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Lee Dongjin commented on KAFKA-8910: ------------------------------------ I reviewed the problem, and it seems like the title and description here are a little bit unaccurate; the documentation is wrong on KafkaProducer.InterceptorCallback, not org.apache.kafka.clients.producer.Callback. (i.e., reversed.) > Incorrect javadoc at org.apache.kafka.clients.producer.Callback > --------------------------------------------------------------- > > Key: KAFKA-8910 > URL: https://issues.apache.org/jira/browse/KAFKA-8910 > Project: Kafka > Issue Type: Bug > Reporter: Sergey Ushakov > Priority: Major > > h1. Problem > Javadoc for org.apache.kafka.clients.producer.Callback states: > {noformat} > * @param metadata The metadata for the record that was sent (i.e. the > partition and offset). Null if an error > * occurred. {noformat} > In fact, metadata is never null since KAFKA-6180. See > org.apache.kafka.clients.producer.KafkaProducer.InterceptorCallback#onCompletion > for details. -- This message was sent by Atlassian Jira (v8.3.2#803003)