code: protected String grantServiceTicket(final String ticketGrantingTicket, final Service service, final AuthenticationResult authenticationResult) {
          val ticket = centralAuthenticationService.grantServiceTicket(ticketGrantingTicket, service, authenticationResult);
  
          LOGGER.debug("Generated service ticket [{}]", ticket.getId());
          return ticket.getId();
      }
docs: Grant service ticket service ticket.
  
  @param ticketGrantingTicket the ticket granting ticket
  @param service              the service
  @param authenticationResult the authentication result
  @return the service ticket