Paper/patches/server/0051-Ensure-inv-drag-is-in-bounds.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Joseph Hirschfeld <joe@ibj.io>
Date: Thu, 3 Mar 2016 02:33:53 -0600
Subject: [PATCH] Ensure inv drag is in bounds


diff --git a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
index 333cbbf6f7761d619a1e41f9a08d7fcf0abf44f9..66261330157cef50dfabb7f92e9ece6dcd280951 100644
--- a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
@@ -416,7 +416,7 @@ public abstract class AbstractContainerMenu {
                     this.resetQuickCraft();
                 }
             } else if (this.quickcraftStatus == 1) {
-                slot = (Slot) this.slots.get(slotIndex);
+                slot = slotIndex < this.slots.size() ? this.slots.get(slotIndex) : null; // Paper - Ensure drag in bounds
                 itemstack = this.getCarried();
                 if (AbstractContainerMenu.canItemQuickReplace(slot, itemstack, true) && slot.mayPlace(itemstack) && (this.quickcraftType == 2 || itemstack.getCount() > this.quickcraftSlots.size()) && this.canDragTo(slot)) {
                     this.quickcraftSlots.add(slot);