public void setNotAfter(java.util.Date notAfter) {
        this.notAfter = notAfter;
    }
<p>
The timestamp when the SSL/TLS certificate expires.
</p>

@param notAfter
       The timestamp when the SSL/TLS certificate expires.
aws-java-sdk-lightsail/src/main/java/com/amazonaws/services/lightsail/model/LoadBalancerTlsCertificate.java