--- ../src-base/minecraft/net/minecraft/tileentity/TileEntityLockable.java
+++ ../src-work/minecraft/net/minecraft/tileentity/TileEntityLockable.java
@@ -48,4 +48,27 @@
     {
         return (ITextComponent)(this.func_145818_k_() ? new TextComponentString(this.func_70005_c_()) : new TextComponentTranslation(this.func_70005_c_(), new Object[0]));
     }
+
+    private net.minecraftforge.items.IItemHandler itemHandler;
+
+    protected net.minecraftforge.items.IItemHandler createUnSidedHandler()
+    {
+        return new net.minecraftforge.items.wrapper.InvWrapper(this);
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    @javax.annotation.Nullable
+    public <T> T getCapability(net.minecraftforge.common.capabilities.Capability<T> capability, @javax.annotation.Nullable net.minecraft.util.EnumFacing facing)
+    {
+        if (capability == net.minecraftforge.items.CapabilityItemHandler.ITEM_HANDLER_CAPABILITY)
+            return (T) (itemHandler == null ? (itemHandler = createUnSidedHandler()) : itemHandler);
+        return super.getCapability(capability, facing);
+    }
+
+    @Override
+    public boolean hasCapability(net.minecraftforge.common.capabilities.Capability<?> capability, @javax.annotation.Nullable net.minecraft.util.EnumFacing facing)
+    {
+        return capability == net.minecraftforge.items.CapabilityItemHandler.ITEM_HANDLER_CAPABILITY || super.hasCapability(capability, facing);
+    }
 }