Java API client version

7.17

Java version

jdk8

Elasticsearch Version

7.17

Problem description

Seems like ScoreSort sort by doc field - see https://github.com/elastic/elasticsearch-java/blob/7.17/java-client/src/main/java/co/elastic/clients/elasticsearch/_types/ScoreSort.java#L69
Probably it should be

public SortOptions.Kind _sortOptionsKind() {
        return SortOptions.Kind.Score;
}