Jetty - Servlet Engine and Http Server
Jetty provides an Web server and javax.servlet container, plus support for SPDY, Web Sockets, OSGi, JMX, JNDI, JASPI, AJP and many other integrations. These components are open source and available for commercial use and distribution. Jetty is used in a wide variety of projects and products. Jetty can be embedded in devices, tools, frameworks, application servers, and clusters.