From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sun, 23 Apr 2023 07:38:50 -0700
Subject: [PATCH] Skip worldstate access when waking players up during data
 deserialization

In general, worldstate read/write is unacceptable during
data deserialization and is racey even in Vanilla. But in Folia,
some accesses may throw and as such we need to fix this directly.

diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 436b3c5bf8b524efef4f2c065813764a83ed0f45..2480166aa0f7acefc1302bc44bc31b6ad48c0711 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -709,7 +709,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player imple
         this.getBukkitEntity().readExtraData(nbt); // CraftBukkit
 
         if (this.isSleeping()) {
-            this.stopSleeping();
+            this.stopSleepingRaw(); // Folia - do not modify or read worldstate during data deserialization
         }
 
         // CraftBukkit start
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 7c89c3558b6a3ddedfcc3c30274873afce7970b4..8ccc18881d047e2b06ab3494a25f27e209931413 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -4448,6 +4448,11 @@ public abstract class LivingEntity extends Entity implements Attackable {
             }
 
         });
+        // Folia start - separate out
+        this.stopSleepingRaw();
+    }
+    public void stopSleepingRaw() {
+        // Folia end - separate out
         Vec3 vec3d = this.position();
 
         this.setPose(Pose.STANDING);