cometd-jetty

The Jetty Webserver provides the java cometd servlet. There are currently two implementations:

Jetty 6.1x

Provides the semi-portable ContinuationCometdServlet, which implements the cometd-java API using Jetty's Continuation mechanism to achieve scalability. The servlet will run on any servlet container, but the scalability features will only work on Jetty.

Jetty 7

Provides the portable SuspendingCometdServlet, written against the proposed servlet-3.0 suspendable requests API. Currently this api is only available via the jetty-7 prerelease. But eventually it will be available in all servlet-3.0 and this servlet will move to be part of cometd-java.