Paper/nms-patches/Containers.patch

--- a/net/minecraft/server/Containers.java
+++ b/net/minecraft/server/Containers.java
@@ -19,7 +19,7 @@
     public static final Containers<ContainerGrindstone> GRINDSTONE = a("grindstone", ContainerGrindstone::new);
     public static final Containers<ContainerHopper> HOPPER = a("hopper", ContainerHopper::new);
     public static final Containers<ContainerLectern> LECTERN = a("lectern", (i, playerinventory) -> {
-        return new ContainerLectern(i);
+        return new ContainerLectern(i, playerinventory); // CraftBukkit
     });
     public static final Containers<ContainerLoom> LOOM = a("loom", ContainerLoom::new);
     public static final Containers<ContainerMerchant> MERCHANT = a("merchant", ContainerMerchant::new);
@@ -31,12 +31,17 @@
     private final Containers.Supplier<T> y;
 
     private static <T extends Container> Containers<T> a(String s, Containers.Supplier<T> containers_supplier) {
-        return (Containers) IRegistry.a(IRegistry.MENU, s, (Object) (new Containers<>(containers_supplier)));
+        return (Containers) IRegistry.a(IRegistry.MENU, s, (new Containers<>(containers_supplier))); // CraftBukkit - decompile error
     }
 
     private Containers(Containers.Supplier<T> containers_supplier) {
         this.y = containers_supplier;
     }
 
-    interface Supplier<T extends Container> {}
+    // CraftBukkit start
+    interface Supplier<T extends Container> {
+
+        T supply(int id, PlayerInventory playerinventory);
+    }
+    // CraftBukkit end
 }