* @param encoding the character encoding to use
     * @deprecated Use {@link #addChildUrlFromTagAttribute(List, URI, String, String)} instead.
     */
    @Deprecated
    protected void addChildUrlFromTagAttribute(final List<String> urlList, final URL url, final String attrValue, final String encoding) {
        try {
            addChildUrlFromTagAttribute(urlList, url.toURI(), attrValue, encoding);
        } catch (final URISyntaxException e) {

     * @param attrValue the attribute value containing the URL
     * @param encoding the character encoding
     */
    @Override
    protected void addChildUrlFromTagAttribute(final List<String> urlList, final URI uri, final String attrValue, final String encoding) {
        final String urlValue = attrValue.trim();
        String u = null;
        try {