* @param def the default value to return if key is not found
     * @return an array of InetAddress objects or the default value
     */
    public static InetAddress[] getInetAddressArray(final Properties props, final String key, final String delim, final InetAddress[] def) {
        final String p = props.getProperty(key);
        if (p != null) {

        InetAddress[] result = Config.getInetAddressArray(testProperties, "test.hosts", ",", defaultArray);
        assertEquals(2, result.length);
        assertEquals(InetAddress.getByName("localhost"), result[0]);
        assertEquals(InetAddress.getByName("127.0.0.1"), result[1]);

        result = Config.getInetAddressArray(testProperties, "nonexistent.hosts", ",", defaultArray);