SPIGOT-5225: World handle isn't closed if world is unloaded without saving

nms-patches/ChunkProviderServer.patch

@@ -50,7 +50,21 @@
      }
  
      public boolean isLoaded(int i, int j) {
-@@ -294,6 +302,18 @@
+@@ -289,11 +297,31 @@
+ 
+     @Override
+     public void close() throws IOException {
+-        this.save(true);
++        // CraftBukkit start
++        close(true);
++    }
++
++    public void close(boolean save) throws IOException {
++        if (save) {
++            this.save(true);
++        }
++        // CraftBukkit end
+         this.lightEngine.close();
          this.playerChunkMap.close();
      }
  
@@ -69,7 +83,7 @@
      public void tick(BooleanSupplier booleansupplier) {
          this.world.getMethodProfiler().enter("purge");
          this.chunkMapDistance.purgeTickets();
-@@ -313,13 +333,13 @@
+@@ -313,13 +341,13 @@
          this.lastTickTime = i;
          WorldData worlddata = this.world.getWorldData();
          boolean flag = worlddata.getType() == WorldType.DEBUG_ALL_BLOCK_STATES;
@@ -85,7 +99,7 @@
  
              this.world.getMethodProfiler().enter("naturalSpawnCount");
              int l = this.chunkMapDistance.b();
-@@ -348,8 +368,30 @@
+@@ -348,8 +376,30 @@
                              for (int j1 = 0; j1 < i1; ++j1) {
                                  EnumCreatureType enumcreaturetype = aenumcreaturetype1[j1];
  
@@ -117,7 +131,7 @@
  
                                      if (object2intmap.getInt(enumcreaturetype) <= k1) {
                                          SpawnerCreature.a(enumcreaturetype, (World) this.world, chunk, blockposition);
-@@ -497,12 +539,18 @@
+@@ -497,12 +547,18 @@
  
          @Override
          protected boolean executeNext() {

src/main/java/org/bukkit/craftbukkit/CraftServer.java

@@ -981,13 +981,14 @@ public final class CraftServer implements Server {
             return false;
         }
 
-        if (save) {
-            try {
+        try {
+            if (save) {
                 handle.save(null, true, true);
-                handle.close();
-            } catch (Exception ex) {
-                getLogger().log(Level.SEVERE, null, ex);
             }
+
+            handle.getChunkProvider().close(save);
+        } catch (Exception ex) {
+            getLogger().log(Level.SEVERE, null, ex);
         }
 
         worlds.remove(world.getName().toLowerCase(java.util.Locale.ENGLISH));