@Override
    public java.util.concurrent.Future<ListSharedEndpointsResult> listSharedEndpointsAsync(ListSharedEndpointsRequest request) {

        return listSharedEndpointsAsync(request, null);
    }
Returns the executor service used by this client to execute async requests.

@return The executor service used by this client to execute async requests.
aws-java-sdk-s3outposts/src/main/java/com/amazonaws/services/s3outposts/AmazonS3OutpostsAsyncClient.java