log.trace("Have DC referral " + dr);
        }

        if ( dr != null && domain.equals(dr.getServer()) && root.equals(dr.getShare()) ) {
            // If we do cache these we never get to the properly cached
            // standalone referral we might have.
            log.warn("Dropping self-referential referral " + dr);
            dr = null;
        }
        return dr;
    }


    /**

    static CIFSContext getCachedContext ( String context, Properties props ) throws CIFSException {
        CIFSContext cached = CONTEXT_CACHE.get(context);
        if ( cached == null ) {
            cached = new BaseContext(new PropertyConfiguration(props));
            CONTEXT_CACHE.put(context, cached);
        }
        return cached;
    }


    /**
     * @param applyMutations

        return response;
    }


    @Override
    public boolean exists () throws SmbException {

        if ( this.attrExpiration > System.currentTimeMillis() ) {
            log.trace("Using cached attributes");
            return this.isExists;
        }

        this.attributes = ATTR_READONLY | ATTR_DIRECTORY;
        this.createTime = 0L;
        this.lastModified = 0L;
        this.lastAccess = 0L;

            buffer[i] = 0;
    }

    /**
     * Continues an MD4 message digest using the input byte.
     */
    public void engineUpdate (byte b) {
        // compute number of bytes still unhashed; ie. present in buffer
        int i = (int)(count % BLOCK_LENGTH);
        count++;                                        // update number of bytes
        buffer[i] = b;
        if (i == BLOCK_LENGTH - 1)

         * be cached and cause other types to fail even though they may
         * not be the authority for the name. For example, if a WINS lookup
         * for FOO fails and caches unknownAddress for FOO, a subsequent
         * lookup for FOO using BCAST should not fail because of that
         * name cached from WINS.
         *

                 * be cached and cause other types to fail even though they may
                 * not be the authority for the name. For example, if a WINS lookup
                 * for FOO fails and caches unknownAddress for FOO, a subsequent
                 * lookup for FOO using BCAST should not fail because of that
                 * name cached from WINS.
                 *