Java physics engine?

Question

I play with the development of games in Java, in particular with the Slick 2d engine. I have an idea for a simple game, but I need a physics engine.

I searched the Internet, looking for a well-documented, free physics engine. I never used a physics engine, so I'm looking for something relatively simple, with lots of examples and documentation.

Answer 1

Box2D is pretty much the standard 2d physics library for most games. There is a port for Java here that is pretty easy to use:

http://www.jbox2d.org/

Answer 2

What about jbox2d ? This is the direct port to the more notorious Box2D written in C ++.