*
     * @param jarUrl the URL of the JAR file (must not be {@literal null})
     * @return a <code>JarFile</code> to read the JAR file specified by the URL
     */
    public static JarFile toJarFile(final URL jarUrl) {
        assertArgumentNotNull("jarUrl", jarUrl);

        final URLConnection con = URLUtil.openConnection(jarUrl);
        if (con instanceof JarURLConnection) {