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via Oracle Community by 807595, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at SkelAppIPCanvas.addConstant(	at SkelAppIPFrame$SkelApp2DGMenuDispatcher.serviceMenuEvent(	at SkelAppIPFrame$SkelApp2DGMenuDispatcher.actionPerformed(	at java.awt.MenuItem.processActionEvent(	at java.awt.MenuItem.processEvent(	at java.awt.MenuComponent.dispatchEventImpl(	at java.awt.MenuComponent.dispatchEvent(	at java.awt.EventQueue.dispatchEvent(	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(	at java.awt.EventDispatchThread.pumpEventsForHierarchy(	at java.awt.EventDispatchThread.pumpEvents(	at