*
     * @param address the IP address string to check
     * @return true if the address is a valid IPv6 address, false otherwise
     */
    public static boolean isIPv6Address(final String address) {
        if (address == null) {
            return false;
        }
        try {
            final InetAddress inetAddress = InetAddress.getByName(address);

        // IPv6 addresses
        assertTrue(IpAddressUtil.isIPv6Address("::1"));
        assertTrue(IpAddressUtil.isIPv6Address("2001:db8::1"));
        assertTrue(IpAddressUtil.isIPv6Address("fe80::1"));
        assertTrue(IpAddressUtil.isIPv6Address("2001:0db8:0000:0000:0000:ff00:0042:8329"));

        // IPv4 addresses
        assertFalse(IpAddressUtil.isIPv6Address("127.0.0.1"));