From af964c83319d02b4847ea6d5f9fa26e8caa17012 Mon Sep 17 00:00:00 2001
From: Travis Watkins <amaranth@ubuntu.com>
Date: Sun, 31 Mar 2013 13:27:04 -0500
Subject: [PATCH] Limit hopper to valid directions. Fixes BUKKIT-3940

---
 src/main/java/net/minecraft/server/BlockHopper.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/net/minecraft/server/BlockHopper.java b/src/main/java/net/minecraft/server/BlockHopper.java
index 873270211..d1fd0755b 100644
--- a/src/main/java/net/minecraft/server/BlockHopper.java
+++ b/src/main/java/net/minecraft/server/BlockHopper.java
@@ -145,7 +145,7 @@ public class BlockHopper extends BlockContainer {
     }
 
     public static int c(int i) {
-        return i & 7;
+        return Math.min(i & 7, 5); // CraftBukkit - Fix AIOOBE in callers
     }
 
     public static boolean d(int i) {