code: public FacesConfigValidatorType<FacesConfigType<T>> getOrCreateValidator()
     {
        List<Node> nodeList = childNode.get("validator");
        if (nodeList != null &&  nodeList.size() > 0)
        {
           return new FacesConfigValidatorTypeImpl<FacesConfigType<T>>(this, "validator", childNode, nodeList.get(0));
        }
        return createValidator();
     }
docs: If not already created, a new <code>validator</code> element will be created and returned.
  Otherwise, the first existing <code>validator</code> element will be returned.
  @return the instance defined for the element <code>validator</code>