JRuby 1.7.6 comes with Bouncy Castle bundled in a way that seems to confuse Bundler. When you package you get an error that says that Bouncy Castle can't be found, and the path where it's assumed to be does indeed not exist.
I got another similar error in JRuby 1.7.5, but other's have been able to run jobs with that version so not sure what's going on there.
JRuby 1.7.6 comes with Bouncy Castle bundled in a way that seems to confuse Bundler. When you package you get an error that says that Bouncy Castle can't be found, and the path where it's assumed to be does indeed not exist.
I got another similar error in JRuby 1.7.5, but other's have been able to run jobs with that version so not sure what's going on there.