当对topic进行消息查询后，如果删除该topic，日志会出现大量MQClientException错误

场景：当在mqcloud上对某个topic进行消息查询后，此时若删除该topic，会导致在MQClientInstance的定时任务updateTopicRouteInfoFromNameServer出现大量WARNING日志；
原因个人分析，由于使用mqAdmin对象池对topic进行查询时，会将topic信息保存到producerTable中，当删除该topic后，对象池中的producerTable不会同步删除该topic，导致后续定时任务更新topic信息一致报错，不知道上述分析是否正确，有什么解决方式没有？

2021-05-20 18:40:08.065 {MQClientFactoryScheduledThread} WARN RocketmqClient-115 - get Topic [*****_topic] RouteInfoFromNameServer is not exist value
2021-05-20 18:40:08.065 {MQClientFactoryScheduledThread} WARN RocketmqClient-130 - updateTopicRouteInfoFromNameServer Exception
org.apache.rocketmq.client.exception.MQClientException: CODE: 17 DESC: No topic route info in name server for the topic: *****_topic
See http://rocketmq.apache.org/docs/faq/ for further details.
at org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer(MQClientAPIImpl.java:1385)
at org.apache.rocketmq.client.impl.MQClientAPIImpl.getTopicRouteInfoFromNameServer(MQClientAPIImpl.java:1355)
at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:622)
at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:509)
at org.apache.rocketmq.client.impl.factory.MQClientInstance.updateTopicRouteInfoFromNameServer(MQClientInstance.java:358)
at org.apache.rocketmq.client.impl.factory.MQClientInstance$3.run(MQClientInstance.java:275)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

Start with MQClientInstance.updateTopicRouteInfoFromNameServer and the related calls in MQClientAPIImpl.java shown in the stack trace. Inspect how mqAdmin queries store topic information in the producerTable and what happens after the topic is deleted. Done means determining the cause and preventing the repeated MQClientException warnings, with a regression check for this sequence.