kirktrue commented on code in PR #14768: URL: https://github.com/apache/kafka/pull/14768#discussion_r1395013498
########## clients/src/main/java/org/apache/kafka/clients/consumer/internals/LegacyKafkaConsumer.java: ########## @@ -150,11 +150,9 @@ public class LegacyKafkaConsumer<K, V> implements ConsumerDelegate<K, V> { LogContext logContext = createLogContext(config, groupRebalanceConfig); this.log = logContext.logger(getClass()); boolean enableAutoCommit = config.getBoolean(ENABLE_AUTO_COMMIT_CONFIG); - groupId.ifPresent(groupIdStr -> { - if (groupIdStr.isEmpty()) { - log.warn("Support for using the empty group id by consumers is deprecated and will be removed in the next major release."); - } - }); + + if (this.groupId.isPresent() && this.groupId.get().isEmpty()) Review Comment: The use of `AbstractConfig.getString()` trims the returned value, so it will be sans whitespace already. A newly-added unit test shows this to be the case. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org