Your experience level overflows once it exceeds the integer limit

Is this still a concern in the latest Minecraft version 14w30c? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Confirmed for

• 1.8.4 relates to MC-79954 and MC-79944
  I guess you can create one general report for this as it seems to affect all variables

confirmed for 1.8.7

Confirmed for

• 16w05b

FYI: the term is "overflow", not "overfloat".

Confirmed for 1.11-pre1.

Confirmed for 1.11.

Confirmed for 17w06a.

Confirmed for 17w15a.

Confirmed for 17w17b.

Confirmed for 1.12

Still present in 18w16a.
Might want to update the Steps to reproduce to 1.13-format, this renders the first point useless (as with the new command you can set the level)
Here's the updated version:
1.Type /xp set @s 2147483647 levels. Now your level is 2147483647.
2. Type /xp add @s 1 levels. XP disappears from display.
3. Type /xp add @s 1 levels again. Now your level is 1.

Thanks. I'd updated my setup in my world for this with the new commands, but never updated the ticket.

Happening in 1.15 and its snapshots. And in 1.15.1 Pre-Release 1.

You could turn the signed 32-bit integer into a signed 64-bit integer, but this requires 4 bytes more per player in the player data. Sure, this might be a bit small-minded, but is it really necessary to have such a high-level number? This is hardly playable in Survival? A solution would be a BigInt which is then saved as a string in the world file. Unfortunately Java does not support unsigned integer, so you would have to write a wrapper around the integer to only cut the negative range.

Java already has Math.addExact, which doesn't allow overflows. The fix is just to use that. Using a bigger number type would not fix the problem, just postpone it.

@@unknown, Math.addExact throws an exception on overflow which would not be helpful here. Capping the value at the maximum positive value sounds reasonable especially since such high XP levels can likely not be obtained in Survival anyways.

In 1.16.1 and 20w29a.

@Marcono1234, In survival, the maximum level is much less than 2^31-1, as the amount of xp points (not levels) is capped at the 32-bit limit, restricting you to level 21863. Rays Works on youtube has demonstrated this in vanilla survival on the ProtoTech server, using a very powerful XP farm which he ran for multiple weeks.

Can confirm in 20w48a.

Can confirm in 20w51a.

Can confirm in 21w03a.

Can confirm in 21w05b.

Can confirm in 21w06a.

Can confirm in 21w07a. Video attached.

Can confirm in 21w11a.

Can confirm in 21w13a.

Can confirm in 21w14a.

Can confirm in 21w15a.

Can confirm in 21w17a.

Can confirm in 1.16.5 and 21w18a.

Can confirm in 1.17.1.

Can confirm in 21w39a.

Can confirm in 1.18.1.