}

	_, err = obj.Stat()
	if err != nil {
		return nil, err
	}

	return obj, nil
}

// TransferError will catch network errors during transfer.
// When TransferError() is called Close() will also
// be called, so we do not need to Wait() here.
func (w *writerAt) TransferError(err error) {
	_ = w.w.CloseWithError(err)
	_ = w.r.CloseWithError(err)
	w.err = err
}

        }

        synchronized (artifacts) {
            artifacts.remove(transferEvent.getResource());
        }

        listener.transferCompleted(event);
    }

    @Override
    public void transferError(TransferEvent transferEvent) {
        synchronized (transfers) {
            transfers.remove(transferEvent.getResource());
        }
        synchronized (artifacts) {