return value of "org.bukkit.event.world.LootGenerateEvent.getLootTable()" is null

Expected behavior

loot table should not be null

Observed/Actual behavior

java.lang.NullPointerException: Cannot invoke "org.bukkit.loot.LootTable.getKey()" because the return value of "org.bukkit.event.world.LootGenerateEvent.getLootTable()" is null

it is marked as not null

/**
 * Get the loot table used to generate loot.
 *
 * @return the loot table
 */
@NotNull
public LootTable getLootTable() {
    return lootTable;
}

Steps/models to reproduce

Listen for loot table event

@eventhandler
public void onLootGenerate(LootGenerateEvent event) {
if (event.getInventoryHolder() instanceof Chest
&& event.getEntity() instanceof Player) {
...
if (lootTables.containsKey(event.getLootTable().getKey().toString())) { <---- problematic line
...
}
}
}

loot table should never be null, either fix null loot table or mark it as nullable in API

Plugin and Datapack List

Custom plugin with just this listener

Paper version

This server is running Paper version git-Paper-"a2ba452" (MC: 1.20.2) (Implementing API version 1.20.2-R0.1-SNAPSHOT) (Git: a2ba452)
You are running the latest version
Previous version: git-Paper-"29d1c7b" (MC: 1.20.1)

Other

No response

[Machine-Maker]

Confirmed, I see the issue. will fix now