Actually, really didn't recommend this, but a friend of my friend ask me about it, so i make him this repo.
So this will be a little refrence for me to do such a thing, maybe soon.
Well, sometimes i found so many libs on dll that can be used, instead of translating those shits into a even more shitty things. So here's a case when you'll consider this technique as a choice.
Compile the C on the respected machine, then include it from java, then enjoy the fun.
g++ no -c please, and please add the -shared one. Here's full parameter:
$ g++ -fPIC main.cpp -shared -o mylib.so