code: public void setAdditionalText(String text) {
  
          if (CmsStringUtil.isEmpty(text)) {
              m_additionalText.setVisible(false);
          } else {
              m_additionalText.setValue(text);
              m_additionalText.setVisible(true);
          }
      }
docs: Displays an additional message.<p>
  
  @param text the message