[Bleeding] DoubleChestInventory.getHolder() no longer returns null. Addresses BUKKIT-995

src/main/java/net/minecraft/server/InventoryLargeChest.java

@@ -43,7 +43,7 @@ public class InventoryLargeChest implements IInventory {
     }
 
     public InventoryHolder getOwner() {
-        return null; // Double chests technically have multiple owners, so there's no sensible way to pick one
+        return null; // This method won't be called since CraftInventoryDoubleChest doesn't defer to here
     }
     // CraftBukkit end
 

src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryDoubleChest.java

@@ -1,5 +1,6 @@
 package org.bukkit.craftbukkit.inventory;
 
+import org.bukkit.block.DoubleChest;
 import org.bukkit.inventory.DoubleChestInventory;
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
@@ -50,4 +51,9 @@ public class CraftInventoryDoubleChest extends CraftInventory implements DoubleC
             right.setContents(rightItems);
         }
     }
+
+    @Override
+    public DoubleChest getHolder() {
+        return new DoubleChest(this);
+    }
 }