From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: jmp <jasonpenilla2@me.com>
Date: Sun, 4 Oct 2020 19:55:25 -0700
Subject: [PATCH] Fix CME on adding a passenger in CreatureSpawnEvent


diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index a623c22cd03ad92657e661851fddc76a30986755..90e9797cc1f3a4aa0a2bee28dca364e6f6dd0c0b 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -3180,7 +3180,7 @@ public abstract class Entity implements Nameable, CommandSource, net.minecraft.s
     }
 
     public Stream<Entity> getSelfAndPassengers() {
-        return Stream.concat(Stream.of(this), this.passengers.stream().flatMap(Entity::getSelfAndPassengers));
+        return Stream.concat(Stream.of(this), com.google.common.collect.ImmutableList.copyOf(this.passengers).stream().flatMap(Entity::getSelfAndPassengers)); // Paper
     }
 
     public boolean hasOnePlayerPassenger() {