public boolean resolveHashes;
    public long expiration;

    DfsReferral next;
    Map map;
    String key = null;

    public DfsReferral()
    {
        this.next = this;
    }

    void append(DfsReferral dr)
    {
        dr.next = next;
        next = dr;
    }

    public String toString() {
        return "DfsReferral[pathConsumed=" + pathConsumed +