Use createNMSItemStack on CraftingManager recipe registration. Fixes BUKKIT-602

src/main/java/org/bukkit/craftbukkit/inventory/CraftFurnaceRecipe.java

@@ -24,11 +24,7 @@ public class CraftFurnaceRecipe extends FurnaceRecipe implements CraftRecipe {
     }
 
     public void addToCraftingManager() {
-        ItemStack result = this.getResult();
         MaterialData input = this.getInput();
-        int id = result.getTypeId();
-        int amount = result.getAmount();
-        int dmg = result.getDurability();
-        FurnaceRecipes.getInstance().registerRecipe(input.getItemTypeId(), new net.minecraft.server.ItemStack(id, amount, dmg));
+        FurnaceRecipes.getInstance().registerRecipe(input.getItemTypeId(), CraftItemStack.createNMSItemStack(this.getResult()));
     }
 }

src/main/java/org/bukkit/craftbukkit/inventory/CraftShapedRecipe.java

@@ -46,9 +46,6 @@ public class CraftShapedRecipe extends ShapedRecipe implements CraftRecipe {
             data[i] = new net.minecraft.server.ItemStack(id, 1, dmg);
             i++;
         }
-        int id = this.getResult().getTypeId();
-        int amount = this.getResult().getAmount();
-        short durability = this.getResult().getDurability();
-        CraftingManager.getInstance().registerShapedRecipe(new net.minecraft.server.ItemStack(id, amount, durability), data);
+        CraftingManager.getInstance().registerShapedRecipe(CraftItemStack.createNMSItemStack(this.getResult()), data);
     }
 }

src/main/java/org/bukkit/craftbukkit/inventory/CraftShapelessRecipe.java

@@ -34,9 +34,6 @@ public class CraftShapelessRecipe extends ShapelessRecipe implements CraftRecipe
             data[i] = new net.minecraft.server.ItemStack(id, 1, dmg);
             i++;
         }
-        int id = this.getResult().getTypeId();
-        int amount = this.getResult().getAmount();
-        short durability = this.getResult().getDurability();
-        CraftingManager.getInstance().registerShapelessRecipe(new net.minecraft.server.ItemStack(id, amount, durability), data);
+        CraftingManager.getInstance().registerShapelessRecipe(CraftItemStack.createNMSItemStack(this.getResult()), data);
     }
 }