From 417e09c01cdadc732b5c9ea0ba14c591af101d2b Mon Sep 17 00:00:00 2001 From: Aikar 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/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java index fd2a204d3e..8fd4478f2b 100644 --- a/src/main/java/net/minecraft/server/WorldServer.java +++ b/src/main/java/net/minecraft/server/WorldServer.java @@ -936,6 +936,7 @@ public class WorldServer extends World { // CraftBukkit start private boolean addEntity0(Entity entity, CreatureSpawnEvent.SpawnReason spawnReason) { org.spigotmc.AsyncCatcher.catchOp( "entity add"); // Spigot + if (entity.valid) { MinecraftServer.LOGGER.error("Attempted Double World add on " + entity, new Throwable()); return true; } // Paper if (entity.dead) { // WorldServer.LOGGER.warn("Tried to add entity {} but it was marked as removed already", EntityTypes.getName(entity.getEntityType())); // CraftBukkit return false; -- 2.22.0