Over a year ago Heroku launched the Cedar stack and the ability to run Java on our platform. Java is known as a powerful language - capable of performing at large scale. Much of this potential comes from the JVM that Java runs on. The JVM is the stable, optimized, cross-platform virtual machine that also powers other languages including Scala and Clojure. Starting today you can leverage the power of the JVM in your Ruby applications without learning a new language, by using JRuby on Heroku.
After a beta process with several large production applications, we are pleased to move JRuby support into general availability immediately. One of these companies Travis CI which provides free CI...Read more →