From e95450221f30923b2b0daaa09b63463fd57843c9 Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Sun, 9 Mar 2025 16:41:21 +1100
Subject: [PATCH] SPIGOT-7999: ConcurrentModificationException in
 EntityLiving#hurtServer

---
 nms-patches/net/minecraft/world/entity/EntityLiving.patch | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/nms-patches/net/minecraft/world/entity/EntityLiving.patch b/nms-patches/net/minecraft/world/entity/EntityLiving.patch
index 55110c5ac..0e8567adf 100644
--- a/nms-patches/net/minecraft/world/entity/EntityLiving.patch
+++ b/nms-patches/net/minecraft/world/entity/EntityLiving.patch
@@ -516,7 +516,7 @@
                      if (!flag) {
                          this.indicateDamage(d0, d1);
                      }
-@@ -1282,7 +1526,7 @@
+@@ -1282,12 +1526,12 @@
                  this.playHurtSound(damagesource);
              }
  
@@ -525,6 +525,12 @@
  
              if (flag2) {
                  this.lastDamageSource = damagesource;
+                 this.lastDamageStamp = this.level().getGameTime();
+-                Iterator iterator = this.getActiveEffects().iterator();
++                Iterator iterator = new LinkedList<>(this.getActiveEffects()).iterator(); // CraftBukkit - SPIGOT-7999: copy to prevent CME in unrelated events
+ 
+                 while (iterator.hasNext()) {
+                     MobEffect mobeffect = (MobEffect) iterator.next();
 @@ -1363,7 +1607,7 @@
      }