final Node attrNode = node.getAttributes().getNamedItem(attr);
                if (attrNode != null) {
                    final String attrValue = attrNode.getNodeValue();
                    if (isValidPath(attrValue)) {
                        addChildUrlFromTagAttribute(urlList, url, attrValue, encoding);
                    }
                }
            }
        } catch (final XPathException e) {