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Shale is a web application framework maintained by the Apache Software Foundation. It is fundamentally based on JavaServer Faces. As of May 2009 Apache Shale has been retired and moved to the Apache Attic.
- McLaughlin, Brett D. (February 28, 2006), "All Hail Shale: Shale isn't Struts", DeveloperWorks, retrieved August 3, 2012
- Krill, Paul (June 11, 2009), "Apache Shale Web framework project retired", InfoWorld, retrieved August 3, 2012