Paper/patches/server/0820-Make-some-itemstacks-nonnull.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Tue, 15 Mar 2022 01:38:15 -0700
Subject: [PATCH] Make some itemstacks nonnull


diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryPlayer.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryPlayer.java
index d6a228473ca6f425757683a4b17b035a53ab117f..8801d3f7ff6d2ff810f3e34a821dfb659c03f844 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftInventoryPlayer.java
@@ -156,13 +156,13 @@ public class CraftInventoryPlayer extends CraftInventory implements org.bukkit.i
             case OFF_HAND:
                 return this.getItemInOffHand();
             case FEET:
-                return this.getBoots();
+                return java.util.Objects.requireNonNullElseGet(this.getBoots(), () -> new ItemStack(org.bukkit.Material.AIR)); // Paper - make nonnull
             case LEGS:
-                return this.getLeggings();
+                return java.util.Objects.requireNonNullElseGet(this.getLeggings(), () -> new ItemStack(org.bukkit.Material.AIR)); // Paper - make nonnull
             case CHEST:
-                return this.getChestplate();
+                return java.util.Objects.requireNonNullElseGet(this.getChestplate(), () -> new ItemStack(org.bukkit.Material.AIR)); // Paper - make nonnull
             case HEAD:
-                return this.getHelmet();
+                return java.util.Objects.requireNonNullElseGet(this.getHelmet(), () -> new ItemStack(org.bukkit.Material.AIR)); // Paper - make nonnull
             default:
                 throw new IllegalArgumentException("Not implemented. This is a bug");
         }