code: public void setTitle(final String TITLE) {
          if (null == title) {
              _title = null == TITLE ? "" : TITLE;
              fireTileEvent(VISIBILITY_EVENT);
              fireTileEvent(REDRAW_EVENT);
          } else {
              title.set(TITLE);
          }
      }
docs: Sets the title of the gauge. This title will only be visible
  if it is not empty.
  
  @param TITLE