--- ../src-base/minecraft/net/minecraft/item/ItemMonsterPlacer.java
+++ ../src-work/minecraft/net/minecraft/item/ItemMonsterPlacer.java
@@ -55,7 +55,7 @@
 
     public boolean onItemUse(ItemStack p_77648_1_, EntityPlayer p_77648_2_, World p_77648_3_, int p_77648_4_, int p_77648_5_, int p_77648_6_, int p_77648_7_, float p_77648_8_, float p_77648_9_, float p_77648_10_)
     {
-        if (p_77648_3_.isRemote)
+        if (p_77648_3_.isRemote || p_77648_1_.getItemDamage() == 48 || p_77648_1_.getItemDamage() == 49 || p_77648_1_.getItemDamage() == 63 || p_77648_1_.getItemDamage() == 64)   // CraftBukkit
         {
             return true;
         }
@@ -168,7 +168,7 @@
                     entityliving.rotationYawHead = entityliving.rotationYaw;
                     entityliving.renderYawOffset = entityliving.rotationYaw;
                     entityliving.onSpawnWithEgg((IEntityLivingData)null);
-                    p_77840_0_.spawnEntityInWorld(entity);
+                    p_77840_0_.addEntity(entity, org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.SPAWNER_EGG); // CraftBukkit
                     entityliving.playLivingSound();
                 }
             }