1.15.2 update (#2887)

Functional GUI fix added by billygalbreath

Spigot-Server-Patches/0101-Optimize-UserCache-Thread-Safe.patch

@@ -1,4 +1,4 @@
-From 01e45083672563157c8546ae0325ad38e8a9caa1 Mon Sep 17 00:00:00 2001
+From 84457c5734836495012f766a1fd8ca4d96081da7 Mon Sep 17 00:00:00 2001
 From: Aikar <aikar@aikar.co>
 Date: Mon, 16 May 2016 20:47:41 -0400
 Subject: [PATCH] Optimize UserCache / Thread Safe
@@ -10,10 +10,10 @@ Additionally, move Saving of the User cache to be done async, incase
 the user never changed the default setting for Spigot's save on stop only.
 
 diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
-index 2a40bb0b8..38bf3ea44 100644
+index f45c65877..bdc98d12c 100644
 --- a/src/main/java/net/minecraft/server/MinecraftServer.java
 +++ b/src/main/java/net/minecraft/server/MinecraftServer.java
-@@ -759,7 +759,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
+@@ -760,7 +760,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
          // Spigot start
          if (org.spigotmc.SpigotConfig.saveUserCacheOnStopOnly) {
              LOGGER.info("Saving usercache.json");
@@ -98,5 +98,5 @@ index 65659996c..d32bec70d 100644
      }
  
 -- 
-2.24.0
+2.25.0.windows.1