From c2bddc30c43873a5654f2ef03a4535347e32eb1b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Salom=C3=A3o?= <salomaoo@gmail.com>
Date: Wed, 26 May 2021 16:09:40 -0300
Subject: [PATCH] fix NPE transfering recipes without an actual output

---
 src/main/java/appeng/core/sync/packets/PacketJEIRecipe.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/main/java/appeng/core/sync/packets/PacketJEIRecipe.java b/src/main/java/appeng/core/sync/packets/PacketJEIRecipe.java
index 3c0f97c3c..a98fa5079 100644
--- a/src/main/java/appeng/core/sync/packets/PacketJEIRecipe.java
+++ b/src/main/java/appeng/core/sync/packets/PacketJEIRecipe.java
@@ -285,6 +285,7 @@ public class PacketJEIRecipe extends AppEngPacket
 				IItemHandler outputSlots = cct.getInventoryByName( "output" );
 				for( int i = 0; i < this.output.length; ++i )
 				{
+					if( this.output[i] == null ) continue;
 					ItemHandlerUtil.setStackInSlot( outputSlots, i, this.output[i] );
 				}
 			}