            discussion.</p>

            <p>Obtain the value of the <code>validationGroups</code>
            attribute using the same steps described in the javadoc
            for <code>javax.faces.validator.BeanValidator.validate()</code>.
            If this value is not present or not valid,
            throw <code>FacesException</code>.</p>

            <p>Call the <code>validate</code> method on
            <em>beanValidator</em>, passing the populated copied bean
            and the validation group