public static String getConvertedAsString(FacesContext context, UIComponent component, Object value) {
        return getConvertedAsString(context, component, null, value);
    }
Finds appropriate converter for a given value holder

@param context   FacesContext instance
@param component ValueHolder instance to look up converter for
@return          Converter
primefaces/src/main/java/org/primefaces/util/ComponentUtils.java