code: public CmsUser readUser(String username, String password) throws CmsException {
  
          return m_securityManager.readUser(m_context, username, password);
      }
docs: Returns a user, if the password is correct.<p>
  
  If the user/pwd pair is not valid a <code>{@link CmsException}</code> is thrown.<p>
  
  @param username the name of the user to be returned
  @param password the password of the user to be returned
  
  @return the validated user
  
  @throws CmsException if operation was not successful