### Question:
ActiveMQBase { protected Destination getTopic(String topic) throws NamingException, JMSException { return (Destination) session.createTopic(topic); } ActiveMQBase();  ActiveMQBase(String user, String password, String url);  ActiveMQBase(String user, String password); void setAmqpExceptionListener(AmqpExceptionListener amqpExceptionListener); Set<ActiveMQQueue> getQueues(); Set<ActiveMQTopic> getTopics(); void printQueueAndTopicInformation(); void close();  }### Answer:
@Test public void testGetTopic() throws Exception { System.out.println("getTopic"); String topic = ""; ActiveMQBase instance = new ActiveMQBaseImpl(); Destination result = instance.getTopic(topic); assert(result == null); }