public String getADDomainJoinUser() {
        return this.aDDomainJoinUser;
    }
<p>
Required only when establishing a cross-realm trust with an Active Directory domain. A user with sufficient
privileges to join resources to the domain.
</p>

@return Required only when establishing a cross-realm trust with an Active Directory domain. A user with
        sufficient privileges to join resources to the domain.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/KerberosAttributes.java