The eXo platform is an aggregation of several
modules to build a powerful enterprise portal that
complies with JSR 168. It is based on the most
innovative tools, API, and frameworks, such as
Java Server Faces, Pico Container, JbossMX, and
AspectJ. It includes a content management system,
a portlet container, a portal, hot deployable
services, a portlet framework, a customization
tool, a workflow service, enhanced communication
tools, and a bunch of bundled portlets.