return null;
        }

        @Override
        public Node appendChild(Node newChild) {
            return null;
        }

        @Override
        public boolean hasChildNodes() {
            return false;
        }

        @Override
        public Node cloneNode(boolean deep) {
            return null;
        }

        @Override
        public void normalize() {

     *
     * @param node the node to parse
     * @param buf the StringBuilder to append content to
     */
    protected void parseTextContent(final Node node, final StringBuilder buf) {
        if (node.hasChildNodes()) {
            final NodeList nodeList = node.getChildNodes();
            for (int i = 0; i < nodeList.getLength(); i++) {
                final Node childNode = nodeList.item(i);