[MC-238375] Crash and/or data corruption upon attempting to save a world with a world border center over 30 million blocks

The bug

Attempting to save a world with a world border center over 30 million blocks causes the player to be unable to respawn. The game crashes (Exception generating new chunk caused by java.lang.ArrayIndexOutOfBoundsException), and/or the world is corrupted (java.nio.channels.OverlappingFileLockException: null), and you become unable to open it again.

"Negative index in crash report handler (0/15)" is spammed to the debug log.

To reproduce

1. Create a new world.

2. Execute /worldborder center 50000000 50000000.
3. Execute /kill.
4. ❌ You are unable to respawn.
5. Attempt to go to title screen.
6. ❌ The game crashes, or the world becomes unable to be opened again.

Attachments

crash-2021-10-05_12.19.27-server.txt

crash-2021-10-07_20.22.34-server.txt

deobf_crash-2021-10-07_20.22.34-server.txt

Comments 4

ampolive 2021-10-07T23:17:52Z

This does not happen in 1.17.1, though you are softlocked out of the game all the same.

syarumi 2021-11-12T02:39:46Z

Can confirm data corruption, my game didn't crash but it couldn't detect the world save anymore. Got the same errors as well.

Moesh 2021-11-12T05:59:23Z

Was able to repro

muzikbike 2021-11-16T09:33:04Z

Suggested fix: the world border shouldn't be clamped to 30 million max in the first place, but rather the 32 bit limit, but with values above 30 (32?) million unsupported.