public void setSuccessfulSet(java.util.Collection<EventDetails> successfulSet) {
        if (successfulSet == null) {
            this.successfulSet = null;
            return;
        }

        this.successfulSet = new java.util.ArrayList<EventDetails>(successfulSet);
    }
<p>
Information about the events that could be retrieved.
</p>

@param successfulSet
       Information about the events that could be retrieved.
aws-java-sdk-health/src/main/java/com/amazonaws/services/health/model/DescribeEventDetailsResult.java