From b76c55a80208714a87f7d5d644820838ce69657b Mon Sep 17 00:00:00 2001
From: CraftBukkit/Spigot <noreply+git-craftbukkit@papermc.io>
Date: Thu, 27 Feb 2014 12:32:21 +0000
Subject: [PATCH] Check that item in hand is not null after book event. Fixes
 BUKKIT-5443

By: Des Herriott <des.herriott@gmail.com>
---
 .../java/org/bukkit/craftbukkit/event/CraftEventFactory.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/paper-server/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/paper-server/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 4cc25f2c5f..30f31d1fc4 100644
--- a/paper-server/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/paper-server/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -709,7 +709,7 @@ public class CraftEventFactory {
         ItemStack itemInHand = player.inventory.getItem(itemInHandIndex);
 
         // If they've got the same item in their hand, it'll need to be updated.
-        if (itemInHand.getItem() == Items.BOOK_AND_QUILL) {
+        if (itemInHand != null && itemInHand.getItem() == Items.BOOK_AND_QUILL) {
             if (!editBookEvent.isCancelled()) {
                 CraftItemStack.setItemMeta(itemInHand, editBookEvent.getNewBookMeta());
                 if (editBookEvent.isSigning()) {