@Override
    public StartDirectoryListingResult startDirectoryListing(StartDirectoryListingRequest request) {
        throw new java.lang.UnsupportedOperationException();
    }
Abstract implementation of {@code AWSTransfer}. Convenient method forms pass through to the corresponding overload
that takes a request object, which throws an {@code UnsupportedOperationException}.
aws-java-sdk-transfer/src/main/java/com/amazonaws/services/transfer/AbstractAWSTransfer.java