in src/main/java/org/apache/sling/distribution/journal/kafka/KafkaClientProvider.java [174:180]
private Map<TopicPartition, Long> getOffsets(Reset reset, KafkaConsumer<String, String> consumer,
TopicPartition topicPartition) {
Collection<TopicPartition> topicPartitions = singleton(topicPartition);
return (reset == Reset.earliest) //
? consumer.beginningOffsets(topicPartitions)
: consumer.endOffsets(topicPartitions);
}