IgnacioAcunaF opened a new pull request #10858: URL: https://github.com/apache/kafka/pull/10858
**Jira:**: https://issues.apache.org/jira/browse/KAFKA-12926 Instead of setting "null" to negative offsets partition (as in KAFKA-9507), this PR aims to skip those cases from the returned list, because setting them in "null" can cause java.lang.NullPointerExceptions on downstreams methods that tries to access the data on them, because they are expecting an _OffsetAndMetadata_ and they encouter null values. For example, at ConsumerGroupCommand.scala at core: ``` val partitionOffsets = consumerSummary.assignment.topicPartitions.asScala .map { topicPartition => topicPartition -> committedOffsets.get(topicPartition).map(_.offset) }.toMap ``` If topicPartition has an negative offset, the committedOffsets.get(topicPartition) is null (as defined on KAFKA-9507), which translates into null.map(_.offset), which will lead to: _Error: Executing consumer group command failed due to null java.lang.NullPointerException_ Unit tests added to assert that topics's partitions with an INVALID_OFFSET are not considered on the returned list of the consmer groups's offsets, so the downstream methods receive only valid _OffsetAndMetadata_ information. ### 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
