public static boolean isPopRetryTopicV2(String retryTopic) {
        return retryTopic.startsWith(MixAll.RETRY_GROUP_TOPIC_PREFIX) && retryTopic.contains(String.valueOf(POP_RETRY_SEPARATOR_V2));
    }
@Test
    public void testIsPopRetryTopicV2() {
        String popRetryTopic = KeyBuilder.buildPopRetryTopicV2(topic, group);
        assertThat(KeyBuilder.isPopRetryTopicV2(popRetryTopic)).isEqualTo(true);
        String popRetryTopicV1 = KeyBuilder.buildPopRetryTopicV1(topic, group);
        assertThat(KeyBuilder.isPopRetryTopicV2(popRetryTopicV1)).isEqualTo(false);
    }