Paper/patches/server/0855-Fix-crash-relating-to-bad-recipes-in-furnace-like-ti.patch
Owen 89d51d5f29
Allow enabling sand duping (#10191)
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable.

It should be noted that this decision does not promise all future exploits will be configurable.
2024-03-03 17:05:34 -05:00

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1.4 KiB
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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 d7beeac4a8e4a16221809663a5aa03389a759742..d04fc84eef11adb5ea64077f48794b6ed7fb3ada 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
@@ -643,6 +643,7 @@ 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
});