soceanainn opened a new pull request #11482: URL: https://github.com/apache/kafka/pull/11482
Originally, Callback would return a null metadata value when an error occurred. This was partially changed by [KAFKA-3303](https://issues.apache.org/jira/browse/KAFKA-3303), where in some cases Callback would return an 'empty' metadata. In this empty metadata TopicPartition is set correctly but all other fields are set as `-1`. The docs were later updated by [KAFKA-7412](https://issues.apache.org/jira/browse/KAFKA-7412), but it incorrectly states that Callback will always return this 'empty' metadata when an error occurs. However in the case of any exceptions that are a subclass of ApiException, Callback will still return a null value (see [here](https://github.com/apache/kafka/blob/3.1/clients/src/main/java/org/apache/kafka/clients/producer/KafkaProducer.java#L1002)). This change fixes the behaviour when an ApiException is thrown, to align that behaviour with other exceptions and with the currently documented behaviour. ### Committer Checklist (excluded from commit message) - [ ] Verify design and implementation - [ ] Verify test coverage and CI build status - [ ] Verify documentation (including upgrade notes) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
