Please see the description for the specification of managed bean annotations in JSF 2.0.

These javadoc files constitute the “Faces Managed Bean Annotation Specification for Containers Conforming to Servlet 2.5 and Beyond”

At the time of this writing, a forthcoming JCP effort is being planned to extract the specification for managed beans from JSF and place it into its own specification. To account for this effort and to avoid introducing classes into JSF 2.0 that would have to be deprecated when this effort is complete, implementations of JSF 2.0 are not required to implement the “Faces Managed Bean Annotation Specification for Containers Conforming to Servlet 2.5”. However, JSF implementations are strongly encouraged to implement this specification, as it provides significant improvements in ease of use.

The annotations must be processed as specified in section JSF.11.5.1.