jolshan commented on a change in pull request #10584:
URL: https://github.com/apache/kafka/pull/10584#discussion_r649353683
##########
File path:
clients/src/main/java/org/apache/kafka/common/requests/MetadataRequest.java
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@@ -92,6 +93,15 @@ public MetadataRequest build(short version) {
if (!data.allowAutoTopicCreation() && version < 4)
throw new UnsupportedVersionException("MetadataRequest
versions older than 4 don't support the " +
"allowAutoTopicCreation field");
+ if (version >= 10) {
+ if (data.topics() != null) {
+ data.topics().forEach(topic -> {
+ if (topic.name() == null || topic.topicId() !=
Uuid.ZERO_UUID)
+ throw new
UnsupportedVersionException("MetadataRequest version " + version +
+ " does not support null topic names or
topic IDs.");
Review comment:
Would it make sense to say non-zero topic IDs? Since the null ID is
represented with all zeros?
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