Describe the bug, provide any errors
A clear and concise description of what the bug is. Can you paste the error into https://gist.github.com?

Is this happening specifically on ViaFabric?
(Optional)

• It seems to not happen when using ViaVersion/ViaBackwards/ViaRewind installed on Bukkit/BungeeCord/Sponge/Velocity server.

How can we reproduce it?
Run /stop

Expected behaviour
The process should exit

Screenshots
If applicable, add screenshots to help explain your problem.

ViaVersion Dump:

• Type /viaversion dump, and put the link here.

Additional server info

Possible fix: daemon threads