 <p>You can use the Java library from here: <a href="http://www.johannes-raida.de/jnetcad" rel="nofollow">http://www.johannes-raida.de/jnetcad</a>. As far as I can see, it should support JT version 8 files. I used the DXF import library and was quite happy. The API is the same, so you have access to all triangles with their coordinates, normals, color and layer.</p>