I'm currently doing something like this:

<ui:fragment rendered="#{empty beanHelper.faxNumber}">

... to keep some messages conditionally shown. Yes, there is a #JSF tag c:if but that is #JSTL and that has nothing to do in JSF pages (other life-cycle) and they may not work under all conditons. Better is to take a proper JSF tag. But which one? I want one that only renders the tag's body if the EL expression in rendered attribute evaluates to true. #help !java