I just released the beta 2 of my Java 3D physics library.
It's a pure Java port of the C/C++ ODE physics library (www.ode.org).
If you are interested, please have a look here:
There are currently two issues with the demos:
- The cause a JVM segmentation fault in X11 when exiting. I suppose that is related to my ATI drivers on Linux 64 bit
- The graphics are quite slow, eating up >50% of the CPU even in the small windows. For real performance tests you would have to disable the Graphics (see Bug description or the www.ode4j.org page).