rails/rails — pull request #12107 by kares (2013-09-02 11:04:54+00:00)
Title: allow to test AR master against AR-JDBC master (with `ENV['AR-JDBC']`)

Allows for those few running tests under JRuby to run them against latest AR-JDBC (master).
While at the same time does not force MRI people to download a git repository with the bundle.
Some related discussion happened at PR #12095