public String getKmsKeyId() {
        return this.kmsKeyId;
    }
<p>
The Amazon Web Services KMS key identifier that is used to encrypt the secret.
</p>

@return The Amazon Web Services KMS key identifier that is used to encrypt the secret.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/MasterUserSecret.java