CalvinConfluent commented on code in PR #19355:
URL: https://github.com/apache/kafka/pull/19355#discussion_r2068961294
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core/src/main/scala/kafka/server/KafkaApis.scala:
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@@ -2472,7 +2472,17 @@ class KafkaApis(val requestChannel: RequestChannel,
val filteredProducerIds =
listTransactionsRequest.data.producerIdFilters.asScala.map(Long.unbox).toSet
val filteredStates =
listTransactionsRequest.data.stateFilters.asScala.toSet
val durationFilter = listTransactionsRequest.data.durationFilter()
- val response = txnCoordinator.handleListTransactions(filteredProducerIds,
filteredStates, durationFilter)
+ val transactionalIdPatternFilter = if
(listTransactionsRequest.data.transactionalIdPattern == null) {
+ ""
Review Comment:
The main reason to convert null to an empty string is to avoid null handling
in the downstream. But yeah, looks like there is only one place to check null.
Updated to use null in the code path.
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