JRuby 9K targets Ruby 2.2, and latest version of Rack supports Ruby 2.2 (!351) · Merge requests · Ruby OAuth / oauth2

No functional changes, just improving the build for JRuby, allowing it to install latest version of rack.

Will merge as soon as it passes the build.

JRuby 9K targets Ruby 2.2, and latest version of Rack supports Ruby 2.2