Paper/nms-patches/RecipeMapClone.patch

--- a/net/minecraft/server/RecipeMapClone.java
+++ b/net/minecraft/server/RecipeMapClone.java
@@ -2,9 +2,13 @@
 
 import javax.annotation.Nullable;
 
-public class RecipeMapClone implements IRecipe {
+public class RecipeMapClone extends ShapelessRecipes implements IRecipe { // CraftBukkit - added extends
 
-    public RecipeMapClone() {}
+    // CraftBukkit start - Delegate to new parent class
+    public RecipeMapClone() {
+        super(new ItemStack(Items.MAP, 0, -1), java.util.Arrays.asList(new ItemStack(Items.MAP, 0, 0)));
+    }
+    // CraftBukkit end
 
     public boolean a(InventoryCrafting inventorycrafting, World world) {
         int i = 0;