--- a/net/minecraft/world/entity/monster/warden/Warden.java
+++ b/net/minecraft/world/entity/monster/warden/Warden.java
@@ -372,7 +372,7 @@
 
     @Override
     public BehaviorController<Warden> getBrain() {
-        return super.getBrain();
+        return (BehaviorController<Warden>) super.getBrain(); // CraftBukkit - decompile error
     }
 
     @Override
@@ -409,7 +409,7 @@
     public static void applyDarknessAround(WorldServer worldserver, Vec3D vec3d, @Nullable Entity entity, int i) {
         MobEffect mobeffect = new MobEffect(MobEffects.DARKNESS, 260, 0, false, false);
 
-        MobEffectUtil.addEffectToPlayersAround(worldserver, entity, vec3d, (double) i, mobeffect, 200);
+        MobEffectUtil.addEffectToPlayersAround(worldserver, entity, vec3d, i, mobeffect, 200, org.bukkit.event.entity.EntityPotionEffectEvent.Cause.WARDEN); // CraftBukkit - Add EntityPotionEffectEvent.Cause
     }
 
     @Override