### Question:
AWSIotMqttQueueMessage { PublishMessageUserData getUserData() { return userData; } AWSIotMqttQueueMessage(String topic, byte[] message, AWSIotMqttQos qos, PublishMessageUserData userData);   }### Answer:
@Test public void testGetMessageUserData() throws Exception { assertEquals(mdcb, qMessage.getUserData().getUserCallback()); assertEquals(testObject, qMessage.getUserData().getUserData()); }