hot deployment

• Jetty is fully hot deployable, but does not have any native hot deployers

What this means is that Jetty contexts, servlets and filters may be added, stopped, started and reloaded dynamically, but that Jetty does not have any services that trigger these events.
http://67-23-9-112.static.slicehost.net/faq?s=200-General&t=HotDeploy

1. How to work with Java hot-deploy

You don't really have to restart the server after you change java code,launch RJR with Debug Mode (debug-as -> Run Jetty) and you are now able to enjoy the default hot-deploy feature from JDK

RJR refers to rujettyrun
https://code.google.com/p/run-jetty-run/wiki/UserGuide