- optimize imports

Signed-off-by: syeyoung <cyoung06@naver.com>

23 files changed, 37 insertions, 69 deletions

diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/DGInterface.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/DGInterface.java
index c88a3cbf..8da55e40 100755
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/DGInterface.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/DGInterface.java
@@ -19,8 +19,6 @@
 package kr.syeyoung.dungeonsguide.launcher;
 
 import net.minecraft.client.resources.IResourceManager;
-import net.minecraftforge.fml.common.event.FMLInitializationEvent;
-import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
 
 import java.io.File;
 
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/Main.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/Main.java
index c9017672..79019c6a 100755
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/Main.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/Main.java
@@ -21,9 +21,9 @@ package kr.syeyoung.dungeonsguide.launcher;
 import kr.syeyoung.dungeonsguide.launcher.auth.AuthManager;
 import kr.syeyoung.dungeonsguide.launcher.branch.UpdateRetrieverUtil;
 import kr.syeyoung.dungeonsguide.launcher.exceptions.DungeonsGuideLoadingException;
+import kr.syeyoung.dungeonsguide.launcher.exceptions.DungeonsGuideUnloadingException;
 import kr.syeyoung.dungeonsguide.launcher.exceptions.NoSuitableLoaderFoundException;
 import kr.syeyoung.dungeonsguide.launcher.exceptions.NoVersionFoundException;
-import kr.syeyoung.dungeonsguide.launcher.exceptions.DungeonsGuideUnloadingException;
 import kr.syeyoung.dungeonsguide.launcher.gui.screen.GuiChooseVersion;
 import kr.syeyoung.dungeonsguide.launcher.gui.screen.GuiDisplayer;
 import kr.syeyoung.dungeonsguide.launcher.gui.screen.GuiLoadingError;
@@ -48,9 +48,13 @@ import net.minecraftforge.fml.common.gameevent.TickEvent;
 import org.bouncycastle.jce.provider.BouncyCastleProvider;
 import org.lwjgl.LWJGLException;
 
-import java.io.*;
+import java.io.File;
+import java.io.IOException;
 import java.security.Security;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.UUID;
 
 @Mod(modid = Main.MOD_ID, version = Main.VERSION)
 public class Main
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthManager.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthManager.java
index cf47d9b9..0325b758 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthManager.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthManager.java
@@ -36,7 +36,10 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
 import java.util.UUID;
-import java.util.concurrent.*;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.TimeUnit;
 
 
 public class AuthManager {
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthUtil.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthUtil.java
index 64d25116..50aeae0c 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthUtil.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/AuthUtil.java
@@ -18,17 +18,9 @@
 
 package kr.syeyoung.dungeonsguide.launcher.auth;
 
-import com.google.gson.JsonElement;
-import com.google.gson.JsonParser;
-
-import javax.crypto.*;
-import javax.crypto.spec.IvParameterSpec;
-import javax.crypto.spec.SecretKeySpec;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.net.URL;
-import java.security.*;
+import java.security.KeyFactory;
+import java.security.NoSuchAlgorithmException;
+import java.security.PublicKey;
 import java.security.spec.InvalidKeySpecException;
 import java.security.spec.X509EncodedKeySpec;
 
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/DGResponse.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/DGResponse.java
index 7f35387a..700fffd0 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/DGResponse.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/DGResponse.java
@@ -20,7 +20,6 @@ package kr.syeyoung.dungeonsguide.launcher.auth;
 
 import lombok.AllArgsConstructor;
 import lombok.Data;
-import org.json.JSONObject;
 
 @Data
 @AllArgsConstructor
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/DgAuthUtil.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/DgAuthUtil.java
index 8aadd209..2c59dd2c 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/DgAuthUtil.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/DgAuthUtil.java
@@ -42,7 +42,10 @@ import java.io.InputStream;
 import java.math.BigInteger;
 import java.net.HttpURLConnection;
 import java.net.URL;
-import java.security.*;
+import java.security.InvalidKeyException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
 import java.security.spec.InvalidKeySpecException;
 import java.util.stream.Collectors;
 
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/AuthToken.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/AuthToken.java
index 1741698f..d0c01be1 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/AuthToken.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/AuthToken.java
@@ -18,8 +18,6 @@
 
 package kr.syeyoung.dungeonsguide.launcher.auth.token;
 
-import java.security.KeyPair;
-import java.security.interfaces.RSAKey;
 import java.time.Instant;
 
 public interface AuthToken {
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/DGAuthToken.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/DGAuthToken.java
index e65f3043..efd6ecbc 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/DGAuthToken.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/DGAuthToken.java
@@ -18,7 +18,6 @@
 
 package kr.syeyoung.dungeonsguide.launcher.auth.token;
 
-import kr.syeyoung.dungeonsguide.launcher.auth.AuthUtil;
 import kr.syeyoung.dungeonsguide.launcher.auth.DgAuthUtil;
 import org.json.JSONObject;
 
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/FailedAuthToken.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/FailedAuthToken.java
index 3a66595d..84061473 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/FailedAuthToken.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/FailedAuthToken.java
@@ -18,7 +18,6 @@
 
 package kr.syeyoung.dungeonsguide.launcher.auth.token;
 
-import java.security.KeyPair;
 import java.time.Instant;
 
 public class FailedAuthToken implements AuthToken {
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/NullToken.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/NullToken.java
index 7a97d6e4..d2282e3f 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/NullToken.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/auth/token/NullToken.java
@@ -18,7 +18,6 @@
 
 package kr.syeyoung.dungeonsguide.launcher.auth.token;
 
-import java.security.KeyPair;
 import java.time.Instant;
 
 public class NullToken implements AuthToken {
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/coremod/DGTweaker.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/coremod/DGTweaker.java
index 5c3e0836..af7966a2 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/coremod/DGTweaker.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/coremod/DGTweaker.java
@@ -18,12 +18,8 @@
 
 package kr.syeyoung.dungeonsguide.launcher.coremod;
 
-import net.minecraft.launchwrapper.ITweaker;
-import net.minecraft.launchwrapper.LaunchClassLoader;
 import net.minecraftforge.fml.relauncher.IFMLLoadingPlugin;
 
-import java.io.File;
-import java.util.List;
 import java.util.Map;
 
 public class DGTweaker implements IFMLLoadingPlugin {
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/events/DGAwareEventSubscriptionTransformer.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/events/DGAwareEventSubscriptionTransformer.java
index 49ef2b38..4cf6bbc9 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/events/DGAwareEventSubscriptionTransformer.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/events/DGAwareEventSubscriptionTransformer.java
@@ -30,7 +30,6 @@ import java.util.List;
 import static org.objectweb.asm.ClassWriter.COMPUTE_FRAMES;
 import static org.objectweb.asm.Opcodes.*;
 import static org.objectweb.asm.Type.*;
-import static org.objectweb.asm.Type.VOID_TYPE;
 
 public class DGAwareEventSubscriptionTransformer implements IClassTransformer
 {
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/events/OwnerAwareASMEventHandler.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/events/OwnerAwareASMEventHandler.java
index c23a5ca4..124a6bc7 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/events/OwnerAwareASMEventHandler.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/events/OwnerAwareASMEventHandler.java
@@ -18,14 +18,7 @@
 
 package kr.syeyoung.dungeonsguide.launcher.events;
 
-import static org.objectweb.asm.Opcodes.*;
-
-import java.lang.reflect.Method;
-import java.util.HashMap;
-import java.util.WeakHashMap;
-
 import net.minecraftforge.fml.common.ModContainer;
-
 import net.minecraftforge.fml.common.eventhandler.Event;
 import net.minecraftforge.fml.common.eventhandler.EventPriority;
 import net.minecraftforge.fml.common.eventhandler.IEventListener;
@@ -35,7 +28,9 @@ import org.objectweb.asm.ClassWriter;
 import org.objectweb.asm.MethodVisitor;
 import org.objectweb.asm.Type;
 
-import com.google.common.collect.Maps;
+import java.lang.reflect.Method;
+
+import static org.objectweb.asm.Opcodes.*;
 
 
 public class OwnerAwareASMEventHandler implements IEventListener
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/exceptions/NoSuitableLoaderFoundException.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/exceptions/NoSuitableLoaderFoundException.java
index 2f6665d5..67ae3a44 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/exceptions/NoSuitableLoaderFoundException.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/exceptions/NoSuitableLoaderFoundException.java
@@ -18,8 +18,6 @@
 
 package kr.syeyoung.dungeonsguide.launcher.exceptions;
 
-import lombok.AllArgsConstructor;
-
 public class NoSuitableLoaderFoundException extends Exception {
     private String jvmFlag;
     private String configuration;
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/exceptions/http/ResponseParsingException.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/exceptions/http/ResponseParsingException.java
index 59454e17..82cc9a0a 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/exceptions/http/ResponseParsingException.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/exceptions/http/ResponseParsingException.java
@@ -19,7 +19,6 @@
 package kr.syeyoung.dungeonsguide.launcher.exceptions.http;
 
 import lombok.Getter;
-import org.json.JSONObject;
 
 public class ResponseParsingException extends RuntimeException {
     @Getter
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiChooseVersion.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiChooseVersion.java
index 0daa6735..9f55cc7c 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiChooseVersion.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiChooseVersion.java
@@ -23,24 +23,21 @@ import kr.syeyoung.dungeonsguide.launcher.Main;
 import kr.syeyoung.dungeonsguide.launcher.branch.Update;
 import kr.syeyoung.dungeonsguide.launcher.branch.UpdateBranch;
 import kr.syeyoung.dungeonsguide.launcher.branch.UpdateRetrieverUtil;
-import kr.syeyoung.dungeonsguide.launcher.exceptions.NoSuitableLoaderFoundException;
-import kr.syeyoung.dungeonsguide.launcher.exceptions.NoVersionFoundException;
 import kr.syeyoung.dungeonsguide.launcher.gui.tooltip.Notification;
 import kr.syeyoung.dungeonsguide.launcher.gui.tooltip.NotificationManager;
-import kr.syeyoung.dungeonsguide.launcher.loader.IDGLoader;
 import kr.syeyoung.dungeonsguide.launcher.loader.JarLoader;
 import kr.syeyoung.dungeonsguide.launcher.loader.LocalLoader;
 import kr.syeyoung.dungeonsguide.launcher.loader.RemoteLoader;
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.gui.*;
-import net.minecraftforge.common.config.Configuration;
+import net.minecraft.client.gui.FontRenderer;
+import net.minecraft.client.gui.Gui;
+import net.minecraft.client.gui.GuiButton;
+import net.minecraft.client.gui.ScaledResolution;
 import net.minecraftforge.fml.client.config.GuiCheckBox;
-import net.minecraftforge.fml.common.FMLCommonHandler;
 
 import java.awt.*;
 import java.awt.datatransfer.StringSelection;
 import java.io.ByteArrayOutputStream;
-import java.io.File;
 import java.io.IOException;
 import java.io.PrintStream;
 import java.util.Collections;
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiLoadingError.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiLoadingError.java
index 1f3c3875..d85909dd 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiLoadingError.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiLoadingError.java
@@ -21,7 +21,10 @@ package kr.syeyoung.dungeonsguide.launcher.gui.screen;
 import kr.syeyoung.dungeonsguide.launcher.gui.tooltip.Notification;
 import kr.syeyoung.dungeonsguide.launcher.gui.tooltip.NotificationManager;
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.gui.*;
+import net.minecraft.client.gui.FontRenderer;
+import net.minecraft.client.gui.Gui;
+import net.minecraft.client.gui.GuiButton;
+import net.minecraft.client.gui.ScaledResolution;
 import net.minecraftforge.fml.common.FMLCommonHandler;
 import org.lwjgl.opengl.GL11;
 
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiPrivacyPolicy.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiPrivacyPolicy.java
index 9f219b18..39cf6e13 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiPrivacyPolicy.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/screen/GuiPrivacyPolicy.java
@@ -19,10 +19,10 @@
 package kr.syeyoung.dungeonsguide.launcher.gui.screen;
 
 import kr.syeyoung.dungeonsguide.launcher.auth.AuthManager;
-import kr.syeyoung.dungeonsguide.launcher.exceptions.auth.AuthFailedExeption;
-import kr.syeyoung.dungeonsguide.launcher.exceptions.auth.PrivacyPolicyRequiredException;
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.gui.*;
+import net.minecraft.client.gui.FontRenderer;
+import net.minecraft.client.gui.GuiButton;
+import net.minecraft.client.gui.ScaledResolution;
 import org.lwjgl.opengl.GL11;
 
 import java.io.IOException;
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/tooltip/NotificationManager.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/tooltip/NotificationManager.java
index e458383a..e9a394cf 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/tooltip/NotificationManager.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/gui/tooltip/NotificationManager.java
@@ -30,8 +30,10 @@ import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
 import org.lwjgl.input.Mouse;
 
 import java.awt.*;
-import java.util.*;
-import java.util.List;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
 
 public class NotificationManager {
     public static final NotificationManager INSTANCE = new NotificationManager();
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/DevEnvLoader.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/DevEnvLoader.java
index 54969438..4f0fc0be 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/DevEnvLoader.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/DevEnvLoader.java
@@ -21,15 +21,6 @@ package kr.syeyoung.dungeonsguide.launcher.loader;
 import kr.syeyoung.dungeonsguide.launcher.DGInterface;
 import kr.syeyoung.dungeonsguide.launcher.exceptions.DungeonsGuideLoadingException;
 import kr.syeyoung.dungeonsguide.launcher.exceptions.DungeonsGuideUnloadingException;
-import net.minecraft.launchwrapper.LaunchClassLoader;
-import org.apache.commons.io.IOUtils;
-
-import java.io.BufferedInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.lang.ref.PhantomReference;
-import java.lang.ref.Reference;
-import java.lang.ref.ReferenceQueue;
 
 public class DevEnvLoader implements IDGLoader {
     private DGInterface dgInterface;
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/RemoteLoader.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/RemoteLoader.java
index 0ae9bdaf..667340d6 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/RemoteLoader.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/RemoteLoader.java
@@ -23,9 +23,8 @@ import kr.syeyoung.dungeonsguide.launcher.LoaderMeta;
 import kr.syeyoung.dungeonsguide.launcher.branch.Update;
 import kr.syeyoung.dungeonsguide.launcher.branch.UpdateRetrieverUtil;
 import kr.syeyoung.dungeonsguide.launcher.exceptions.DungeonsGuideLoadingException;
-import kr.syeyoung.dungeonsguide.launcher.exceptions.InvalidSignatureException;
-import kr.syeyoung.dungeonsguide.launcher.exceptions.NoVersionFoundException;
 import kr.syeyoung.dungeonsguide.launcher.exceptions.DungeonsGuideUnloadingException;
+import kr.syeyoung.dungeonsguide.launcher.exceptions.NoVersionFoundException;
 import kr.syeyoung.dungeonsguide.launcher.util.ProgressStateHolder;
 import net.minecraft.launchwrapper.LaunchClassLoader;
 import org.apache.commons.io.IOUtils;
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/SignatureValidator.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/SignatureValidator.java
index 14de0807..5e665dd4 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/SignatureValidator.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/loader/SignatureValidator.java
@@ -20,7 +20,6 @@ package kr.syeyoung.dungeonsguide.launcher.loader;
 
 import kr.syeyoung.dungeonsguide.launcher.branch.Update;
 import kr.syeyoung.dungeonsguide.launcher.exceptions.InvalidSignatureException;
-import org.apache.commons.codec.binary.Base64;
 import org.bouncycastle.openpgp.*;
 import org.bouncycastle.openpgp.jcajce.JcaPGPObjectFactory;
 import org.bouncycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
@@ -29,9 +28,6 @@ import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProv
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.security.*;
-import java.security.spec.InvalidKeySpecException;
-import java.security.spec.X509EncodedKeySpec;
 
 public class SignatureValidator {
     private static final String dungeonsGuideMasterSigningKey = "-----BEGIN PGP PUBLIC KEY BLOCK-----\n" +
diff --git a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/util/QRCodeGenerator.java b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/util/QRCodeGenerator.java
index d0c3306a..67aec678 100644
--- a/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/util/QRCodeGenerator.java
+++ b/loader/src/main/java/kr/syeyoung/dungeonsguide/launcher/util/QRCodeGenerator.java
@@ -20,7 +20,6 @@ package kr.syeyoung.dungeonsguide.launcher.util;
 
 import io.nayuki.qrcodegen.QrCode;
 
-import javax.imageio.ImageIO;
 import java.awt.image.BufferedImage;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;