Practical JRuby on Rails Web 2.0 Projects: Bringing Ruby on Rails to Java
Ola Bini
It is a really good book. Just a bit old. If only the author would update it.
Still recommend it if you are looking to get a head state on jruby. You will run into a few surprises once you download and install the latest rails but nothing you cannot overcome am sure.
Ссылка удалена правообладателем
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The book removed at the request of the copyright holder.