}
        mergedItem.roles = roleList.toArray(new String[roleList.size()]);

        mergedItem.kinds = concatKinds(item1.kinds, item2.kinds);
        mergedItem.timestamp = item2.timestamp;
        mergedItem.queryFreq = item1.queryFreq + item2.queryFreq;
        mergedItem.docFreq = item1.docFreq + item2.docFreq;
        mergedItem.userBoost = item2.userBoost;
        mergedItem.emptySource = item2.emptySource;

            }

            SuggestItem mergedItem = item1;
            for (final SuggestItem item2 : items) {
                if (item1.equals(item2)) {
                    continue;
                }

                final String item2Id = item2.getId();
                if (item1Id.equals(item2Id)) {
                    mergedItem = SuggestItem.merge(mergedItem, item2);
                    mergedIdSet.add(item1Id);