http://code.google.com/p/lexsrandomcode/source/browse/#svn/trunk/org/jblsThe current incarnation of JBLS using that code is prety much dead, I'm toying with the idea of re-writing it in C, or re-writing it all from scratch in Java. Either way seince there has been no significant changes in bnet, I don't really care to update it.
If you have a legitimate reason for needing the source, and you actually make something of use. I would have no problem with working with you to make a newer version of JBLS.