abbccdda commented on a change in pull request #9084:
URL: https://github.com/apache/kafka/pull/9084#discussion_r460671888
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File path:
clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java
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@@ -728,7 +728,11 @@ protected void onJoinPrepare(int generation, String
memberId) {
subscriptions.resetGroupSubscription();
if (exception != null) {
- throw new KafkaException("User rebalance callback throws an
error", exception);
+ if (exception instanceof KafkaException) {
+ throw (KafkaException) exception;
Review comment:
Why do we need this cast?
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