Inheritance is a nice feature of object oriented programming languages. I tell you, why it is not a life preserver.
JSON is a nice alternative to XML. I wrote a plugin to display Minecraft data in realtime.
I use Ubuntu for a couple of years. Since I've upgraded to non-LTS versions, I experienced some issues.
Development has started again. Featuring a new core and introducing a brand new API for java developers.
Slick2D is a good graphics library but LibGDX is much better. That's the reason why I'd to rewrite something.
Static content is not the only way. Infinite worlds like in Minecraft can be a big experience.