@Override
    public java.util.concurrent.Future<ListCoverageStatisticsResult> listCoverageStatisticsAsync(ListCoverageStatisticsRequest request) {

        return listCoverageStatisticsAsync(request, null);
    }
Abstract implementation of {@code AWSInspector2Async}. Convenient method forms pass through to the corresponding
overload that takes a request object and an {@code AsyncHandler}, which throws an
{@code UnsupportedOperationException}.
aws-java-sdk-inspector2/src/main/java/com/amazonaws/services/inspector2/AbstractAWSInspector2Async.java