It can be easily customized to a particular application environment.
Jetty supports out of the box technologies like AJP, SPDY, Web Sockets, OSGi, JMX, JNDI, JASPI and many others.
Jetty has also been used in well known applications like Yahoo Hadoop, Yahoo Zimbra, Google AppEngine, Google Web Toolkit, Eclipse IDE, and many other more.
The Jetty binaries for Mac, Linux and Windows can be downloaded from here.
Here are some key features of "Jetty":
· Easy to adapt and extend
· Light size
· Embeddable anywhere
· Includes an asynchronous HTTP server
· Servlet container