diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/terracotta/TerracottaBundle.java b/HMCL/src/main/java/org/jackhuang/hmcl/terracotta/TerracottaBundle.java
index 7ec9df0e82a..75af775237e 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/terracotta/TerracottaBundle.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/terracotta/TerracottaBundle.java
@@ -27,7 +27,6 @@
 import org.jackhuang.hmcl.util.DigestUtils;
 import org.jackhuang.hmcl.util.io.ChecksumMismatchException;
 import org.jackhuang.hmcl.util.io.FileUtils;
-import org.jackhuang.hmcl.util.logging.Logger;
 import org.jackhuang.hmcl.util.platform.OperatingSystem;
 import org.jackhuang.hmcl.util.tree.TarFileTree;
 
@@ -45,6 +44,8 @@
 import java.util.List;
 import java.util.Map;
 
+import static org.jackhuang.hmcl.util.logging.Logger.LOG;
+
 public final class TerracottaBundle {
     private final Path root;
 
@@ -162,7 +163,7 @@ public AbstractTerracottaProvider.Status status() throws IOException {
                 return AbstractTerracottaProvider.Status.LEGACY_VERSION;
             }
         } catch (IOException e) {
-            Logger.LOG.warning("Cannot determine whether legacy versions exist.", e);
+            LOG.warning("Cannot determine whether legacy versions exist.", e);
         }
         return AbstractTerracottaProvider.Status.NOT_EXIST;
     }
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/FXUtils.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/FXUtils.java
index eb3c27fb0d2..624faa96c65 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/FXUtils.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/FXUtils.java
@@ -110,7 +110,10 @@
 import java.nio.file.PathMatcher;
 import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
-import java.util.function.*;
+import java.util.function.Consumer;
+import java.util.function.Function;
+import java.util.function.Predicate;
+import java.util.function.ToIntFunction;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -295,11 +298,6 @@ public static InvalidationListener observeWeak(Runnable runnable, Observable...
         return originalListener;
     }
 
-    public static void runLaterIf(BooleanSupplier condition, Runnable runnable) {
-        if (condition.getAsBoolean()) Platform.runLater(() -> runLaterIf(condition, runnable));
-        else runnable.run();
-    }
-
     public static void limitSize(ImageView imageView, double maxWidth, double maxHeight) {
         imageView.setPreserveRatio(true);
         onChangeAndOperate(imageView.imageProperty(), image -> {
@@ -379,10 +377,6 @@ public static void setValidateWhileTextChanged(Node field, boolean validate) {
             throw new IllegalArgumentException("Only JFXTextField and JFXPasswordField allowed");
     }
 
-    public static boolean getValidateWhileTextChanged(Node field) {
-        return field.getProperties().containsKey("FXUtils.validation");
-    }
-
     public static Rectangle setOverflowHidden(Region region) {
         Rectangle rectangle = new Rectangle();
         rectangle.widthProperty().bind(region.widthProperty());
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/AnimationUtils.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/AnimationUtils.java
index 57d21361d0e..4fcab3865c8 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/AnimationUtils.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/animation/AnimationUtils.java
@@ -18,9 +18,10 @@
 package org.jackhuang.hmcl.ui.animation;
 
 import javafx.scene.Node;
-import org.jackhuang.hmcl.setting.ConfigHolder;
 import org.jackhuang.hmcl.util.platform.OperatingSystem;
 
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
+
 /**
  * @author Glavo
  */
@@ -37,7 +38,7 @@ private AnimationUtils() {
     public static void init() {
     }
 
-    private static final boolean ENABLED = !ConfigHolder.config().isAnimationDisabled();
+    private static final boolean ENABLED = !config().isAnimationDisabled();
     private static final boolean PLAY_WINDOW_ANIMATION = ENABLED && !OperatingSystem.CURRENT_OS.isLinuxOrBSD();
 
     public static boolean isAnimationEnabled() {
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/terracotta/TerracottaControllerPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/terracotta/TerracottaControllerPage.java
index d7d7d3f77f5..d47071a3960 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/terracotta/TerracottaControllerPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/terracotta/TerracottaControllerPage.java
@@ -56,7 +56,6 @@
 import org.jackhuang.hmcl.util.i18n.LocaleUtils;
 import org.jackhuang.hmcl.util.io.FileUtils;
 import org.jackhuang.hmcl.util.io.Zipper;
-import org.jackhuang.hmcl.util.logging.Logger;
 
 import java.io.OutputStream;
 import java.nio.charset.StandardCharsets;
@@ -71,6 +70,7 @@
 
 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 import static org.jackhuang.hmcl.util.i18n.I18n.i18n;
+import static org.jackhuang.hmcl.util.logging.Logger.LOG;
 
 public class TerracottaControllerPage extends StackPane {
     private static final String FEEDBACK_TIP = "terracotta-feedback";
@@ -460,7 +460,7 @@ public TerracottaControllerPage() {
                         try (Zipper zipper = new Zipper(path)) {
                             zipper.putTextFile(data, StandardCharsets.UTF_8, "terracotta.log");
                             try (OutputStream os = zipper.putStream("hmcl-latest.log")) {
-                                Logger.LOG.exportLogs(os);
+                                LOG.exportLogs(os);
                             }
                         }
                         FXUtils.showFileInExplorer(path);
diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/versions/ResourcePackListPage.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/versions/ResourcePackListPage.java
index 120c1f3f7b9..34872f72307 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/versions/ResourcePackListPage.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/versions/ResourcePackListPage.java
@@ -37,12 +37,13 @@
 import javafx.stage.FileChooser;
 import javafx.stage.Stage;
 import javafx.util.Duration;
-import org.jackhuang.hmcl.mod.*;
+import org.jackhuang.hmcl.mod.LocalAddonFile;
+import org.jackhuang.hmcl.mod.RemoteMod;
+import org.jackhuang.hmcl.mod.RemoteModRepository;
 import org.jackhuang.hmcl.mod.curse.CurseForgeRemoteModRepository;
 import org.jackhuang.hmcl.mod.modrinth.ModrinthRemoteModRepository;
 import org.jackhuang.hmcl.resourcepack.ResourcePackFile;
 import org.jackhuang.hmcl.resourcepack.ResourcePackManager;
-import org.jackhuang.hmcl.setting.ConfigHolder;
 import org.jackhuang.hmcl.setting.DownloadProviders;
 import org.jackhuang.hmcl.setting.Profile;
 import org.jackhuang.hmcl.task.Schedulers;
@@ -67,6 +68,7 @@
 import java.util.function.Predicate;
 import java.util.stream.Stream;
 
+import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 import static org.jackhuang.hmcl.ui.FXUtils.ignoreEvent;
 import static org.jackhuang.hmcl.ui.FXUtils.onEscPressed;
 import static org.jackhuang.hmcl.ui.ToolbarListPageSkin.createToolbarButton2;
@@ -194,13 +196,13 @@ private void onOpenFolder() {
     }
 
     private void setSelectedEnabled(List<ResourcePackInfoObject> selectedItems, boolean enabled) {
-        if (!Boolean.TRUE.equals(ConfigHolder.config().getShownTips().get(TIP_KEY)) && enabled && !selectedItems.stream().map(ResourcePackInfoObject::getFile).allMatch(ResourcePackFile::isCompatible)) {
+        if (!Boolean.TRUE.equals(config().getShownTips().get(TIP_KEY)) && enabled && !selectedItems.stream().map(ResourcePackInfoObject::getFile).allMatch(ResourcePackFile::isCompatible)) {
             Controllers.confirm(
                     i18n("resourcepack.warning.manipulate"),
                     i18n("message.warning"),
                     MessageDialogPane.MessageType.WARNING,
                     () -> {
-                        ConfigHolder.config().getShownTips().put(TIP_KEY, true);
+                        config().getShownTips().put(TIP_KEY, true);
                         setSelectedEnabled(selectedItems, true);
                     }, null);
         } else {
@@ -493,14 +495,14 @@ public ResourcePackListCell(JFXListView<ResourcePackInfoObject> listView, Resour
             checkBox = new JFXCheckBox() {
                 @Override
                 public void fire() {
-                    if (!Boolean.TRUE.equals(ConfigHolder.config().getShownTips().get(TIP_KEY)) && !isSelected() && object != null && !object.getFile().isCompatible()) {
+                    if (!Boolean.TRUE.equals(config().getShownTips().get(TIP_KEY)) && !isSelected() && object != null && !object.getFile().isCompatible()) {
                         Controllers.confirm(
                                 i18n("resourcepack.warning.manipulate"),
                                 i18n("message.info"),
                                 MessageDialogPane.MessageType.INFO,
                                 () -> {
                                     super.fire();
-                                    ConfigHolder.config().getShownTips().put(TIP_KEY, true);
+                                    config().getShownTips().put(TIP_KEY, true);
                                 }, null);
                     } else {
                         super.fire();
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/mod/multimc/MultiMCInstancePatch.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/mod/multimc/MultiMCInstancePatch.java
index 51483e4a38b..fb90a08b300 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/mod/multimc/MultiMCInstancePatch.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/mod/multimc/MultiMCInstancePatch.java
@@ -20,37 +20,20 @@
 import com.google.gson.JsonParseException;
 import com.google.gson.annotations.SerializedName;
 import org.jackhuang.hmcl.download.LibraryAnalyzer;
-import org.jackhuang.hmcl.game.Argument;
-import org.jackhuang.hmcl.game.Arguments;
-import org.jackhuang.hmcl.game.Artifact;
-import org.jackhuang.hmcl.game.AssetIndexInfo;
-import org.jackhuang.hmcl.game.CompatibilityRule;
-import org.jackhuang.hmcl.game.DownloadType;
-import org.jackhuang.hmcl.game.GameJavaVersion;
-import org.jackhuang.hmcl.game.Library;
-import org.jackhuang.hmcl.game.OSRestriction;
-import org.jackhuang.hmcl.game.RuledArgument;
-import org.jackhuang.hmcl.game.StringArgument;
-import org.jackhuang.hmcl.game.Version;
+import org.jackhuang.hmcl.game.*;
 import org.jackhuang.hmcl.util.Immutable;
 import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.StringUtils;
 import org.jackhuang.hmcl.util.gson.JsonMap;
 import org.jackhuang.hmcl.util.gson.JsonUtils;
 import org.jackhuang.hmcl.util.io.NetworkUtils;
-import org.jackhuang.hmcl.util.logging.Logger;
 import org.jackhuang.hmcl.util.platform.OperatingSystem;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Set;
+import java.util.*;
 import java.util.stream.Collectors;
 
+import static org.jackhuang.hmcl.util.logging.Logger.LOG;
+
 /**
  * @author huangyuhui
  */
@@ -443,7 +426,7 @@ public static ResolvedInstance resolveArtifact(List<MultiMCInstancePatch> patche
             if (message.charAt(message.length() - 1) == '\n') {
                 message.setLength(message.length() - 1);
             }
-            Logger.LOG.warning("Cannot fully parse MultiMC modpack with following unsupported features: \n" + message);
+            LOG.warning("Cannot fully parse MultiMC modpack with following unsupported features: \n" + message);
         }
         return new ResolvedInstance(version, gameVersion, mainJar, jarModFileNames, mavenOnlyFiles);
     }
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/Lang.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/Lang.java
index 4dde1a0d5e2..afcec4b94e1 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/Lang.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/Lang.java
@@ -38,14 +38,6 @@ public static <T> T requireNonNullElse(T value, T defaultValue) {
         return value != null ? value : defaultValue;
     }
 
-    public static <T> T requireNonNullElseGet(T value, Supplier<? extends T> defaultValue) {
-        return value != null ? value : defaultValue.get();
-    }
-
-    public static <T, U> U requireNonNullElseGet(T value, Function<? super T, ? extends U> mapper, Supplier<? extends U> defaultValue) {
-        return value != null ? mapper.apply(value) : defaultValue.get();
-    }
-
     /**
      * Construct a mutable map by given key-value pairs.
      *
@@ -134,12 +126,6 @@ public static <T> T merge(T a, T b, BinaryOperator<T> operator) {
         return operator.apply(a, b);
     }
 
-    public static <T> List<T> removingDuplicates(List<T> list) {
-        LinkedHashSet<T> set = new LinkedHashSet<>(list.size());
-        set.addAll(list);
-        return new ArrayList<>(set);
-    }
-
     /**
      * Join two collections into one list.
      *
@@ -357,15 +343,6 @@ public static <T, E> BiConsumer<T, E> wrap(ExceptionalBiConsumer<T, E, ?> fn) {
         };
     }
 
-    @SafeVarargs
-    public static <T> Consumer<T> compose(Consumer<T>... consumers) {
-        return t -> {
-            for (Consumer<T> consumer : consumers) {
-                consumer.accept(t);
-            }
-        };
-    }
-
     @SuppressWarnings("OptionalUsedAsFieldOrParameterType")
     public static <T> Stream<T> toStream(Optional<T> optional) {
         return optional.map(Stream::of).orElseGet(Stream::empty);
@@ -398,13 +375,6 @@ public static <T> Iterable<T> toIterable(Iterator<T> iterator) {
         return () -> iterator;
     }
 
-    public static <T, U> void forEachZipped(Iterable<T> i1, Iterable<U> i2, BiConsumer<T, U> action) {
-        Iterator<T> it1 = i1.iterator();
-        Iterator<U> it2 = i2.iterator();
-        while (it1.hasNext() && it2.hasNext())
-            action.accept(it1.next(), it2.next());
-    }
-
     public static Throwable resolveException(Throwable e) {
         if (e instanceof ExecutionException || e instanceof CompletionException)
             return resolveException(e.getCause());
@@ -412,16 +382,6 @@ public static Throwable resolveException(Throwable e) {
             return e;
     }
 
-    /**
-     * This is a useful function to prevent exceptions being eaten when using CompletableFuture.
-     * You can write:
-     * ... .exceptionally(handleUncaught);
-     */
-    public static final Function<Throwable, Void> handleUncaught = e -> {
-        handleUncaughtException(e);
-        return null;
-    };
-
     public static <R> R handleUncaughtException(Throwable e) {
         Thread.currentThread().getUncaughtExceptionHandler().uncaughtException(Thread.currentThread(), e);
         return null;