[jruby-user] JRuby pitch for Java developers?

Hi everyone,

couple of months back I listened to the Ruby Rogues JRuby episode with
Charlie (http://devchat.tv/ruby-rogues/124-rr-jruby-with-charlie-nutter)
and he said that the "sales pitch" of JRuby to Java developers is very
different than from the one of JRuby for Ruby developers. And ever since
I wondered, what is the pitch for Java developers?

Java developers here, why do you use JRuby? Which problems does it solve
for you? How can we get more Java people to try out JRuby?

Thinking of it I can come up with the following points:

* write code faster/prototyping/quicker changes
* not type annotations everywhere
* easier access to powerful meta programming features
* superb Java integration, e.g. use libraries/other code easily
* integration goes so far that you can package ruby applications as .war
* for a tester: nicer test framework

That's about what I can think of - and still makes it hard to explain
why people shouldn't just go with languages "born" on the JVM
(Clojure/Groovy/Scala).

Ideas/Input/Pointers?

Cheers,
Tobi

-- 
www.pragtob.info

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