code: public void setAppTitle(String appTitle) {
  
          if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(appTitle)) {
              m_appIndicator.setValue(appTitle);
              updateAppIndicator();
              m_appIndicator.setVisible(true);
          } else {
              m_appIndicator.setVisible(false);
          }
      }
docs: Sets the app title.<p>
  
  @param appTitle the app title