Keel:

a highly extensible backbone for integrating Java projects
Fleshed out and ready to use.

As a keel to a ship, Keel Framework stabilizes the waters of open source development.



Keel Group Limited Launches Keel 2.0!    
Keel now brings together the power of Avalon, Cocoon, Struts, Hibernate, Velocity, WebWork2, Axis, Maverick, JBoss, OpenJMS, Turbine, Lucene, BSF, Jelly, JFreeChart, Quartz and more!