Instead going down that dead end (so far i know Minecraft
is obsfucated via ProGuard or something else) , just try it
with the newest Oracle Java 8 JRE which is available for the Pi
free of cost. It is way faster than OpenJDK and faster than
Oracles Java 7 , too. If that isn't enough , use a desktop
to host your server.
• Don't like the board ? Missing features ? Change to the prosilver theme ! You can find it in your settings.
• Don't like to search the forum BEFORE posting 'cos it's useless ? Try googling : yoursearchtermshere site:raspberrypi.org