Initial Paper-API for Bukkit 1.13 Preview 4 - THIS IS NOT SERVER

This branch/commit is only useful to those who purely use a clean Bukkit/Spigot/Paper API
and does not use NMS/OBC references.

This will let you start updating your plugin to the latest 1.13 builds of Bukkit Preview (4 as of now)

Note that this release is not final!!! API breakages may occur!

It is up to you if you find use out of this work.

Spigot-API-Patches/ItemStack-getMaxItemUseDuration.patch

@@ -6,7 +6,7 @@ Subject: [PATCH] ItemStack#getMaxItemUseDuration
 Allows you to determine how long it takes to use a usable/consumable item
 
 diff --git a/src/main/java/org/bukkit/inventory/ItemStack.java b/src/main/java/org/bukkit/inventory/ItemStack.java
-index 567706ac..82240129 100644
+index 864b16b1..e9f25924 100644
 --- a/src/main/java/org/bukkit/inventory/ItemStack.java
 +++ b/src/main/java/org/bukkit/inventory/ItemStack.java
 @@ -0,0 +0,0 @@ public class ItemStack implements Cloneable, ConfigurationSerializable {
@@ -15,8 +15,7 @@ index 567706ac..82240129 100644
      }
 +
 +    public int getMaxItemUseDuration() {
-+        Material material = Material.getMaterial(type);
-+        if (material == null || !material.isItem()) {
++        if (type == null || type == Material.AIR || !type.isItem()) {
 +            return 0;
 +        }
 +        // Requires access to NMS