chirag-wadhwa5 commented on code in PR #16792:
URL: https://github.com/apache/kafka/pull/16792#discussion_r1710836151


##########
core/src/main/scala/kafka/server/KafkaApis.scala:
##########
@@ -4367,10 +4443,49 @@ class KafkaApis(val requestChannel: RequestChannel,
     CompletableFuture.completedFuture[Unit](())
   }
 
-  private def getAcknowledgeBatchesFromShareFetchRequest(shareFetchRequest: 
ShareFetchRequest,
-                                                         topicIdNames: 
util.Map[Uuid, String],
-                                                         erroneous: 
mutable.Map[TopicIdPartition, ShareAcknowledgeResponseData.PartitionData]
-                                                        ): 
mutable.Map[TopicIdPartition, util.List[ShareAcknowledgementBatch]] = {
+  // Visible for Testing
+  def 
getAcknowledgeBatchesFromShareAcknowledgeRequest(shareAcknowledgeRequest: 
ShareAcknowledgeRequest,
+                                                       topicIdNames: 
util.Map[Uuid, String],
+                                                       erroneous: 
mutable.Map[TopicIdPartition, ShareAcknowledgeResponseData.PartitionData]
+                                                      ): 
mutable.Map[TopicIdPartition, util.List[ShareAcknowledgementBatch]] = {
+    val acknowledgeBatchesMap = mutable.Map[TopicIdPartition, 
util.List[ShareAcknowledgementBatch]]()
+    shareAcknowledgeRequest.data().topics().forEach{ topic =>
+      if (!topicIdNames.containsKey(topic.topicId)) {
+        topic.partitions.forEach{ case partition: 
ShareAcknowledgeRequestData.AcknowledgePartition =>
+          val topicIdPartition = new TopicIdPartition(
+            topic.topicId,
+            new TopicPartition(null, partition.partitionIndex))
+          erroneous +=
+            topicIdPartition -> 
ShareAcknowledgeResponse.partitionResponse(topicIdPartition, 
Errors.UNKNOWN_TOPIC_ID)
+        }
+      } else {
+        topic.partitions().forEach{ partition =>
+          if (partition.acknowledgementBatches().size() > 0) {

Review Comment:
   Thanks for the review. That is the incorrect behaviour. I have made changes 
in handleAcknowledgements method to take care of this, and removed the check 
`if (partition.acknowledgementBatches().size() > 0)` altogether from 
`getAcknowledgeBatchesFromShareAcknowledgeRequest` and 
`getAcknowledgeBatchesFromShareFetchRequest`



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