Map<String, Map<String, CacheEntry<DfsReferralDataInternal>>> domains = getTrustedDomains(tf);
            if ( domains != null ) {
                if ( log.isTraceEnabled() ) {
                    dumpReferralCache(domains);
                }

                root = root.toLowerCase();
                /*
                 * domain-based DFS root shares to links for each
                 */