--- a/net/minecraft/server/dedicated/DedicatedServerProperties.java
+++ b/net/minecraft/server/dedicated/DedicatedServerProperties.java
@@ -43,11 +43,16 @@
 import net.minecraft.world.level.levelgen.presets.WorldPresets;
 import org.slf4j.Logger;
 
+// CraftBukkit start
+import joptsimple.OptionSet;
+// CraftBukkit end
+
 public class DedicatedServerProperties extends PropertyManager<DedicatedServerProperties> {
 
     static final Logger LOGGER = LogUtils.getLogger();
     private static final Pattern SHA1 = Pattern.compile("^[a-fA-F0-9]{40}$");
     private static final Splitter COMMA_SPLITTER = Splitter.on(',').trimResults();
+    public final boolean debug = this.get("debug", false); // CraftBukkit
     public final boolean onlineMode = this.get("online-mode", true);
     public final boolean preventProxyConnections = this.get("prevent-proxy-connections", false);
     public final String serverIp = this.get("server-ip", "");
@@ -104,8 +109,10 @@
     public final WorldOptions worldOptions;
     public boolean acceptsTransfers;
 
-    public DedicatedServerProperties(Properties properties) {
-        super(properties);
+    // CraftBukkit start
+    public DedicatedServerProperties(Properties properties, OptionSet optionset) {
+        super(properties, optionset);
+        // CraftBukkit end
         this.difficulty = (EnumDifficulty) this.get("difficulty", dispatchNumberOrString(EnumDifficulty::byId, EnumDifficulty::byName), EnumDifficulty::getKey, EnumDifficulty.EASY);
         this.gamemode = (EnumGamemode) this.get("gamemode", dispatchNumberOrString(EnumGamemode::byId, EnumGamemode::byName), EnumGamemode::getName, EnumGamemode.SURVIVAL);
         this.levelName = this.get("level-name", "world");
@@ -164,13 +171,15 @@
         this.initialDataPackConfiguration = getDatapackConfig(this.get("initial-enabled-packs", String.join(",", WorldDataConfiguration.DEFAULT.dataPacks().getEnabled())), this.get("initial-disabled-packs", String.join(",", WorldDataConfiguration.DEFAULT.dataPacks().getDisabled())));
     }
 
-    public static DedicatedServerProperties fromFile(Path path) {
-        return new DedicatedServerProperties(loadFromFile(path));
+    // CraftBukkit start
+    public static DedicatedServerProperties fromFile(Path path, OptionSet optionset) {
+        return new DedicatedServerProperties(loadFromFile(path), optionset);
     }
 
     @Override
-    protected DedicatedServerProperties reload(IRegistryCustom iregistrycustom, Properties properties) {
-        return new DedicatedServerProperties(properties);
+    protected DedicatedServerProperties reload(IRegistryCustom iregistrycustom, Properties properties, OptionSet optionset) {
+        return new DedicatedServerProperties(properties, optionset);
+        // CraftBukkit end
     }
 
     @Nullable
@@ -251,10 +260,10 @@
             }).orElseThrow(() -> {
                 return new IllegalStateException("Invalid datapack contents: can't find default preset");
             });
-            Optional optional = Optional.ofNullable(MinecraftKey.tryParse(this.levelType)).map((minecraftkey) -> {
+            Optional<ResourceKey<WorldPreset>> optional = Optional.ofNullable(MinecraftKey.tryParse(this.levelType)).map((minecraftkey) -> { // CraftBukkit - decompile error
                 return ResourceKey.create(Registries.WORLD_PRESET, minecraftkey);
             }).or(() -> {
-                return Optional.ofNullable((ResourceKey) DedicatedServerProperties.WorldDimensionData.LEGACY_PRESET_NAMES.get(this.levelType));
+                return Optional.ofNullable(DedicatedServerProperties.WorldDimensionData.LEGACY_PRESET_NAMES.get(this.levelType)); // CraftBukkit - decompile error
             });
 
             Objects.requireNonNull(iregistry);
@@ -266,7 +275,7 @@
 
             if (holder.is(WorldPresets.FLAT)) {
                 RegistryOps<JsonElement> registryops = iregistrycustom.createSerializationContext(JsonOps.INSTANCE);
-                DataResult dataresult = GeneratorSettingsFlat.CODEC.parse(new Dynamic(registryops, this.generatorSettings()));
+                DataResult<GeneratorSettingsFlat> dataresult = GeneratorSettingsFlat.CODEC.parse(new Dynamic(registryops, this.generatorSettings())); // CraftBukkit - decompile error
                 Logger logger = DedicatedServerProperties.LOGGER;
 
                 Objects.requireNonNull(logger);