From f0635a630823c63d00fc43a9acf99936959670fc Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 5 Jun 2018 23:00:29 -0400
Subject: [PATCH] ItemStack#getMaxItemUseDuration

Allows you to determine how long it takes to use a usable/consumable item

diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java
index f6b802dc8..6521bb508 100644
--- a/src/main/java/net/minecraft/server/ItemStack.java
+++ b/src/main/java/net/minecraft/server/ItemStack.java
@@ -561,6 +561,7 @@ public final class ItemStack {
         this.getItem().b(this, world, entityhuman);
     }
 
+    public int getItemUseMaxDuration() { return m(); } // Paper - OBFHELPER
     public int m() {
         return this.getItem().e(this);
     }
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
index aa99254ff..be6589dbf 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -180,6 +180,13 @@ public final class CraftItemStack extends ItemStack {
         return (handle == null) ? Material.AIR.getMaxStackSize() : handle.getItem().getMaxStackSize();
     }
 
+    // Paper start
+    @Override
+    public int getMaxItemUseDuration() {
+        return handle == null ? 0 : handle.getItemUseMaxDuration();
+    }
+    // Paper end
+
     @Override
     public void addUnsafeEnchantment(Enchantment ench, int level) {
         Validate.notNull(ench, "Cannot add null enchantment");
-- 
2.18.0