The posts here are visible in the homepage for everyone too if not marked as spoilers. That's why when disclosing information about the solution, they should be marked. There are comments that don't need it, see the ones below, most of them don't.

Chrono79, what are you doing in the comments of a solution, if not spoiling the solution? 🤔

Ok nmv I fixed the darkmode lightmode bug

Thanks for solving it man :)

1. I have no idea how to fix that :)
2. The table is preloaded as int[], should I use an ArrayList<Integer> instead?
3. Yes I know :D

It has become smaller than the original generator polynomial.

At second step take lead term from new message polynomial

Good luck :)

Java is available now

Java is coming soon

Please, use spoiler flag next time.