Yes, I have now fully tested the PowerEYERunner (embedded Jetty version) on my Pi2 running Fedora 21.
- A JDK is available (and well documented) on the PI
- Jetty WebAPP server also runs. (see http://raspberrypi.stackexchange.com/questions/3710/running-jetty-webserver)
so based on that it should work fine.PowerEYERunner all-in-one package has Jetty embedded so if you get a JDK installed the "Quick-start" instructions should work without any problems.