From bacc5548322849981e1b31b78da60cc30bbeed46 Mon Sep 17 00:00:00 2001
From: JP Sugarbroad <taral@taral.net>
Date: Sat, 8 Sep 2012 09:53:10 -0700
Subject: [PATCH] Check for nulls in stacks returned from extractItem.

---
 common/buildcraft/transport/pipes/PipeItemsWood.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common/buildcraft/transport/pipes/PipeItemsWood.java b/common/buildcraft/transport/pipes/PipeItemsWood.java
index 5a6faf7f..184e3d51 100644
--- a/common/buildcraft/transport/pipes/PipeItemsWood.java
+++ b/common/buildcraft/transport/pipes/PipeItemsWood.java
@@ -131,7 +131,9 @@ public class PipeItemsWood extends Pipe implements IPowerReceptor {
 			ItemStack[] stacks = ((ISpecialInventory) inventory).extractItem(doRemove, from, (int)powerProvider.getEnergyStored());
 			if (stacks != null && doRemove) {
 				for (ItemStack stack : stacks) {
-					powerProvider.useEnergy(stack.stackSize, stack.stackSize, true);
+					if (stack != null) {
+						powerProvider.useEnergy(stack.stackSize, stack.stackSize, true);
+					}
 				}
 			}
 			return stacks;