public void setClientToken(String clientToken) {
        this.clientToken = clientToken;
    }
<p>
Unique, case-sensitive identifier that you provide to ensure the idempotency of the request. For more
information, see <a href="https://docs.aws.amazon.com/ec2/latest/devguide/ec2-api-idempotency.html">Ensuring
idempotency</a>.
</p>

@param clientToken
       Unique, case-sensitive identifier that you provide to ensure the idempotency of the request. For more
       information, see <a
       href="https://docs.aws.amazon.com/ec2/latest/devguide/ec2-api-idempotency.html">Ensuring idempotency</a>.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/CreateNetworkAclRequest.java