Hi, I invested a little more time in trying to track this down and may have fixed the problem. Were you running on jruby 1.7.13? If so it seems to have a bug/feature that we needed to work around (See [1]). Can you try again?
[1] https://github.com/apache/buildr/commit/2a4892a5cf098d864f213a7ee4257f43728012f4 -- Cheers, Peter Donald
