chia7712 commented on code in PR #18726:
URL: https://github.com/apache/kafka/pull/18726#discussion_r1933658363


##########
clients/src/main/resources/common/message/FetchResponse.json:
##########
@@ -106,7 +106,7 @@
         ]},
         { "name": "PreferredReadReplica", "type": "int32", "versions": "11+", 
"default": "-1", "ignorable": false, "entityType": "brokerId",
           "about": "The preferred read replica for the consumer to use on its 
next fetch request."},
-        { "name": "Records", "type": "records", "versions": "0+", 
"nullableVersions": "0+", "about": "The record data."}

Review Comment:
   > Again, let's discuss a concrete use case - you're worried that the Java 
consumer might break because there is an unknown Kafka broker that implements 
this differently?
   
   I have no evidence that there is a broker implementation that returns null 
records. If librdkafka and related clients constitute 30-50% of clients, it is 
acceptable to fix the specification.



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