Update to Minecraft 1.12-pre2

By: md_5 <git@md-5.net>

paper-server/nms-patches/ShapelessRecipes.patch

@@ -1,19 +1,24 @@
 --- a/net/minecraft/server/ShapelessRecipes.java
 +++ b/net/minecraft/server/ShapelessRecipes.java
-@@ -5,6 +5,11 @@
+@@ -5,11 +5,16 @@
+ import com.google.gson.JsonObject;
+ import java.util.ArrayList;
  import java.util.Iterator;
- import java.util.List;
- 
 +// CraftBukkit start
 +import org.bukkit.craftbukkit.inventory.CraftItemStack;
 +import org.bukkit.craftbukkit.inventory.CraftShapelessRecipe;
 +// CraftBukkit end
-+
- public class ShapelessRecipes implements IRecipe {
+ 
+ public class ShapelessRecipes extends IRecipe {
  
      private final ItemStack result;
-@@ -15,6 +20,20 @@
-         this.ingredients = list;
+     private final NonNullList<RecipeItemStack> ingredients;
++    public MinecraftKey key; // CraftBukkit
+ 
+     public ShapelessRecipes(String s, ItemStack itemstack, NonNullList<RecipeItemStack> nonnulllist) {
+         super(s);
+@@ -17,6 +22,21 @@
+         this.ingredients = nonnulllist;
      }
  
 +    // CraftBukkit start
@@ -21,8 +26,9 @@
 +    public org.bukkit.inventory.ShapelessRecipe toBukkitRecipe() {
 +        CraftItemStack result = CraftItemStack.asCraftMirror(this.result);
 +        CraftShapelessRecipe recipe = new CraftShapelessRecipe(result, this);
-+        for (ItemStack stack : (List<ItemStack>) this.ingredients) {
-+            if (stack != null) {
++        for (RecipeItemStack list : this.ingredients) {
++            if (list != null) {
++                net.minecraft.server.ItemStack stack = list.choices[0];
 +                recipe.addIngredient(org.bukkit.craftbukkit.util.CraftMagicNumbers.getMaterial(stack.getItem()), stack.getData());
 +            }
 +        }