JRuby
The match can be called one made in heaven, that is to stress the point of a scripting language that has added benefits and power with the injection of code from languages such as ruby. JRuby as it is called has the ruby engine embedded within Java apps allowing both to do what they do best. Having one of the most powerful scripting languages to use the extensive open-source native libraries or the ones included when combined with other languages makes for one strong and powerful mix.
Java, combined with any of the open-source languages makes good of the combined powers and abilities. Java programs take a life of their own when combined with the many dynamic languages, being preferred by many of the world’s open-source developers even if they do not get much in terms of exposure or headlines, they are surely there and will be part of the internet for many years to come.