2 of 3 people found the following review helpful
A must have!,
This review is from: Using JRuby: Bringing Ruby to Java (Facets of Ruby) (Paperback)
I'm really impressed by this book, not only does it cover every in and out of the JRuby project. It also manages to explain the rationale for it's being, in a way that is compelling both for people coming from the Java world and the Ruby world. If you're thinking about using JRuby in any form, be it for integration with java, production Ruby apps, cross-platform GUIs or whatever, this is _the_ book to get.