Patrik Fredriksson takes us on a tour from Java to Clojure, by using a step by step conversion from one language to the other. If you're a Java programmer who wants to know a little bit about Clojure, make sure you come along. Earlier this year my colleague Peter Backlund showed us how to convert a piece of Java code to Groovy (in Swedish). In this article we will convert that same Java code, but