it is mentioned that the project relies on netlib, I assume this takes care of the JNI part

Show us how to design a mobile platform, Microsoft.

That's probably why there is the comment at the end: "No fly was harmed. The banners were attached with wax and detached themselves after a couple of hours.". It's up to you, whether you want to believe this... :-)

They tend to be pretty trollish about it. They'll probably complain about the flies being "tortured" by having to fly with a weight attached to them.