private static String getBrokerUrl() {
        final String address = container.getHost();
        final Integer port = container.getFirstMappedPort();
        return "tcp://" + address + ':' + port;
    }
@author Younsung Hwang
@author Taejin Koo
agent-module/plugins-it/paho-mqtt-it/src/test/java/com/navercorp/pinpoint/it/plugin/paho/mqtt/PahoMqttV3ClientIT.java