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via Stack Overflow by R. Wang
, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at com.codename1.apps.guibuilder.GUIBuilder$1.actionPerformed(	at com.codename1.ui.util.EventDispatcher.fireActionEvent(	at com.codename1.ui.Display.mainEDTLoop(	at	at