wro4j is a project that will help you to easily improve your Web application page loading time. It can help you to keep your static resources (JavaScript and CSS) well organized, merge and minify them at run-time (using a simple filter) or build-time (using a Maven plugin), and has several features you may find useful when dealing with Web resources.

Changes:
This release contains 26 fixed issues (bugfixes and small improvements). The most notable issues are: simplified model configuration, abstract group support for groovy DSL, a new RhinoTypeScriptProcessor (a cross platform processor), and an upgrade of the following: less4j, less.js, cssLint, ember.js, coffee-script.js, and many others

URL:
wro4j