kirktrue commented on code in PR #20965:
URL: https://github.com/apache/kafka/pull/20965#discussion_r2579181541


##########
clients/src/main/java/org/apache/kafka/clients/consumer/internals/StreamsGroupHeartbeatRequestManager.java:
##########
@@ -486,7 +493,10 @@ private NetworkClientDelegate.UnsentRequest 
makeHeartbeatRequestAndLogResponse(f
                 else
                     logger.error("StreamsGroupHeartbeatRequest failed because 
of {}: {}", error, response);
             } else {
-                logger.error("StreamsGroupHeartbeatRequest failed because of 
unexpected exception.", exception);
+                if (isClosed) {
+                    logger.debug("StreamsGroupHeartbeatRequest failed because 
of exception during close: ", exception);
+                } else
+                    logger.error("StreamsGroupHeartbeatRequest failed because 
of unexpected exception: ", exception);

Review Comment:
   Same here: both the `if` and the `else` should use brackets _or_ both `if` 
and the `else` branches should _not_ use brackets.



##########
clients/src/main/java/org/apache/kafka/clients/consumer/internals/AbstractHeartbeatRequestManager.java:
##########
@@ -315,7 +322,10 @@ private NetworkClientDelegate.UnsentRequest 
logResponse(final NetworkClientDeleg
                 else
                     logger.error("{} failed because of {}: {}", 
heartbeatRequestName(), error, response);
             } else {
-                logger.error("{} failed because of unexpected exception.", 
heartbeatRequestName(), exception);
+                if (isClosed) {
+                    logger.debug("{} failed because of exception during close: 
{}", heartbeatRequestName(), exception);
+                } else
+                    logger.error("{} failed because of unexpected exception: 
{}", heartbeatRequestName(), exception);

Review Comment:
   Nitpicky, sure, but I think we should be consistent with the use of the 
brackets.



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