code: public void setShowTitle(boolean showTitle) {
          if (showTitle) {
              this.attributes.put(SHOW_TITLE, true);
              this.attributes.remove(NOTITLE);
          } else {
              this.attributes.put(NOTITLE, true);
              this.attributes.remove(SHOW_TITLE);
          }
      }
docs: Sets showtitle value as an alias for notitle!
  
  @param showTitle
  value.