docs: public int compress(ByteBuffer src, int srcOff, int srcLen, ByteBuffer dest, int destOff, int maxDestLen) {
      final int compressedLength = compressor.compress(src, srcOff, srcLen, dest, destOff + 4, maxDestLen - 4);
      putOriginalLength(dest, destOff, srcLen);
      return compressedLength + 4;
    }