Shekharrajak commented on code in PR #19311:
URL: https://github.com/apache/druid/pull/19311#discussion_r3212557778


##########
extensions-core/kafka-indexing-service/pom.xml:
##########
@@ -252,6 +257,30 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <!--
+          The bundled in-JVM test broker (kafka_2.13:3.9.x, ZooKeeper-mode) was
+          compiled against kafka-clients 3.9.x and references 
Utils.mkSet(Object[]),
+          which was removed in kafka-clients 4.x. This module pins 
kafka-clients to
+          4.2.0 to enable KIP-932 share-group support, so KafkaConfig static
+          initialization throws NoSuchMethodError under any JVM. The tests 
below
+          depend on TestBroker and must be skipped until the test broker 
migrates to
+          kafka_2.13:4.x (KRaft) or Testcontainers. Share-group code paths are
+          covered by ShareGroupIndexTaskRunnerTest, 
KafkaShareGroupRecordSupplierTest
+          (mock-based) and embedded-tests/EmbeddedShareGroupIngestionTest
+          (Testcontainers). Tracked as a follow-up of apache/druid#19311.
+        -->
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <configuration>
+          <excludes>
+            <exclude>**/KafkaIndexTaskTest.java</exclude>

Review Comment:
   Yes, planning to fix (upgrade to 4.2 version in all places) as part of this 
https://github.com/apache/druid/issues/19322 - I feel that we need bunch of 
changes, API compatibility issues in running tests , kafka docker image for IT 
tests and in source code - so want to keep it in separate PR.
   
   This PR mainly focus on Share group implementation. 
   
   



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