JRuby and RVM
It occurred to me after posting last night that JRuby can be
installed via RVM as well:
As you would expect, RVM makes JRuby look like your normal Ruby:
Wait – 1.8.7? What is this,
As it turns out, JRuby doesn’t officially implement Ruby 1.9 in version 1.5.6.
The key word is “officially”, as it’s possible to enable 1.9 support with an environment
Just as MacRuby is Ruby tied to Cocoa, so JRuby is Ruby tied to Java: