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via Coderanch by Isaac Hewitt, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at film_titles.poster_manager.DocumentTree.treeWillExpand(Unknown Source)	at javax.swing.JTree.fireTreeWillExpand(	at javax.swing.JTree.setExpandedState(	at	at	at	at film_titles.poster_manager.DocumentTree$ Source)	at java.awt.event.InvocationEvent.dispatch(	at java.awt.EventQueue.dispatchEvent(	at java.awt.EventDispatchThread.pumpOneEventForFilters(	at java.awt.EventDispatchThread.pumpEventsForFilter(	at java.awt.EventDispatchThread.pumpEventsForHierarchy(	at java.awt.EventDispatchThread.pumpEvents(	at java.awt.EventDispatchThread.pumpEvents(	at