code: public HttpServerActionBuilder server(String httpServer) {
  		Assert.notNull(applicationContext, "Citrus application context is not initialized!");
  		HttpServerActionBuilder serverAction = new HttpServerActionBuilder(action, applicationContext.getBean(httpServer, Endpoint.class))
  				.withApplicationContext(applicationContext);
  		return serverAction;
  	}
docs: Initiate http server action.