craftbukkit/nms-patches/net/minecraft/world/inventory/CrafterMenu.patch

--- a/net/minecraft/world/inventory/CrafterMenu.java
+++ b/net/minecraft/world/inventory/CrafterMenu.java
@@ -10,8 +10,27 @@
 import net.minecraft.world.level.World;
 import net.minecraft.world.level.block.CrafterBlock;
 
+// CraftBukkit start
+import org.bukkit.craftbukkit.inventory.CraftInventoryCrafter;
+import org.bukkit.craftbukkit.inventory.view.CraftCrafterView;
+// CraftBukkit end
+
 public class CrafterMenu extends Container implements ICrafting {
 
+    // CraftBukkit start
+    private CraftCrafterView bukkitEntity = null;
+
+    @Override
+    public CraftCrafterView getBukkitView() {
+        if (bukkitEntity != null) {
+            return bukkitEntity;
+        }
+
+        CraftInventoryCrafter inventory = new CraftInventoryCrafter(this.container, this.resultContainer);
+        bukkitEntity = new CraftCrafterView(this.player.getBukkitEntity(), inventory, this);
+        return bukkitEntity;
+    }
+    // CraftBukkit end
     protected static final int SLOT_COUNT = 9;
     private static final int INV_SLOT_START = 9;
     private static final int INV_SLOT_END = 36;
@@ -118,6 +137,7 @@
 
     @Override
     public boolean stillValid(EntityHuman entityhuman) {
+        if (!this.checkReachable) return true; // CraftBukkit
         return this.container.stillValid(entityhuman);
     }