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https://issues.apache.org/jira/browse/KAFKA-21155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chia-Ping Tsai resolved KAFKA-21155.
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Fix Version/s: 4.5.0
Resolution: Fixed
> Document that the records map passed to ConsumerRecords must not contain
> empty lists
> ------------------------------------------------------------------------------------
>
> Key: KAFKA-21155
> URL: https://issues.apache.org/jira/browse/KAFKA-21155
> Project: Kafka
> Issue Type: Improvement
> Reporter: Chia-Ping Tsai
> Assignee: Andy Huang
> Priority: Minor
> Fix For: 4.5.0
>
>
> {code:java}
> public boolean isEmpty() {
> return records.isEmpty();
> }
> {code}
> The empty list will make {{ConsumerRecords#isEmpty}} return false, and
> {{partitions()}} will include a partition with no records. I have checked
> that both classic and async consumers follow the rule.
> [https://github.com/apache/kafka/pull/23532] will fix the issue in share
> consumer.
> I was thinking of modifying {{{}isEmpty{}}}, but it may introduce an
> unexpected breaking change, and the constructor is public so interceptors can
> build {{ConsumerRecords}} too. That is to say ... let's update the docs
> instead 🙂
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