Don't fire unleash/dismount events from worldgen threads

Mojang can trigger this during worldgen and tries to fire bukkit events.
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Aikar 2020-06-29 04:04:18 -04:00
parent 9edbfe5fe8
commit 55ab552c03
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@ -0,0 +1,33 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 29 Jun 2020 04:00:07 -0400
Subject: [PATCH] Don't fire unleash/dismount events from worldgen threads
Mojang can trigger this during worldgen and tries to fire bukkit events.
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 38887c1b7849926fab0a3b2db0e7b81388364172..0e0bc2afe8bce6305062555a599c043613f4abef 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -2117,7 +2117,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
// CraftBukkit start
CraftEntity craft = (CraftEntity) entity.getBukkitEntity().getVehicle();
Entity orig = craft == null ? null : craft.getHandle();
- if (getBukkitEntity() instanceof Vehicle && entity.getBukkitEntity() instanceof LivingEntity) {
+ if (getBukkitEntity() instanceof Vehicle && entity.getBukkitEntity() instanceof LivingEntity && MCUtil.isMainThread()) { // Paper
VehicleExitEvent event = new VehicleExitEvent(
(Vehicle) getBukkitEntity(),
(LivingEntity) entity.getBukkitEntity(), !suppressCancellation // Paper
diff --git a/src/main/java/net/minecraft/server/EntityInsentient.java b/src/main/java/net/minecraft/server/EntityInsentient.java
index 605bbf0174e60f795e445193a0284739ea452946..301f1ae8820df24d7c8453335abc1934aa7fae43 100644
--- a/src/main/java/net/minecraft/server/EntityInsentient.java
+++ b/src/main/java/net/minecraft/server/EntityInsentient.java
@@ -1339,7 +1339,7 @@ public abstract class EntityInsentient extends EntityLiving {
boolean flag1 = super.a(entity, flag);
if (flag1 && this.isLeashed()) {
- this.world.getServer().getPluginManager().callEvent(new EntityUnleashEvent(this.getBukkitEntity(), UnleashReason.UNKNOWN)); // CraftBukkit
+ if (MCUtil.isMainThread()) this.world.getServer().getPluginManager().callEvent(new EntityUnleashEvent(this.getBukkitEntity(), UnleashReason.UNKNOWN)); // CraftBukkit // Paper
this.unleash(true, true);
}