code: public JettyServiceBuilder sessionIdManagerFactory(
              Function<? super Server, ? extends SessionIdManager> sessionIdManagerFactory) {
          requireNonNull(sessionIdManagerFactory, "sessionIdManagerFactory");
          this.sessionIdManagerFactory = sessionIdManagerFactory;
          return this;
      }
docs: Sets the factory that creates a new instance of {@link SessionIdManager} for the Jetty {@link Server}.
  
  @see Server#setSessionIdManager(SessionIdManager)