From 43a2693ca0f88d2ff06144f701082c1bb9b05886 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 16 Jun 2018 16:30:29 -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.
---
 ...ecipes-in-RecipeBook-to-avoid-data-e.patch | 41 +++++++++++++++++++
 scripts/importmcdev.sh                        |  1 +
 2 files changed, 42 insertions(+)
 create mode 100644 Spigot-Server-Patches/Ignore-Missing-Recipes-in-RecipeBook-to-avoid-data-e.patch

diff --git a/Spigot-Server-Patches/Ignore-Missing-Recipes-in-RecipeBook-to-avoid-data-e.patch b/Spigot-Server-Patches/Ignore-Missing-Recipes-in-RecipeBook-to-avoid-data-e.patch
new file mode 100644
index 0000000000..c8133b8a56
--- /dev/null
+++ b/Spigot-Server-Patches/Ignore-Missing-Recipes-in-RecipeBook-to-avoid-data-e.patch
@@ -0,0 +1,41 @@
+From 0000000000000000000000000000000000000000 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..c7b947d2f 100644
+--- a/src/main/java/net/minecraft/server/RecipeBookServer.java
++++ b/src/main/java/net/minecraft/server/RecipeBookServer.java
+@@ -0,0 +0,0 @@ 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);
+@@ -0,0 +0,0 @@ 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;
++            nbttaglist.add(new NBTTagString(key.toString()));
++            // Paper end
+         }
+ 
+         nbttagcompound.set("toBeDisplayed", nbttaglist1);
+--
\ No newline at end of file
diff --git a/scripts/importmcdev.sh b/scripts/importmcdev.sh
index 3094773bbf..089e2cdedb 100755
--- a/scripts/importmcdev.sh
+++ b/scripts/importmcdev.sh
@@ -101,6 +101,7 @@ import PlayerConnectionUtils
 import RegionFile
 import RegistryBlockID
 import RemoteControlListener
+import RecipeBookServer
 import ServerPing
 import StructureBoundingBox
 import StructurePiece