Jruby is already kind of an easy sell in big companies. It’s the quickness of rails with the familiarity of java.


I’m not trying to to sell JRuby to enterprises [well clearly, or else he wouldn’t be giving this talk at rubyconf].

JRuby can work well, even for startups - it’s just about choosing the best tool for the job.

Why might one choose JRuby?

  • performance
  • library support (in fact, we wanted Lucene for search!)
  • extending the language without using C

Getting started:

  • easy install
  • don’t use textmate to code java
  • casting can be tricky (java needs arrays to have only one type of object in them, ruby not so much)