docs: public boolean validateUser(String userName, String password, CmsRole requiredRole) {
  
          boolean result = false;
          try {
              CmsUser user = m_cms.readUser(userName, password);
              result = OpenCms.getRoleManager().hasRole(m_cms, user.getName(), requiredRole);
          } catch (CmsException e) {
              // nothing to do
          }
          return result;
      }