if (length >= 8) {
      long mul = K2 + length * 2L;
      long a = load64(bytes, offset) + K2;
      long b = load64(bytes, offset + length - 8);
      long c = rotateRight(b, 37) * mul + a;
      long d = (rotateRight(a, 25) + b) * mul;
      return hashLength16(c, d, mul);
    }
    if (length >= 4) {
      long mul = K2 + length * 2;
      long a = load32(bytes, offset) & 0xFFFFFFFFL;