public void setKmsKeyId(String kmsKeyId) {
        this.kmsKeyId = kmsKeyId;
    }
<p>
The ID of an KMS key used to protect the encrypted file system.
</p>

@param kmsKeyId
       The ID of an KMS key used to protect the encrypted file system.
aws-java-sdk-efs/src/main/java/com/amazonaws/services/elasticfilesystem/model/FileSystemDescription.java