@Bean
    public JettyService jettyService(ServletWebServerApplicationContext applicationContext) {
        final JettyWebServer jettyWebServer = jettyServer(applicationContext);
        return JettyService.of(jettyWebServer.getServer(), null);
    }
Returns a new {@link JettyService} that redirects the incoming requests to the Jetty instance
provided by Spring Boot.
examples/spring-boot-jetty/src/main/java/example/springframework/boot/jetty/HelloConfiguration.java