public void setCreatedTimestamp(java.util.Date createdTimestamp) {
        this.createdTimestamp = createdTimestamp;
    }
<p>
The timestamp of when the Add On instance was created.
</p>

@param createdTimestamp
       The timestamp of when the Add On instance was created.
aws-java-sdk-mailmanager/src/main/java/com/amazonaws/services/mailmanager/model/GetAddonInstanceResult.java