patches/server/0826-Fix-crash-relating-to-bad-recipes-in-furnace-like-ti.patch


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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 d19e799491f790ca967a0731ef95a06993a7ab9a..f40b2582d9087f9dbb5cab950304698f33fdd879 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
@@ -613,6 +613,7 @@ public abstract class AbstractFurnaceBlockEntity extends BaseContainerBlockEntit
             Entry<ResourceLocation> entry = (Entry) objectiterator.next();
 
             worldserver.getRecipeManager().byKey((ResourceLocation) entry.getKey()).ifPresent((recipeholder) -> {
+                if (!(recipeholder.value() instanceof AbstractCookingRecipe)) return; // Paper - don't process non-cooking recipes
                 list.add(recipeholder);
                 AbstractFurnaceBlockEntity.createExperience(worldserver, vec3d, entry.getIntValue(), ((AbstractCookingRecipe) recipeholder.value()).getExperience(), blockposition, entityplayer, itemstack, amount); // CraftBukkit
             });