Minecraft: Fix 'jna-4.4.0.jar' file contents differ

Want to play Minecraft or modpacks? Downloaded the game and couldn't start it because of a "different jna-4.4.0.jar" file? Well, here's a super simple and quick solution for that problem.
It is a known bug, and Mojang/Microsoft is working on fixing it as far as I know.

Download jna-4.4.0.jar:

Timestamps:
0:00 - Explaination
0:32 - Download replacement file
1:12 - Launching your game

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