mongoid/mongoid — comment on commit 3f97d19e2f4732354dc5765fdcc8e811bb0fb4ca
File:  line 0
By michaelklishin:

You can use `jruby-19mode` now, just like with Rubinius. It is JRuby 1.6.6 built to use 1.9 mode by default. `jruby` is the same as `jruby-18mode`.