Can't you use (something like) Jython, a bridge, and Python module API proxies around (your) Java APIs? Then you can prototype in CPython and easily (or automatically) port it to Java (or you don't, because you don't have to).

Anyone (on disability) that wants to learn to develop software may PM me and I could give a PM-based, online "course". It could also be a separate thread, but that's probably too disruptive. It's work you could do any time you like and for as much time as you like and it can be used to supplement your income (possibly: I don't know whether you're allowed to; it'll).

I'm hope this counts as BP support. It's a free "service". I hope that's alright. I don't want people questioning my motives again. I just want to help people by sharing and using knowledge (incidentally, this time, just mine). Doing something with the available resources (time, intelligence) for the benefit of all/some. Working towards something (not that people who don't want to in this way, don't in other ways).

Maybe bluebicycle or others are willing to help.

(I can see myself being chastised for this. Just like with the plan to use, more structurally/scientifically analysing knowledge and experiences of BP. Please let me know if this is inappropriate. Even then, I might not care. Report me).