[jsr-314-open] [AjaxBehaviorEventAttribute] why must it be a literal?

Hello team, Mojarra impl issue 1143 asserts there is a use case for which allowing the value of the "event" attribute of <f:ajax> (and thus for all behaviors) to be a ValueExpression, at least in the case of composite components. I suspect there's a good reason why we chose to force the value of the event attribute to be literal, likely security. However, I want to know why so I can close this bug in an informed manner, or challenge our decision and possibly broaden the allowable value type for the attribute. Can someone please enlighten me? Sincerely, Ed -- | ed.burns(a)sun.com | office: 408 884 9519 OR x31640 | homepage: | http://ridingthecrest.com/