code: public static String getSSOCookieName() throws Exception {
          WebAppSecurityConfig config = WebSecurityHelperImpl.getWebAppSecurityConfig();
          if (config != null) {
              return config.getSSOCookieName();
          }
          return null;
      }
docs: Extracts the SSO cookie name for use on downstream web invocations.
  Return null when the service is not started or activated.
  
  @return a String.