From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 19 Mar 2023 20:36:22 -0700
Subject: [PATCH] Fix crash relating to bad recipes in furnace-like tile
 entities


diff --git a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
index 2a786c9fd29dc2139cf487fa645cd43345d60167..a3f073066f6e2eea8964461ad2b0409ade202f35 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/AbstractFurnaceBlockEntity.java
@@ -632,6 +632,7 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
             Entry<ResourceLocation> entry = (Entry) objectiterator.next();
 
             worldserver.getRecipeManager().byKey((ResourceLocation) entry.getKey()).ifPresent((irecipe) -> {
+                if (!(irecipe instanceof AbstractCookingRecipe)) return; // Paper - don't process non-cooking recipes
                 list.add(irecipe);
                 AbstractFurnaceBlockEntity.createExperience(worldserver, vec3d, entry.getIntValue(), ((AbstractCookingRecipe) irecipe).getExperience(), blockposition, entityplayer, itemstack, amount); // CraftBukkit
             });