akatona84 commented on code in PR #15605:
URL: https://github.com/apache/kafka/pull/15605#discussion_r1541378249


##########
core/src/test/scala/unit/kafka/coordinator/transaction/ProducerIdManagerTest.scala:
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@@ -38,22 +38,49 @@ import org.mockito.Mockito.{mock, when}
 import java.util.concurrent.{CountDownLatch, Executors, TimeUnit}
 import java.util.concurrent.atomic.AtomicBoolean
 import scala.collection.mutable
-import scala.util.{Failure, Success}
+import scala.util.{Failure, Success, Try}
 
 class ProducerIdManagerTest {
 
   var brokerToController: NodeToControllerChannelManager = 
mock(classOf[NodeToControllerChannelManager])
   val zkClient: KafkaZkClient = mock(classOf[KafkaZkClient])
 
+  case class ErrorCount(error: Errors, var repeat: Int)
+
+  object ErrorCount {
+    def once(error: Errors): ErrorCount = {
+      ErrorCount(error, 1)
+    }
+  }

Review Comment:
   as I'm simplifying the whole stuff can be simplified as well :D thx



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