public void setUserPoolClientId(String userPoolClientId) {
        this.userPoolClientId = userPoolClientId;
    }
<p>
The ID of the Amazon Cognito user pool client.
</p>

@param userPoolClientId
       The ID of the Amazon Cognito user pool client.
aws-java-sdk-elasticloadbalancingv2/src/main/java/com/amazonaws/services/elasticloadbalancingv2/model/AuthenticateCognitoActionConfig.java