public static String getIpAddressAndPort() {
        return new StringBuilder().append(ipAddress).append(IP_PORT_SPLIT_CHAR).append(port).toString();
    }
@Test
    public void testGetIpAddressAndPort() {
        XID.setPort(8080);
        XID.setIpAddress("127.0.0.1");
        Assertions.assertEquals("127.0.0.1:8080",XID.getIpAddressAndPort());
    }