docs: protected OAuthRegisteredService getOAuthRegisteredServiceBy(final HttpServletRequest request) {
          val redirectUri = getRegisteredServiceIdentifierFromRequest(request);
          val registeredService = OAuth20Utils.getRegisteredOAuthServiceByRedirectUri(getOAuthConfigurationContext().getServicesManager(), redirectUri);
          LOGGER.debug("Located registered service [{}]", registeredService);
          return registeredService;
      }