}
      }
      if (ticker != null) {
        builder.ticker(ticker);
      }
      return builder;
    }

    private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
      in.defaultReadObject();
      CacheBuilder<K, V> builder = recreateCacheBuilder();
      this.delegate = builder.build();
    }

    private Object readResolve() {
      return delegate;

    static long attrExpirationPeriod;
    static boolean ignoreCopyToException;

    static {

        try {
            Class.forName("jcifs.smb1.Config");
        } catch (final ClassNotFoundException cnfe) {
            logger.error("Failed to load jcifs.smb1.Config class", cnfe);
        }
        attrExpirationPeriod = Config.getLong("jcifs.smb1.smb.client.attrExpirationPeriod", DEFAULT_ATTR_EXPIRATION_PERIOD);