break;
        case FAVORITE:
            processFavoriteRequest(request, response, chain);
            break;
        case FAVORITES:
            processFavoritesRequest(request, response, chain);
            break;
        case PING:
            processPingRequest(request, response, chain);
            break;
        case SCROLL:

                        negoResp.getCommonCapabilities(),
                        curSessId,
                        token);

                    if ( chain != null ) {
                        request.chain((ServerMessageBlock2) chain);
                    }

                    request.setDigest(this.digest);
                    request.setSessionId(curSessId);

                    try {

            CommonServerMessageBlockRequest last = null;
            CommonServerMessageBlockRequest chain = curHead;
            while ( chain != null ) {
                n++;
                int size = chain.size();
                int cost = chain.getCreditCost();
                CommonServerMessageBlockRequest next = chain.getNext();
                if ( log.isTraceEnabled() ) {
                    log.trace(

            ServerMessageBlock2Request<?> cur = cr;

            if ( first != null ) {
                cr.chain(first);
                cur = first;

                for ( ServerMessageBlock2Request<?> req : others ) {
                    cur.chain(req);
                    cur = req;
                }
            }