public String getKmsKeyArn() {
        return this.kmsKeyArn;
    }
<p>
The Amazon Resource Name (ARN) of the KMS key for encrypting emails in the archive.
</p>

@return The Amazon Resource Name (ARN) of the KMS key for encrypting emails in the archive.
aws-java-sdk-mailmanager/src/main/java/com/amazonaws/services/mailmanager/model/CreateArchiveRequest.java