diff --git a/src/main/java/emu/grasscutter/Grasscutter.java b/src/main/java/emu/grasscutter/Grasscutter.java
index 7c8df92f3..2f1a737ce 100644
--- a/src/main/java/emu/grasscutter/Grasscutter.java
+++ b/src/main/java/emu/grasscutter/Grasscutter.java
@@ -1,60 +1,37 @@
 package emu.grasscutter;
 
-import static emu.grasscutter.config.Configuration.SERVER;
-import static emu.grasscutter.utils.lang.Language.translate;
-
-import ch.qos.logback.classic.Level;
-import ch.qos.logback.classic.Logger;
-import emu.grasscutter.auth.AuthenticationSystem;
-import emu.grasscutter.auth.DefaultAuthentication;
-import emu.grasscutter.command.CommandMap;
-import emu.grasscutter.command.DefaultPermissionHandler;
-import emu.grasscutter.command.PermissionHandler;
+import ch.qos.logback.classic.*;
+import emu.grasscutter.auth.*;
+import emu.grasscutter.command.*;
 import emu.grasscutter.config.ConfigContainer;
 import emu.grasscutter.data.ResourceLoader;
 import emu.grasscutter.database.DatabaseManager;
 import emu.grasscutter.plugin.PluginManager;
 import emu.grasscutter.plugin.api.ServerHelper;
-import emu.grasscutter.plugin.api.ServerHook;
 import emu.grasscutter.server.dispatch.DispatchServer;
 import emu.grasscutter.server.game.GameServer;
 import emu.grasscutter.server.http.HttpServer;
-import emu.grasscutter.server.http.dispatch.AuthenticationHandler;
-import emu.grasscutter.server.http.dispatch.RegionHandler;
-import emu.grasscutter.server.http.documentation.DocumentationServerHandler;
-import emu.grasscutter.server.http.documentation.HandbookHandler;
-import emu.grasscutter.server.http.handlers.AnnouncementsHandler;
-import emu.grasscutter.server.http.handlers.GachaHandler;
-import emu.grasscutter.server.http.handlers.GenericHandler;
-import emu.grasscutter.server.http.handlers.LogHandler;
+import emu.grasscutter.server.http.dispatch.*;
+import emu.grasscutter.server.http.documentation.*;
+import emu.grasscutter.server.http.handlers.*;
 import emu.grasscutter.tools.Tools;
-import emu.grasscutter.utils.Crypto;
-import emu.grasscutter.utils.JsonUtils;
-import emu.grasscutter.utils.StartupArguments;
-import emu.grasscutter.utils.Utils;
+import emu.grasscutter.utils.*;
 import emu.grasscutter.utils.lang.Language;
 import io.netty.util.concurrent.FastThreadLocalThread;
-import java.io.File;
-import java.io.FileWriter;
-import java.io.IOError;
-import java.io.IOException;
-import java.util.Calendar;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.LinkedBlockingDeque;
-import java.util.concurrent.ThreadPoolExecutor;
-import java.util.concurrent.TimeUnit;
-import javax.annotation.Nullable;
-import lombok.Getter;
-import lombok.Setter;
-import org.jline.reader.EndOfFileException;
-import org.jline.reader.LineReader;
-import org.jline.reader.LineReaderBuilder;
-import org.jline.reader.UserInterruptException;
-import org.jline.terminal.Terminal;
-import org.jline.terminal.TerminalBuilder;
+import lombok.*;
+import org.jline.reader.*;
+import org.jline.terminal.*;
 import org.reflections.Reflections;
 import org.slf4j.LoggerFactory;
 
+import javax.annotation.Nullable;
+import java.io.*;
+import java.util.Calendar;
+import java.util.concurrent.*;
+
+import static emu.grasscutter.config.Configuration.SERVER;
+import static emu.grasscutter.utils.lang.Language.translate;
+
 public final class Grasscutter {
     public static final File configFile = new File("./config.json");
     public static final Reflections reflector = new Reflections("emu.grasscutter");
@@ -156,8 +133,6 @@ public final class Grasscutter {
 
         // Create a server hook instance with both servers.
         new ServerHelper(gameServer, httpServer);
-        // noinspection removal
-        new ServerHook(gameServer, httpServer);
 
         // Create plugin manager instance.
         pluginManager = new PluginManager();
diff --git a/src/main/java/emu/grasscutter/game/world/WorldDataSystem.java b/src/main/java/emu/grasscutter/game/world/WorldDataSystem.java
index 010122df1..92122c60d 100644
--- a/src/main/java/emu/grasscutter/game/world/WorldDataSystem.java
+++ b/src/main/java/emu/grasscutter/game/world/WorldDataSystem.java
@@ -1,27 +1,19 @@
 package emu.grasscutter.game.world;
 
 import emu.grasscutter.Grasscutter;
-import emu.grasscutter.data.DataLoader;
-import emu.grasscutter.data.GameData;
-import emu.grasscutter.data.excels.InvestigationMonsterData;
-import emu.grasscutter.data.excels.RewardPreviewData;
+import emu.grasscutter.data.*;
+import emu.grasscutter.data.excels.*;
 import emu.grasscutter.data.excels.world.WorldLevelData;
-import emu.grasscutter.game.entity.gadget.chest.BossChestInteractHandler;
-import emu.grasscutter.game.entity.gadget.chest.ChestInteractHandler;
-import emu.grasscutter.game.entity.gadget.chest.NormalChestInteractHandler;
+import emu.grasscutter.game.entity.gadget.chest.*;
 import emu.grasscutter.game.player.Player;
 import emu.grasscutter.net.proto.InvestigationMonsterOuterClass;
-import emu.grasscutter.scripts.data.SceneGroup;
-import emu.grasscutter.scripts.data.SceneMonster;
-import emu.grasscutter.server.game.BaseGameSystem;
-import emu.grasscutter.server.game.GameServer;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Objects;
-import java.util.concurrent.ConcurrentHashMap;
+import emu.grasscutter.scripts.data.*;
+import emu.grasscutter.server.game.*;
 import org.luaj.vm2.LuaError;
 
+import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
+
 public class WorldDataSystem extends BaseGameSystem {
     private final Map<String, ChestInteractHandler> chestInteractHandlerMap; // chestType-Handler
     private final Map<String, SceneGroup> sceneInvestigationGroupMap; // <sceneId_groupId, Group>
@@ -57,7 +49,6 @@ public class WorldDataSystem extends BaseGameSystem {
         return chestInteractHandlerMap;
     }
 
-    @Deprecated
     public RewardPreviewData getRewardByBossId(int monsterId) {
         var investigationMonsterData =
                 GameData.getInvestigationMonsterDataMap().values().parallelStream()
@@ -65,11 +56,8 @@ public class WorldDataSystem extends BaseGameSystem {
                         .filter(imd -> imd.getMonsterIdList().get(0) == monsterId)
                         .findFirst();
 
-        if (investigationMonsterData.isEmpty()) {
-            return null;
-        }
-        return GameData.getRewardPreviewDataMap()
-                .get(investigationMonsterData.get().getRewardPreviewId());
+        return investigationMonsterData.map(monsterData -> GameData.getRewardPreviewDataMap()
+            .get(monsterData.getRewardPreviewId())).orElse(null);
     }
 
     private SceneGroup getInvestigationGroup(int sceneId, int groupId) {
diff --git a/src/main/java/emu/grasscutter/plugin/Plugin.java b/src/main/java/emu/grasscutter/plugin/Plugin.java
index f92f7f157..6355a168a 100644
--- a/src/main/java/emu/grasscutter/plugin/Plugin.java
+++ b/src/main/java/emu/grasscutter/plugin/Plugin.java
@@ -3,21 +3,18 @@ package emu.grasscutter.plugin;
 import ch.qos.logback.classic.Level;
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.plugin.api.ServerHelper;
-import emu.grasscutter.plugin.api.ServerHook;
 import emu.grasscutter.server.game.GameServer;
 import emu.grasscutter.utils.FileUtils;
-import java.io.File;
-import java.io.InputStream;
-import java.net.URLClassLoader;
 import lombok.EqualsAndHashCode;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+import org.slf4j.*;
+
+import java.io.*;
+import java.net.URLClassLoader;
 
 /** The base class for all plugins to extend. */
 @EqualsAndHashCode
-@SuppressWarnings("removal")
 public abstract class Plugin {
-    private final ServerHelper server = ServerHook.getInstance();
+    private final ServerHelper server = ServerHelper.getInstance();
 
     private PluginIdentifier identifier;
     private URLClassLoader classLoader;
@@ -31,6 +28,7 @@ public abstract class Plugin {
      *
      * @param identifier The plugin's identifier.
      */
+    @SuppressWarnings("unused")
     private void initializePlugin(PluginIdentifier identifier, URLClassLoader classLoader) {
         if (this.identifier != null) {
             Grasscutter.getLogger().warn(this.identifier.name + " had a reinitialization attempt.");
@@ -109,8 +107,8 @@ public abstract class Plugin {
      *
      * @return A server hook singleton.
      */
-    public final ServerHook getHandle() {
-        return (ServerHook) this.server;
+    public final ServerHelper getHandle() {
+        return this.server;
     }
 
     /**
diff --git a/src/main/java/emu/grasscutter/plugin/api/ServerHelper.java b/src/main/java/emu/grasscutter/plugin/api/ServerHelper.java
index bc3ac7cc9..3980f4e6d 100644
--- a/src/main/java/emu/grasscutter/plugin/api/ServerHelper.java
+++ b/src/main/java/emu/grasscutter/plugin/api/ServerHelper.java
@@ -16,7 +16,7 @@ import java.util.List;
 import java.util.stream.Stream;
 
 /** Hooks into the {@link GameServer} class, adding convenient ways to do certain things. */
-public class ServerHelper {
+public final class ServerHelper {
     private static ServerHelper instance;
     private final GameServer gameServer;
     private final HttpServer httpServer;
diff --git a/src/main/java/emu/grasscutter/plugin/api/ServerHook.java b/src/main/java/emu/grasscutter/plugin/api/ServerHook.java
deleted file mode 100644
index e34c2bd5f..000000000
--- a/src/main/java/emu/grasscutter/plugin/api/ServerHook.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package emu.grasscutter.plugin.api;
-
-import emu.grasscutter.server.game.GameServer;
-import emu.grasscutter.server.http.HttpServer;
-
-@Deprecated(since = "2.0.0", forRemoval = true)
-public final class ServerHook extends ServerHelper {
-    private static ServerHook instance;
-
-    /**
-     * Hooks into a server.
-     *
-     * @param gameServer The game server to hook into.
-     * @param httpServer The HTTP server to hook into.
-     */
-    public ServerHook(GameServer gameServer, HttpServer httpServer) {
-        super(gameServer, httpServer);
-
-        instance = this;
-    }
-
-    /**
-     * Gets the server hook instance.
-     *
-     * @return A {@link ServerHook} singleton.
-     */
-    public static ServerHook getInstance() {
-        return instance;
-    }
-}
diff --git a/src/main/java/emu/grasscutter/utils/Utils.java b/src/main/java/emu/grasscutter/utils/Utils.java
index 3042555ca..727a855b4 100644
--- a/src/main/java/emu/grasscutter/utils/Utils.java
+++ b/src/main/java/emu/grasscutter/utils/Utils.java
@@ -1,31 +1,25 @@
 package emu.grasscutter.utils;
 
-import static emu.grasscutter.utils.FileUtils.getResourcePath;
-import static emu.grasscutter.utils.lang.Language.translate;
-
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.config.ConfigContainer;
 import emu.grasscutter.data.DataLoader;
 import emu.grasscutter.game.world.Position;
 import io.javalin.http.Context;
-import io.netty.buffer.ByteBuf;
-import io.netty.buffer.ByteBufUtil;
-import io.netty.buffer.Unpooled;
-import it.unimi.dsi.fastutil.ints.IntArrayList;
-import it.unimi.dsi.fastutil.ints.IntList;
+import io.netty.buffer.*;
+import it.unimi.dsi.fastutil.ints.*;
+import org.slf4j.Logger;
+
+import javax.annotation.Nullable;
 import java.io.*;
 import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
-import java.nio.file.StandardCopyOption;
-import java.time.DayOfWeek;
-import java.time.ZoneId;
-import java.time.ZoneOffset;
-import java.time.ZonedDateTime;
+import java.nio.file.*;
+import java.time.*;
 import java.time.temporal.TemporalAdjusters;
 import java.util.*;
 import java.util.concurrent.ThreadLocalRandom;
-import javax.annotation.Nullable;
-import org.slf4j.Logger;
+
+import static emu.grasscutter.utils.FileUtils.getResourcePath;
+import static emu.grasscutter.utils.lang.Language.translate;
 
 @SuppressWarnings({"UnusedReturnValue", "BooleanMethodIsAlwaysInverted"})
 public final class Utils {
@@ -196,10 +190,6 @@ public final class Utils {
         // Check for game data.
         if (!fileExists(dataFolder)) createFolder(dataFolder);
 
-        // Make sure the data folder is populated, if there are any missing files copy them from
-        // resources
-        DataLoader.checkAllFiles();
-
         // Check for Server resources.
         if (!Files.exists(getResourcePath("Server"))) {
             logger.info(translate("messages.status.resources.missing_server"));
@@ -217,6 +207,9 @@ public final class Utils {
 
         // Exit if there are any missing files.
         if (exit) System.exit(1);
+
+        // Validate the data directory.
+        DataLoader.checkAllFiles();
     }
 
     /**