public void setClientToken(String clientToken) {
        this.clientToken = clientToken;
    }
<p>
The client idempotency token of the application to create. Its value must be unique for each request.
</p>

@param clientToken
       The client idempotency token of the application to create. Its value must be unique for each request.
aws-java-sdk-emrserverless/src/main/java/com/amazonaws/services/emrserverless/model/CreateApplicationRequest.java