package org.eclipse.jetty.embedded;

import org.eclipse.jetty.server.Server;

/**
 * The simplest possible Jetty server.
 */
public class SimplestServer
{
    public static Server createServer(int port)
    {
        Server server = new Server(port);
        // This has a connector listening on port specified
        // and no handlers, meaning all requests will result
        // in a 404 response
        return server;
    }

    public static void main(String[] args) throws Exception
    {
        int port = ExampleUtil.getPort(args, "jetty.http.port", 8080);
        Server server = createServer(port);
        server.start();
        server.join();
    }
}

Jetty takes second place, but it does seem surprisingly low. It could be that some developers that are using Spring Boot and other microservice frameworks may not realize they are using Jetty under the hood.