adixitconfluent commented on PR #19786:
URL: https://github.com/apache/kafka/pull/19786#issuecomment-2907739810

   
   > @adixitconfluent Simply adding that kinds of line is not sufficient. Since 
tp3 is not in sharePartitionManager.partitionCache, but returned in 
cachedTopicIdPartitionsInShareSession. Currently, In Following codes of 
SharePartitionManager.java, exceptions occurs.
   > 
   > ```
   >         List<TopicIdPartition> topicIdPartitions = 
cachedTopicIdPartitionsInShareSession(
   >         groupId, memberIdUuid); // tp3 is included.
   > 
   >         ...
   > 
   >        topicIdPartitions.forEach(topicIdPartition -> {
   >         SharePartitionKey sharePartitionKey = sharePartitionKey(groupId, 
topicIdPartition);
   > 
   >         SharePartition sharePartition = 
partitionCache.get(sharePartitionKey); // In partitionCache, no tp3
   >         if (sharePartition == null) {
   >             // this exception is called. 
   >             log.error("No share partition found for groupId {} 
topicPartition {} while releasing acquired topic partitions", groupId, 
topicIdPartition);'
   > ```
   > 
   > There are two options we can choose.
   > 
   > 1. add tp3 in sharePartitionManager.partitionCache and make mock behaviors 
for it.
   > 2. do nothing and see if exception is detected and handled well.
   > 
   > I guess 2 is the better choice, since I see this is intentional like 
testReleaseSessionSuccess.
   
   @ji-seung-ryu , the point of this test is to test that delayed share fetch 
requests are completed for the given watch keys when release session API is 
called for any group member. So, considering that, I think you should add tp3 
to partition cache map and then mock `releaseAcquiredRecords` for tp3 as I 
mentioned 
[here](https://github.com/apache/kafka/pull/19786#issuecomment-2906971134). 
Basically, option 1 of your comment.


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