I was very happy to see that the new version of JPCT can import Wavefront .OBJ files. Sadly it doesn't work with files exported from Poser 6 and / or Milkshape 1.7.9 and 1.8.1a. The first file results in an empty object, the other file results in an object that reminds a little bit of a hedgehog - it's very spiky.

You can download the files from this url - it's the same object, one from poser and the other one from milkshape (it's the poser .obj file loaded in milkshape and saved again as .obj with milkshape):

http://b1.world-of-dungeons.de/hose_milk.zip

This is the code I use to load the files:

Object3D[] o = Loader.loadOBJ(filename, filename.replaceAll("\\.obj", "\\.mtl"), 100f);
for (int j = 0; j < o.length; j++) {
  world.addObject(o[j]);     
}
world.buildAllObjects();

Thanks for any help!