Paper/Spigot-Server-Patches/0312-Ignore-Missing-Recipes-in-RecipeBook-to-avoid-data-e.patch

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From 34db39b1a0906f9fce82f2970d924b95289a4bc7 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 16 Jun 2018 16:23:38 -0400
Subject: [PATCH] Ignore Missing Recipes in RecipeBook to avoid data errors
This code was causing NPE's in saving player data, potentially related to reloads.
diff --git a/src/main/java/net/minecraft/server/RecipeBookServer.java b/src/main/java/net/minecraft/server/RecipeBookServer.java
index 7eecdc9da..f65e74ebd 100644
--- a/src/main/java/net/minecraft/server/RecipeBookServer.java
+++ b/src/main/java/net/minecraft/server/RecipeBookServer.java
@@ -63,7 +63,11 @@ public class RecipeBookServer extends RecipeBook {
while (iterator.hasNext()) {
IRecipe irecipe = (IRecipe) iterator.next();
- nbttaglist.add(new NBTTagString(((MinecraftKey) CraftingManager.recipes.b(irecipe)).toString()));
+ // Paper start - ignore missing recipes
+ MinecraftKey key = CraftingManager.recipes.b(irecipe);
+ if (key == null) continue;
+ nbttaglist.add(new NBTTagString(key.toString()));
+ // Paper end
}
nbttagcompound.set("recipes", nbttaglist);
@@ -71,9 +75,13 @@ public class RecipeBookServer extends RecipeBook {
Iterator iterator1 = this.e().iterator();
while (iterator1.hasNext()) {
- IRecipe irecipe1 = (IRecipe) iterator1.next();
+ // Paper start - ignore missing recipes
+ IRecipe irecipe = (IRecipe) iterator1.next();
- nbttaglist1.add(new NBTTagString(((MinecraftKey) CraftingManager.recipes.b(irecipe1)).toString()));
+ MinecraftKey key = CraftingManager.recipes.b(irecipe);
+ if (key == null) continue;
+ nbttaglist1.add(new NBTTagString(key.toString()));
+ // Paper end
}
nbttagcompound.set("toBeDisplayed", nbttaglist1);
--
2.18.0