protected String targetNodePath = "//HTML/BODY | //@alt | //@title";

    /** Cache for XPathAPI instances to improve performance. */
    protected LoadingCache<String, XPathAPI> xpathAPICache;

    /** Cache duration in minutes for XPathAPI instances. */
    protected long cacheDuration = 10; // min

    /**
     * Creates a new HtmlXpathExtractor instance.
     */

    }

    /**
     * Gets a thread-local XPathAPI instance for thread-safe XPath evaluation.
     *
     * @return the XPathAPI instance for the current thread
     */
    protected XPathAPI getXPathAPI() {
        XPathAPI cachedXPathAPI = xpathAPI.get();
        if (cachedXPathAPI == null) {
            cachedXPathAPI = new XPathAPI();
            xpathAPI.set(cachedXPathAPI);
        }

     * Gets the XPath API instance for this thread.
     *
     * @return the XPath API instance
     */
    protected XPathAPI getXPathAPI() {
        XPathAPI cachedXPathAPI = xpathAPI.get();
        if (cachedXPathAPI == null) {
            cachedXPathAPI = new XPathAPI();
            xpathAPI.set(cachedXPathAPI);
        }
        return cachedXPathAPI;
    }

    /**