PaperMC/Spigot-Server-Patches/0124-Fix-Double-World-Add-issues.patch
Aikar b62dfa0bf9
Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
39ce5d3a SPIGOT-4399: ItemMeta.equals broken with AttributeModifiers

CraftBukkit Changes:
1cf8b5dc SPIGOT-4400: Populators running on existing chunks
116cb9a1 SPIGOT-4399: Add attribute modifier equality test
5ee1c18a SPIGOT-4398: Set ASM7_EXPERIMENTAL flag
2018-09-28 19:31:59 -04:00

37 lines
2 KiB
Diff

From af3d6d625bbb57168b75bd1995f4135cf107c94e Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 21 Jun 2016 22:54:34 -0400
Subject: [PATCH] Fix Double World Add issues
Vanilla will double add Spider Jockeys to the world, so ignore already added.
Also add debug if something else tries to, and abort before world gets bad state
diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
index 4a0f3989e6..695044b1b1 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -1052,7 +1052,7 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
}
public static void a(Entity entity, GeneratorAccess generatoraccess, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason reason) {
- if (generatoraccess.addEntity(entity, reason) && entity.isVehicle()) {
+ if (!entity.valid && generatoraccess.addEntity(entity, reason) && entity.isVehicle()) { // Paper
// CraftBukkit end
Iterator iterator = entity.bP().iterator();
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index d31101861c..a81c7dfa2e 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -993,6 +993,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
public boolean addEntity(Entity entity, SpawnReason spawnReason) { // Changed signature, added SpawnReason
org.spigotmc.AsyncCatcher.catchOp( "entity add"); // Spigot
if (entity == null) return false;
+ if (entity.valid) { MinecraftServer.LOGGER.error("Attempted Double World add on " + entity, new Throwable()); return true; } // Paper
org.bukkit.event.Cancellable event = null;
if (entity instanceof EntityLiving && !(entity instanceof EntityPlayer)) {
--
2.19.0