Perhaps JRuby simply isn't for you. We're using JRuby with Rails, and the tradeoffs are well worth it. Performance is quite good, and the laggy startup is irr

Perhaps JRuby simply isn't for you. We're using JRuby with Rails, and the tradeoffs are well worth it. Performance is quite good, and the laggy startup is irrelevant to a long-running server process like Rails. More critically, our development time is significantly reduced by using a highly expressive language like Ruby. Code is more readable, more understandable, and a heck of a lot faster to write. Plus, we can still use all the neat Java libraries like Jetty, Lucene, and JavaMail. Add in things like java NIO, and it matches our needs nicely. While JRuby might not suit your particular application, it's doing wonderful, useful work for a lot of people. Horses for courses, as they say.