code: public void setStatusBarMessage(final String message)
      {
          // Guaranteed to return a non-null array
          Object[] listeners = listenerList.getListenerList();
          // Process the listeners last to first, notifying
          // those that are interested in this event
          for (int i = listeners.length-2; i>=0; i-=2) {
              if (listeners[i]==StatusMessageListener.class) 
              {
                  ((StatusMessageListener)listeners[i+1]).statusMessageReceived(message);
              }          
          }        
      }
docs: Set a status message in the JTextComponent passed to this
  model.
  @param message The message that should be displayed.