ShivsundarR commented on PR #19295:
URL: https://github.com/apache/kafka/pull/19295#issuecomment-2758130014
   @AndrewJSchofield as @chia7712 mentioned if the case arises where successive 
`ShareFetchResponses` have only control records (eg. 2 abort markers received 
in read_commited mode), 
   and if the second response came in at 
`fetchBuffer.awaitNotEmpty(pollTimer);`, then when we do 
`collect(Collections.emptyMap())`, then we would get a new set of 
acknowledgements for control records, but this time, these incoming 
acknowledgements would be ignored and missed.
   Here we might have to combine the acknowledgements.


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