MyFaces Commons ResourceHandler is a project aiming to provide a place where to find utilities for create Resource Handler instances and a Extended ResourceHandler which has some useful features like:

• GZIP compression and local cache in tmp dir.
• i18n (supporting country code and language).
• Prevent use #{resource'...'} on css files, using prefix mapping
• Prefix mapping automatic detection
• Override request path generation using EL expressions
• Redirect library names to prevent duplicate usage against other JSF libraries.

Just add this jar to your project and register on a WEB-INF/myfaces-resources-config.xml file or META-INF/myfaces-resources-config.xml the libraries that needs to be handled by the ExtendedResourceHandler. Look on the Web Context Parameter List for the available parameters.