Update to Minecraft 1.15.2

By: md_5 <git@md-5.net>

paper-server/nms-patches/WorldData.patch

@@ -12,15 +12,15 @@
  
  public class WorldData {
  
-@@ -68,6 +73,7 @@
-     private UUID W;
-     private final GameRules X;
-     private final CustomFunctionCallbackTimerQueue<MinecraftServer> Y;
+@@ -70,6 +75,7 @@
+     private boolean Y;
+     private final GameRules Z;
+     private final CustomFunctionCallbackTimerQueue<MinecraftServer> aa;
 +    public WorldServer world; // CraftBukkit
  
      protected WorldData() {
          this.f = WorldType.NORMAL;
-@@ -419,6 +425,7 @@
+@@ -436,6 +442,7 @@
              nbttagcompound.setString("WanderingTraderId", this.W.toString());
          }
  
@@ -28,7 +28,7 @@
      }
  
      public long getSeed() {
-@@ -511,6 +518,20 @@
+@@ -528,6 +535,20 @@
      }
  
      public void setThundering(boolean flag) {
@@ -49,7 +49,7 @@
          this.thundering = flag;
      }
  
-@@ -527,6 +548,20 @@
+@@ -544,6 +565,20 @@
      }
  
      public void setStorm(boolean flag) {
@@ -70,7 +70,7 @@
          this.raining = flag;
      }
  
-@@ -676,6 +711,12 @@
+@@ -693,6 +728,12 @@
  
      public void setDifficulty(EnumDifficulty enumdifficulty) {
          this.F = enumdifficulty;
@@ -83,14 +83,14 @@
      }
  
      public boolean isDifficultyLocked() {
-@@ -780,4 +821,12 @@
-     public void a(UUID uuid) {
-         this.W = uuid;
+@@ -808,4 +849,12 @@
+         this.X.add(s);
+         this.Y |= flag;
      }
 +
 +    // CraftBukkit start - Check if the name stored in NBT is the correct one
-+    public void checkName( String name ) {
-+        if ( !this.levelName.equals( name ) ) {
++    public void checkName(String name) {
++        if (!this.levelName.equals(name)) {
 +            this.levelName = name;
 +        }
 +    }