@Override
    public java.util.concurrent.Future<CreateSpaceResult> createSpaceAsync(CreateSpaceRequest request) {

        return createSpaceAsync(request, null);
    }
Abstract implementation of {@code AWSRepostspaceAsync}. 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-repostspace/src/main/java/com/amazonaws/services/repostspace/AbstractAWSRepostspaceAsync.java