lucasbru commented on code in PR #18729: URL: https://github.com/apache/kafka/pull/18729#discussion_r1939451460
########## group-coordinator/src/main/java/org/apache/kafka/coordinator/group/streams/topics/InternalTopicManager.java: ########## @@ -74,12 +76,16 @@ public static ConfiguredTopology configureTopics(LogContext logContext, Map<String, Integer> decidedPartitionCountsForInternalTopics = decidePartitionCounts(logContext, topology, topicMetadata, copartitionGroupsBySubtopology, log); - final Map<String, ConfiguredSubtopology> configuredSubtopologies = + final SortedMap<String, ConfiguredSubtopology> configuredSubtopologies = subtopologies.stream() .collect(Collectors.toMap( StreamsGroupTopologyValue.Subtopology::subtopologyId, - x -> fromPersistedSubtopology(x, decidedPartitionCountsForInternalTopics)) - ); + x -> fromPersistedSubtopology(x, decidedPartitionCountsForInternalTopics), + (v1, v2) -> { + throw new RuntimeException(String.format("Duplicate key for values %s and %s", v1, v2)); Review Comment: Suggestion is missing `key` :nerd_face: -- 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