Jetty is a 100% Java HTTP Server and Servlet Container. This means that you do not need to configure and run a separate web server (like Apache) in order to use java, servlets and JSPs to generate dynamic content. Jetty is a fully featured web server for static and dynamic content. Unlike separate server/container solutions, this means that your web server and web application run in the same process, without interconnection overheads and complications. Furthermore, as a pure java component, Jetty can be simply included in your application for demonstration, distribution or deployment. Jetty is available on all Java supported platforms.
Open Source Jetty is devloped under the guidance of Mort Bay Consulting and released under the Apache 2.0 License . Full source code is included in all releases.The License puts few restrictions on usage of Jetty, which is free for commercial use and distribution. The developers of Jetty ask users to inform themselves of the issues, political, legal or otherwise that motivate and threaten the development of Open Source and Free Software. The Jetty user and development community is active and welcomes new contributors.