jasonyanwenl opened a new pull request #11241: URL: https://github.com/apache/kafka/pull/11241
Currently in both `KStreamMap` and `KStreamFlatMap` classes, they will throw NPE if the call to `KeyValueMapper#apply` return Null. We should check whether the result of that call is Null and throw a more meaningful error message for better debugging. Two unit tests are also added to check if we successfully captured the Null. ### 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