Paper/nms-patches/PlayerChunk.patch

--- a/net/minecraft/server/PlayerChunk.java
+++ b/net/minecraft/server/PlayerChunk.java
@@ -43,7 +43,7 @@
         this.fullChunkFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE;
         this.tickingFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE;
         this.entityTickingFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE;
-        this.chunkSave = CompletableFuture.completedFuture((Object) null);
+        this.chunkSave = CompletableFuture.completedFuture(null); // CraftBukkit - decompile error
         this.dirtyBlocks = new short[64];
         this.location = chunkcoordintpair;
         this.lightEngine = lightengine;
@@ -76,9 +76,9 @@
     @Nullable
     public Chunk getChunk() {
         CompletableFuture<Either<Chunk, PlayerChunk.Failure>> completablefuture = this.a();
-        Either<Chunk, PlayerChunk.Failure> either = (Either) completablefuture.getNow((Object) null);
+        Either<Chunk, PlayerChunk.Failure> either = (Either) completablefuture.getNow(null); // CraftBukkit - decompile error
 
-        return either == null ? null : (Chunk) either.left().orElse((Object) null);
+        return either == null ? null : (Chunk) either.left().orElse(null); // CraftBukkit - decompile error
     }
 
     public CompletableFuture<IChunkAccess> getChunkSave() {
@@ -201,7 +201,7 @@
         CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> completablefuture = (CompletableFuture) this.statusFutures.get(i);
 
         if (completablefuture != null) {
-            Either<IChunkAccess, PlayerChunk.Failure> either = (Either) completablefuture.getNow((Object) null);
+            Either<IChunkAccess, PlayerChunk.Failure> either = (Either) completablefuture.getNow(null); // CraftBukkit - decompile error
 
             if (either == null || either.left().isPresent()) {
                 return completablefuture;
@@ -213,6 +213,15 @@
 
             this.a(completablefuture1);
             this.statusFutures.set(i, completablefuture1);
+            // CraftBukkit start
+            if (chunkstatus == ChunkStatus.FULL) {
+                completablefuture1.thenAccept((either) -> {
+                    Chunk chunk = (Chunk) either.left().get();
+
+                    chunk.loadCallback();
+                });
+            }
+            // CraftBukkit end
             return completablefuture1;
         } else {
             return completablefuture == null ? PlayerChunk.UNLOADED_CHUNK_ACCESS_FUTURE : completablefuture;
@@ -294,7 +303,7 @@
         if (flag2 && !flag3) {
             completablefuture = this.fullChunkFuture;
             this.fullChunkFuture = PlayerChunk.UNLOADED_CHUNK_FUTURE;
-            this.a(completablefuture.thenApply((either1) -> {
+            this.a(((CompletableFuture<Either<Chunk, PlayerChunk.Failure>>) completablefuture).thenApply((either1) -> { // CraftBukkit - decompile error
                 playerchunkmap.getClass();
                 return either1.ifLeft(playerchunkmap::a);
             }));