java.lang.NullPointerException
	at org.netbeans.modules.uml.integration.netbeans.actions.ExportCodeAction.enable(ExportCodeAction.java:342)
	at org.openide.util.actions.NodeAction.isEnabled(NodeAction.java:176)
	at org.netbeans.modules.uml.ui.swing.drawingarea.ADDrawingAreaControl.addAddinMenus(ADDrawingAreaControl.java:9140)
	at org.netbeans.modules.uml.ui.swing.drawingarea.ADDrawingAreaControl.menuAboutToShow(ADDrawingAreaControl.java:9104)
	at org.netbeans.modules.uml.ui.swing.drawingarea.ADDrawingAreaControl.showPopupMenu(ADDrawingAreaControl.java:8868)
	at org.netbeans.modules.uml.ui.swing.drawingarea.ADDrawingAreaControl.access$600(ADDrawingAreaControl.java:333)
	at org.netbeans.modules.uml.ui.swing.drawingarea.ADDrawingAreaControl$MouseHandler.mouseReleased(ADDrawingAreaControl.java:8982)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:232)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231)
	at java.awt.Component.processMouseEvent(Component.java:5488)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3126)
	at java.awt.Component.processEvent(Component.java:5253)
	at java.awt.Container.processEvent(Container.java:1966)
	at java.awt.Component.dispatchEventImpl(Component.java:3955)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
	at java.awt.Container.dispatchEventImpl(Container.java:2010)
	at java.awt.Window.dispatchEventImpl(Window.java:1774)
	at java.awt.Component.dispatchEvent(Component.java:3803)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)