chia7712 commented on code in PR #18725:
URL: https://github.com/apache/kafka/pull/18725#discussion_r1949798227


##########
core/src/test/scala/unit/kafka/server/ReplicaManagerTest.scala:
##########
@@ -5977,6 +5980,67 @@ class ReplicaManagerTest {
     )
   }
 
+  @Test
+  def testDelayedShareFetchPurgatoryOperationExpiration(): Unit = {
+    val mockLogMgr = TestUtils.createLogManager(config.logDirs.map(new 
File(_)))
+    val rm = new ReplicaManager(

Review Comment:
   As a reminder, it's crucial to utilize a `try-finally` block to ensure 
proper closure of the `ReplicaManager`. Failing to do so can result in an 
unreleased thread from the purgatory, potentially leading to errors in 
subsequent integration tests that incorporate thread leak detection.
   
   ```
   org.opentest4j.AssertionFailedError: Found 1 unexpected threads during 
@BeforeAll: executor-ShareFetch ==> expected: <true> but was: <false> 
   ```
   Also, the error can be reproduced by following command.
   ```
   ./gradlew core:test --tests ReplicaManagerTest --tests 
SaslApiVersionsRequestTest --tests LeaderEpochIntegrationTest --tests 
RequestQuotaTest -PmaxParallelForks=1
   ```
   
   I will fix it in https://issues.apache.org/jira/browse/KAFKA-18770



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