$JETTY_HOME/webapps directory at startup for web applications to deploy: It deploys the file foo.war as a webapp at context /foo. java -jar start.jar http://localhost:8080/ Websocket Jetty provides a Websocket implementation. An example based around the com.acme.WebSocketChatServlet is included in the test-jetty-webapp with source code in the test-jetty-webapp.jar . The example is