about maven dependencies

[novenzhen]

in the pom.xm,elasticsearch-java has already include elasticsearch-rest-client dependency,why depend elastcisearch-rest-client again?

co.elastic.clients elasticsearch-java ${elasticsearch-java} commons-logging commons-logging

    <dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>elasticsearch-rest-client</artifactId> <!-- is Apache 2-->
        <version>${elasticsearch-java}</version>
        <exclusions>
            <exclusion>
                <groupId>commons-logging</groupId>
                <artifactId>commons-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>