public void setAttemptCreatedAt(java.util.Date attemptCreatedAt) {
        this.attemptCreatedAt = attemptCreatedAt;
    }
<p>
The date and time of when the job run attempt was created.
</p>

@param attemptCreatedAt
       The date and time of when the job run attempt was created.
aws-java-sdk-emrserverless/src/main/java/com/amazonaws/services/emrserverless/model/JobRunSummary.java