results = repositorySystem.resolveMetadata(session, requests);

            return processResults(request, trace, results, null, candidates);
        }

        return null;
    }

    private PluginPrefixResult processResults(
            PluginPrefixRequest request,
            RequestTrace trace,
            List<MetadataResult> results,

            resultData.setData(new byte[0]);
            resultData.setEncoding(Constants.UTF_8);
            resultData.setTransformerName(Constants.NO_TRANSFORMER);
            processResult(urlQueue, responseData, resultData);
        } else if (isSuccessful(responseData)) {
            if (transformer == null) {
                if (logger.isDebugEnabled()) {