peterxcli commented on code in PR #18101:
URL: https://github.com/apache/kafka/pull/18101#discussion_r1881566499


##########
clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerHeartbeatRequestManager.java:
##########
@@ -97,6 +99,18 @@ public boolean handleSpecificError(final 
ConsumerGroupHeartbeatResponse response
         boolean errorHandled;
 
         switch (error) {
+            case UNSUPPORTED_VERSION:
+                // Handle consumer-specific unsupported version error
+                String message = CONSUMER_PROTOCOL_NOT_SUPPORTED_MSG;
+                if (errorMessage.contains(REGEX_RESOLUTION_NOT_SUPPORTED_MSG)) 
{
+                    // If the error is about regex subscription, use the 
original error message
+                    message = errorMessage;
+                }

Review Comment:
   So I guess we should add a handle `onSpeficFailure` in each consumer just 
like `handleSpecificError` did?



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