1. JRuby is Awesomea.k.a Pump It Up: Maximizing the Value of an Existing Investment in Java with Ruby
2. Me• Charles Oliver Nutter (“headius”)• JRuby Guy• JVM Languages Guy• Ex-Sun Guy• Engine Yard Guy
3. You• Java developers? • Let’s call ourselves JVM developers now.• Other languages?• Other platforms?
4. Why JVM?• Inertia• Wealth of libraries• Widely accepted• Momentum is coming back• Awesome VM, best platform
5. Why Not JVM?• Alternative languages?• Cumbersome standards?• New shiny? Cool factor?• Tooling woes?• Native library/OS features?
6. What If?
7. JRuby• Ruby language on the JVM• Solid, reliable implementation• Production users: ﬁnance, gov’t, infrastruct• Integrates well with JVM langs, libs• Deploys on Java servers• Large, active community
8. Language• Ruby is a beautiful, fun language • A standard by which others are judged• Wealth of books, resources, conferences • Healthy, growing community• JRuby brings Ruby to Java and Java to Ruby • Part of the family!