[Issue 6433] Exception is raised when displaying a usecase diagram at the first time when argouml lauches

http://argouml.tigris.org/issues/show_bug.cgi?id=6433






------- Additional comments from [email protected] Fri May 18 20:19:46 -0700 2012 -------
It is more possible this error is caused due to the Activity diagram. I just
created another file and put some use case symbols and activity symbols in Use
Case and Activity Diagram individually. Then restart ArgoUML and load that file,
following exception raised

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
	at org.tigris.gef.presentation.FigText.stuffMinimumSize(FigText.java:913)
	at org.tigris.gef.presentation.FigText.getMinimumSize(FigText.java:897)
	at
org.argouml.uml.diagram.activity.ui.FigActionState.getMinimumSize(FigActionState.java:160)
	at
org.argouml.uml.diagram.ui.FigNodeModelElement.updateBounds(FigNodeModelElement.java:1096)
	at
org.argouml.uml.diagram.ui.FigNodeModelElement.updateNameText(FigNodeModelElement.java:1627)
	at
org.argouml.uml.diagram.ui.FigNodeModelElement.updateLayout(FigNodeModelElement.java:1471)
	at
org.argouml.uml.diagram.ui.FigNodeModelElement$1.run(FigNodeModelElement.java:1185)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:705)
	at java.awt.EventQueue.access$000(EventQueue.java:101)
	at java.awt.EventQueue$3.run(EventQueue.java:666)
	at java.awt.EventQueue$3.run(EventQueue.java:664)
	at java.security.AccessController.doPrivileged(Native Method)
	at
java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:675)
	at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
	at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

This also contains 

at
org.argouml.uml.diagram.activity.ui.FigActionState.getMinimumSize(FigActionState.java:160)

This might be similar with my previous issue.

I'm being on another laptop now. So, I'll try your gef file later, and let u
know the the result.
Thanks!

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