@Override
    public TopicConfig examineTopicConfig(String addr,
        String topic) throws RemotingSendRequestException, RemotingConnectException, RemotingTimeoutException, InterruptedException, MQBrokerException {
        return defaultMQAdminExtImpl.examineTopicConfig(addr, topic);
    }
@Test
    public void testExamineTopicConfig() throws MQBrokerException, RemotingException, InterruptedException {
        TopicConfig topicConfig = defaultMQAdminExt.examineTopicConfig("127.0.0.1:10911", "topic_test_examine_topicConfig");
        assertThat(topicConfig.getTopicName().equals("topic_test_examine_topicConfig")).isTrue();
    }