Paper/nms-patches/FurnaceRecipe.patch

--- a/net/minecraft/server/FurnaceRecipe.java
+++ b/net/minecraft/server/FurnaceRecipe.java
@@ -2,6 +2,10 @@
 
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
+import org.bukkit.craftbukkit.inventory.CraftFurnaceRecipe;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+import org.bukkit.craftbukkit.util.CraftNamespacedKey;
+import org.bukkit.inventory.Recipe;
 
 public class FurnaceRecipe implements IRecipe {
 
@@ -56,6 +60,19 @@
         return this.key;
     }
 
+    @Override
+    public Recipe toBukkitRecipe() {
+        CraftItemStack result = CraftItemStack.asCraftMirror(this.result);
+        RecipeItemStack list = this.ingredient;
+        list.buildChoices();
+        net.minecraft.server.ItemStack stack = list.choices[0];
+
+        CraftFurnaceRecipe recipe = new CraftFurnaceRecipe(CraftNamespacedKey.fromMinecraft(this.key), result, CraftItemStack.asCraftMirror(stack), this.experience, this.cookingTime);
+        recipe.setGroup(this.group);
+
+        return recipe;
+    }
+
     public static class a implements RecipeSerializer<FurnaceRecipe> {
 
         public a() {}
@@ -106,11 +123,11 @@
             return "smelting";
         }
 
-        public IRecipe a(MinecraftKey minecraftkey, PacketDataSerializer packetdataserializer) {
+        public FurnaceRecipe a(MinecraftKey minecraftkey, PacketDataSerializer packetdataserializer) { // CraftBukkit - decompile error
             return this.b(minecraftkey, packetdataserializer);
         }
 
-        public IRecipe a(MinecraftKey minecraftkey, JsonObject jsonobject) {
+        public FurnaceRecipe a(MinecraftKey minecraftkey, JsonObject jsonobject) { // CraftBukkit - decompile error
             return this.b(minecraftkey, jsonobject);
         }
     }