[KAFKA-16544] DescribeTopicsResult#allTopicIds and DescribeTopicsResult#allTopicNames should return null instead of throwing NPE

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.8.0
• Assignee: Kuan Po Tseng
• Reporter: Chia-Ping Tsai
• Created: 12/Apr/24 19:30
• Updated: 20/May/24 09:20
• Resolved: 17/May/24 19:41

Description

     * @return A future map from topic names to descriptions which can be used to check
     *         the status of individual description if the describe topic request used
     *         topic names, otherwise return null, this request succeeds only if all the
     *         topic descriptions succeed

According the docs, it should return null if we try to get the result unmatched to the request. For example, we call `allTopicNames` in passing `TopicIdCollection`. However, the current implementation will throw NPE directly

Issue Links

• links to: GitHub Pull Request #15979