// Now set the context loader to one that should find the resource.
    URL baseUrl = tempFile.getParentFile().toURI().toURL();
    URLClassLoader loader = new URLClassLoader(new URL[] {baseUrl});
    ClassLoader oldContextLoader = Thread.currentThread().getContextClassLoader();
    try {
      Thread.currentThread().setContextClassLoader(loader);

    // Now set the context loader to one that should find the resource.
    URL baseUrl = tempFile.getParentFile().toURI().toURL();
    URLClassLoader loader = new URLClassLoader(new URL[] {baseUrl});
    ClassLoader oldContextLoader = Thread.currentThread().getContextClassLoader();
    try {
      Thread.currentThread().setContextClassLoader(loader);

     * Normalizes the canonical URL relative to the base URL.
     *
     * @param baseUrl the base URL
     * @param canonicalUrl the canonical URL to normalize
     * @return the normalized canonical URL
     */
    protected String normalizeCanonicalUrl(final String baseUrl, final String canonicalUrl) {
        try {
            final URL u = new URL(baseUrl);