Revert to Java 15

patches/api/0002-Create-interfaces-for-getting-UUIDs-and-Players.patch

@@ -911,7 +911,7 @@ index 9013d043503d175004ad276799e5935b7fa59dc4..9a6e1ebd46d580addf532786842ea64f
      private boolean cancelled;
  
 diff --git a/src/main/java/org/bukkit/event/player/AsyncPlayerPreLoginEvent.java b/src/main/java/org/bukkit/event/player/AsyncPlayerPreLoginEvent.java
-index 77aefda5aac4602bf5bf71c29600e7450defdd4e..e1275a902986ea82187f491503032d60b8c2c784 100644
+index c9af02b0f62b3d18da1e91d1ea02ce0864fc60b9..35e8c680309f0a67e941b749240f902be07c22e6 100644
 --- a/src/main/java/org/bukkit/event/player/AsyncPlayerPreLoginEvent.java
 +++ b/src/main/java/org/bukkit/event/player/AsyncPlayerPreLoginEvent.java
 @@ -4,6 +4,7 @@ import java.net.InetAddress;

patches/api/0006-Update-to-Java-16.patch

@@ -1,30 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: lexikiq <noellekiq@gmail.com>
-Date: Thu, 13 May 2021 21:24:52 -0400
-Subject: [PATCH] Update to Java 16
-
-
-diff --git a/pom.xml b/pom.xml
-index ed910c6c7851dc4c4d2c540c0cb6285ae4e4be46..893c4d14debae398cab2ce4f5a2e420bbdf5d54b 100644
---- a/pom.xml
-+++ b/pom.xml
-@@ -20,8 +20,8 @@
-     <properties>
-         <!-- <skipTests>true</skipTests> Paper - This [was] not going to end well -->
-         <!-- Parchment start -->
--        <maven.compiler.source>15</maven.compiler.source>
--        <maven.compiler.target>15</maven.compiler.target>
-+        <maven.compiler.source>16</maven.compiler.source>
-+        <maven.compiler.target>16</maven.compiler.target>
-         <!-- Parchment end -->
-         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-         <adventure.version>4.7.0</adventure.version> <!-- Paper - When updating this make sure to update the linked JavaDocs on the homepage as well! -->
-@@ -225,7 +225,7 @@
-             <plugin>
-                 <groupId>org.apache.maven.plugins</groupId>
-                 <artifactId>maven-shade-plugin</artifactId>
--                <version>3.2.3</version>
-+                <version>3.3.0-SNAPSHOT</version>
-                 <executions>
-                     <execution>
-                         <phase>package</phase>