showuon commented on a change in pull request #11403:
URL: https://github.com/apache/kafka/pull/11403#discussion_r730753939
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File path: clients/src/main/java/org/apache/kafka/common/TopicIdPartition.java
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@@ -47,7 +58,7 @@ public Uuid topicId() {
}
/**
- * @return the topic name.
+ * @return the topic name or null.
Review comment:
I think we should add more explanation for null return value:
ex: @return the topic name or null if there's only topic ID set.
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