soceanainn commented on a change in pull request #11470: URL: https://github.com/apache/kafka/pull/11470#discussion_r746457370
########## File path: clients/src/main/java/org/apache/kafka/clients/producer/Callback.java ########## @@ -25,10 +25,12 @@ /** * A callback method the user can implement to provide asynchronous handling of request completion. This method will * be called when the record sent to the server has been acknowledged. When exception is not null in the callback, - * metadata will contain the special -1 value for all fields except for topicPartition, which will be valid. + * and the exception is a subclass of ApiException, metadata will be null. For all other exceptions, metadata will Review comment: What do you suggest? Should the docs be updated, or perhaps we should simply remove lines [1001-1002](https://github.com/apache/kafka/blob/3.1/clients/src/main/java/org/apache/kafka/clients/producer/KafkaProducer.java#L1001-L1002), as this would make the behaviour consistent across `Callback.onCompletion` and `InterceptorCallback.onComplete`, and in line with the current documented behaviour -- 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