PaperMC/nms-patches/ShapelessRecipes.patch

--- a/net/minecraft/server/ShapelessRecipes.java
+++ b/net/minecraft/server/ShapelessRecipes.java
@@ -5,6 +5,13 @@
 import com.google.gson.JsonParseException;
 import it.unimi.dsi.fastutil.ints.IntList;
 import java.util.Iterator;
+// CraftBukkit start
+import java.util.ArrayList;
+import java.util.List;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.inventory.CraftShapelessRecipe;
+import org.bukkit.craftbukkit.util.CraftMagicNumbers;
+// CraftBukkit end
 
 public class ShapelessRecipes implements IRecipe {
 
@@ -20,6 +27,26 @@
         this.ingredients = nonnulllist;
     }
 
+    // CraftBukkit start
+    @SuppressWarnings("unchecked")
+    public org.bukkit.inventory.ShapelessRecipe toBukkitRecipe() {
+        CraftItemStack result = CraftItemStack.asCraftMirror(this.result);
+        CraftShapelessRecipe recipe = new CraftShapelessRecipe(result, this);
+        recipe.setGroup(this.group);
+
+        for (RecipeItemStack list : this.ingredients) {
+            list.buildChoices();
+
+            List<org.bukkit.Material> choices = new ArrayList<>(list.choices.length);
+            for (ItemStack i : list.choices) {
+                choices.add(CraftMagicNumbers.getMaterial(i.getItem()));
+            }
+            recipe.addIngredient(new org.bukkit.inventory.RecipeChoice.MaterialChoice(choices));
+        }
+        return recipe;
+    }
+    // CraftBukkit end
+
     public MinecraftKey getKey() {
         return this.key;
     }