PaperMC/paper-server/nms-patches/net/minecraft/world/entity/animal/EntityBee.patch

--- a/net/minecraft/world/entity/animal/EntityBee.java
+++ b/net/minecraft/world/entity/animal/EntityBee.java
@@ -243,7 +243,7 @@
                 }
 
                 if (b0 > 0) {
-                    ((EntityLiving) entity).addEffect(new MobEffect(MobEffects.POISON, b0 * 20, 0), this);
+                    ((EntityLiving) entity).addEffect(new MobEffect(MobEffects.POISON, b0 * 20, 0), this, org.bukkit.event.entity.EntityPotionEffectEvent.Cause.ATTACK); // CraftBukkit
                 }
             }
 
@@ -642,11 +642,15 @@
         if (this.isInvulnerable(damagesource)) {
             return false;
         } else {
-            if (!this.level.isClientSide) {
+            // CraftBukkit start
+            boolean result = super.damageEntity(damagesource, f);
+
+            if (result && !this.level.isClientSide) {
                 this.beePollinateGoal.l();
             }
 
-            return super.damageEntity(damagesource, f);
+            return result;
+            // CraftBukkit end
         }
     }
 
@@ -1216,7 +1220,7 @@
                             }
                         }
 
-                        if (flag) {
+                        if (flag && !org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(EntityBee.this, blockposition, iblockdata.set(blockstateinteger, (Integer) iblockdata.get(blockstateinteger) + 1)).isCancelled()) { // Spigot
                             EntityBee.this.level.triggerEffect(2005, blockposition, 0);
                             EntityBee.this.level.setTypeUpdate(blockposition, (IBlockData) iblockdata.set(blockstateinteger, (Integer) iblockdata.get(blockstateinteger) + 1));
                             EntityBee.this.fS();
@@ -1289,7 +1293,7 @@
         @Override
         protected void a(EntityInsentient entityinsentient, EntityLiving entityliving) {
             if (entityinsentient instanceof EntityBee && this.mob.hasLineOfSight(entityliving)) {
-                entityinsentient.setGoalTarget(entityliving);
+                entityinsentient.setGoalTarget(entityliving, org.bukkit.event.entity.EntityTargetEvent.TargetReason.TARGET_ATTACKED_ENTITY, true); // CraftBukkit - reason
             }
 
         }
@@ -1298,7 +1302,7 @@
     private static class c extends PathfinderGoalNearestAttackableTarget<EntityHuman> {
 
         c(EntityBee entitybee) {
-            Objects.requireNonNull(entitybee);
+            // Objects.requireNonNull(entitybee); // CraftBukkit - decompile error
             super(entitybee, EntityHuman.class, 10, true, false, entitybee::a_);
         }