component.java:4050)
        at java.awt.Container.dispatchEventImpl(Container.java:2068)
        at java.awt.Component.dispatchEvent(Component.java:3885)
        at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1826)
        at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:681)
        at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:938)
        at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:810)
        at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:645)
        at java.awt.Component.dispatchEventImpl(Component.java:3923)
        at java.awt.Container.dispatchEventImpl(Container.java:2068)
        at java.awt.Window.dispatchEventImpl(Window.java:1791)
        at java.awt.Component.dispatchEvent(Component.java:3885)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)