Retain bonus chest setting on regen world

build.gradle

@@ -27,7 +27,7 @@ repositories {
 configure(apiDependencies) {
     serverApiVersion = '1.21.11-R0.1-SNAPSHOT'
     mockBukkitServerApiVersion = '1.21'
-    mockBukkitVersion = '4.109.0'
+    mockBukkitVersion = '4.110.0'
 }
 
 dependencies {

src/main/java/org/mvplugins/multiverse/core/utils/compatibility/WorldCompatibility.java

@@ -18,10 +18,12 @@ public final class WorldCompatibility {
 
     private static final Try<Method> SAVE_WITH_FLUSH_METHOD;
     private static final boolean HAS_GET_COORDINATE_SCALE_METHOD;
+    private static final boolean HAS_HAS_BONUS_CHEST_METHOD;
 
     static {
         SAVE_WITH_FLUSH_METHOD = ReflectHelper.tryGetMethod(World.class, "save", boolean.class);
         HAS_GET_COORDINATE_SCALE_METHOD = ReflectHelper.hasMethod(World.class, "getCoordinateScale");
+        HAS_HAS_BONUS_CHEST_METHOD = ReflectHelper.hasMethod(World.class, "hasBonusChest");
     }
 
     /**
@@ -65,6 +67,25 @@ public static double getCoordinateScale(World world) {
         };
     }
 
+    /**
+     * Checks if the world has a bonus chest.
+     * <br />
+     * On PaperMC 1.21.5+, this can be obtained directly from the API. On older versions, it always returns false as
+     * bonus chest is not supported.
+     *
+     * @param world The world to check
+     * @return True if the world has a bonus chest, false otherwise
+     *
+     * @since 5.7
+     */
+    @ApiStatus.AvailableSince("5.7")
+    public static boolean hasBonusChest(World world) {
+        if (HAS_HAS_BONUS_CHEST_METHOD) {
+            return world.hasBonusChest();
+        }
+        return false;
+    }
+
     private WorldCompatibility() {
         throw new UnsupportedOperationException("This is a utility class and cannot be instantiated");
     }

src/main/java/org/mvplugins/multiverse/core/world/WorldManager.java

@@ -880,6 +880,7 @@ public Attempt<LoadedMultiverseWorld, RegenFailureReason> regenWorld(@NotNull Re
 
         CreateWorldOptions createWorldOptions = CreateWorldOptions.worldName(world.getName())
                 .biome(world.getBiome())
+                .bonusChest(world.getBukkitWorld().map(WorldCompatibility::hasBonusChest).getOrElse(false))
                 .environment(world.getEnvironment())
                 .generateStructures(world.canGenerateStructures().getOrElse(true))
                 .generator(world.getGenerator())