AndrewJSchofield commented on code in PR #14768: URL: https://github.com/apache/kafka/pull/14768#discussion_r1394821601
########## 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: Trim please. ########## clients/src/main/java/org/apache/kafka/clients/consumer/internals/AsyncKafkaConsumer.java: ########## @@ -163,11 +163,9 @@ public class AsyncKafkaConsumer<K, V> implements ConsumerDelegate<K, V> { this.clientId = config.getString(CommonClientConfigs.CLIENT_ID_CONFIG); LogContext logContext = createLogContext(config, groupRebalanceConfig); this.log = logContext.logger(getClass()); - 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: This works for a group id which is the empty string, but not for a whitespace string. I think `this.groupId.get().trim().isEmpty()` will do it. -- 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