Paper/nms-patches/RecipiesShield.patch

--- a/net/minecraft/server/RecipiesShield.java
+++ b/net/minecraft/server/RecipiesShield.java
@@ -1,8 +1,15 @@
 package net.minecraft.server;
 
-public class RecipiesShield {    public static class Decoration extends IRecipe {
+// CraftBukkit - decompile weirdness
+public class RecipiesShield {
 
-        public Decoration() {}
+    public static class Decoration extends ShapelessRecipes { // CraftBukkit
+
+        // CraftBukkit start - Delegate to new parent class with bogus info
+        public Decoration() {
+            super("", new ItemStack(Items.SHIELD, 0, 0), NonNullList.a(RecipeItemStack.a, RecipeItemStack.a(Items.BANNER)));
+        }
+        // CraftBukkit end
 
         public boolean a(InventoryCrafting inventorycrafting, World world) {
             ItemStack itemstack = ItemStack.a;