public CreateDomainConfigurationRequest withValidationCertificateArn(String validationCertificateArn) {
        setValidationCertificateArn(validationCertificateArn);
        return this;
    }
<p>
The certificate used to validate the server certificate and prove domain name ownership. This certificate must be
signed by a public certificate authority. This value is not required for Amazon Web Services-managed domains.
</p>

@param validationCertificateArn
       The certificate used to validate the server certificate and prove domain name ownership. This certificate
       must be signed by a public certificate authority. This value is not required for Amazon Web
       Services-managed domains.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/CreateDomainConfigurationRequest.java