It's great that Restlet 2.2 allows us to use Jetty 8, but Jetty 9 is already out and is very promising. Unfortunately, it requires JVM 7, and the Restlet project is not ready for the move.
But I believe this is important, so I forked the Jetty 8 connector and created a Jetty 9 connector for Restlet:
https://github.com/tliron/restlet-jetty9Jetty 9 has a very different API, so this was not trivial.
But it all seems to work well: Jetty 9 is already fueling the Three Crickets main web site.
What this means is that at least JVM 7 will be recommended for Prudence, although it will still also support JVM 6. In detail:
JVM 8The best experience: Prudence will be using Nashorn and Jetty 9.
JVM 7You will be using Jetty 9 with Rhino.
JVM 6You will need to downgrade to Jetty 8 explicitly:
sincerity add restlet.jetty8 : install