code: public List<ExtensibleType<TldExtensionType<T>>> getAllExtensionElement()
     {
        List<ExtensibleType<TldExtensionType<T>>> list = new ArrayList<ExtensibleType<TldExtensionType<T>>>();
        List<Node> nodeList = childNode.get("extension-element");
        for(Node node: nodeList)
        {
           ExtensibleType<TldExtensionType<T>>  type = new ExtensibleTypeImpl<TldExtensionType<T>>(this, "extension-element", childNode, node);
           list.add(type);
        }
        return list;
     }
docs: Returns all <code>extension-element</code> elements
  @return list of <code>extension-element</code>