Javadoc
Returns a mutable map of attributes associated with this faces context when
javax.faces.context.FacesContext#release() is called the map must be cleared!
Note this map is not associated with the request map the request map still is accessible via the
javax.faces.context.ExternalContext#getRequestMap() method!
Also the scope is different to the request map, this map has the scope of the context, and is cleared once the
release method on the context is called!
Also the map does not cause any events according to the spec!