why would you want to do that? who wants java? also, 0.8 is two years old by now. i've always been thinking it to be wrong for jython to port old versions of python to java (their stable release is now at 2.5, a version i stopped using 2008 when cPython 2.6 came out). pypy show a similar lag (at least both projects have more recent versions as betas). looks like with all these ports users are destined to live with old versions.