An embedded Jetty web server to run a war file.
Server server = new Server();
Connector connector = new SelectChannelConnector();
connector.setPort(8080);
server.setConnectors(new Connector[]{connector});
WebAppContext webapp = new WebAppContext();
webapp.setContextPath("/");
webapp.setWar("warfile.war");
server.setHandler(webapp);
server.start();
server.join();