Java for Mindstorms EV3 - The Real Deal

Oracle has an embedded VM for Mindstorms EV3, the latest Mindstorms Robotics Kit. Find it here:

http://www.oracle.com/technetwork/java/embedded/downloads/javase/javaseemeddedev3-1982511.html

Check out the Lejos project to get the Java API for Mindstorms EV3

http://www.lejos.org/ev3.php

EV3 can run off a bootable SD card, so it makes swapping out its OS pretty simple. Everything you need to know is here:

http://sourceforge.net/p/lejos/wiki/Home/