Recently Arjen and I have set up Ubuntu on our machines. We noticed that dune2themaker4j did not run there. So we fixed that
Now we can run the game on Windows and Linux. I bet it even works on Mac OS X, but I don’t have a machine to confirm this (yet).

I’m on MacOSX, and would love to test, but I’m not sure where to download the files..?
You can get it from GIT. You need to setup an environment. But it is pretty straightforward if you know the tools.
See: https://github.com/stefanhendriks/dune2themaker4j
Be sure you read the readme.txt
Hi,
if you are looking for something like SDL in C++ try SFML
it works on MacOSX !