Copilot commented on code in PR #19981:
URL: https://github.com/apache/kafka/pull/19981#discussion_r2152531189


##########
core/src/test/scala/integration/kafka/api/AuthorizerIntegrationTest.scala:
##########
@@ -225,7 +227,9 @@ class AuthorizerIntegrationTest extends 
AbstractAuthorizerIntegrationTest {
       resp.data.errorCode)),
     ApiKeys.ALTER_SHARE_GROUP_OFFSETS -> ((resp: 
AlterShareGroupOffsetsResponse) => Errors.forCode(
       resp.data.errorCode)),
-    ApiKeys.STREAMS_GROUP_HEARTBEAT -> ((resp: StreamsGroupHeartbeatResponse) 
=> Errors.forCode(resp.data.errorCode))
+    ApiKeys.STREAMS_GROUP_HEARTBEAT -> ((resp: StreamsGroupHeartbeatResponse) 
=> Errors.forCode(resp.data.errorCode)),
+    ApiKeys.STREAMS_GROUP_DESCRIBE -> ((resp: StreamsGroupDescribeResponse) =>
+      Errors.forCode(resp.data.groups.asScala.find(g => streamsGroup == 
g.groupId).head.errorCode))

Review Comment:
   Using .head on the option returned by find could result in a 
NoSuchElementException if no matching group is found. Consider handling the 
case using getOrElse or pattern matching to provide a clearer error or fallback 
value.
   ```suggestion
         Errors.forCode(resp.data.groups.asScala.find(g => streamsGroup == 
g.groupId)
           .getOrElse(throw new NoSuchElementException(s"No group found with 
groupId: $streamsGroup")).errorCode))
   ```



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