Jersey-netty is a project mainly written in Java, based on the MIT license.
Netty bindings for Jersey
Simple bindings for JBoss Netty enabling Jersey to be embedded as a handler in Netty's pipeline. Regard this as alpha quality. Think twice before doing anything serious with it.
Use Maven to compile
mvn installSee http://gist.github.com/261277 for an example of how to use it.
Will tr getting this onto a Maven repo if there's interest. Hopefully either Jersey or Netty can include it as part of the official repository.