VertX

Getting started with vertx (vert.io) - an alternative to node.js

Lately there has been a lot of synergy and publicity around node.js (especially if you want to utilize the robust features of a JavaScript language on the server-side). If you are not familiar with this, I would suggest you look at the following link: Node.js - Event-driven I/O server-side JavaScript environment based on V8. If you are a Java developer and as you try out the examples, you will notice how this will be a great addition into your infrastructure.