From 2690f583157b96e78be8715cb9bcabfa24f5b485 Mon Sep 17 00:00:00 2001
From: thraaawn <david.hilberath@gmx.de>
Date: Sun, 19 Jun 2016 11:35:53 +0200
Subject: [PATCH] Fixed grid searching controller over null blocks

When placing a cable above a door and triggering a searchController
call from a connected grid (e.g. by loading the chunk), then onConnected
would try to notify neighbors of a state change with block set to null.
This caused a NPE down the line.
---
 src/main/java/refinedstorage/tile/TileMachine.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/refinedstorage/tile/TileMachine.java b/src/main/java/refinedstorage/tile/TileMachine.java
index 8ffe779f1..1d539697f 100755
--- a/src/main/java/refinedstorage/tile/TileMachine.java
+++ b/src/main/java/refinedstorage/tile/TileMachine.java
@@ -81,7 +81,7 @@ public abstract class TileMachine extends TileBase implements ISynchronizedConta
     }
 
     public void onConnected(World world, TileController controller) {
-        if (tryConnect(controller)) {
+        if (tryConnect(controller) && block != null) {
             world.notifyNeighborsOfStateChange(pos, block);
         }
     }