brokerService.start();
MQTT mqtt = createMQTTConnection();
mqtt.setClientId("MQTT-Client");
mqtt.setCleanSession(false);
final BlockingConnection connection = mqtt.blockingConnection();
connection.connect();
Topic[] topics = { new Topic("Topic/A", QoS.EXACTLY_ONCE), new Topic("Topic/B", QoS.EXACTLY_ONCE) };
Topic[] wildcardTopic = { new Topic("Topic/#", QoS.AT_LEAST_ONCE) };
connection.subscribe(wildcardTopic);