Use @JsonAdapter

HMCL/src/main/java/org/jackhuang/hmcl/game/HMCLGameRepository.java

@@ -25,7 +25,6 @@ import org.jackhuang.hmcl.event.RefreshedVersionsEvent;
 import org.jackhuang.hmcl.event.RefreshingVersionsEvent;
 import org.jackhuang.hmcl.setting.EnumGameDirectory;
 import org.jackhuang.hmcl.setting.Profile;
-import org.jackhuang.hmcl.setting.Settings;
 import org.jackhuang.hmcl.setting.VersionSetting;
 import org.jackhuang.hmcl.util.Logging;
 import org.jackhuang.hmcl.util.io.FileUtils;
@@ -227,8 +226,8 @@ public class HMCLGameRepository extends DefaultGameRepository {
         beingModpackVersions.remove(id);
     }
 
-    private static final Gson GSON = new GsonBuilder().setPrettyPrinting()
-            .registerTypeAdapter(VersionSetting.class, VersionSetting.Serializer.INSTANCE)
+    private static final Gson GSON = new GsonBuilder()
+            .setPrettyPrinting()
             .create();
 
     private static final HashSet<String> FORBIDDEN = new HashSet<>(Arrays.asList("modpack", "minecraftinstance", "manifest"));

HMCL/src/main/java/org/jackhuang/hmcl/setting/Config.java

@@ -52,15 +52,11 @@ public final class Config implements Cloneable, Observable {
     public static final int CURRENT_UI_VERSION = 0;
 
     private static final Gson CONFIG_GSON = new GsonBuilder()
-            .registerTypeAdapter(VersionSetting.class, VersionSetting.Serializer.INSTANCE)
-            .registerTypeAdapter(Profile.class, Profile.Serializer.INSTANCE)
             .registerTypeAdapter(File.class, FileTypeAdapter.INSTANCE)
             .registerTypeAdapter(ObservableList.class, new ObservableListCreator())
             .registerTypeAdapter(ObservableSet.class, new ObservableSetCreator())
             .registerTypeAdapter(ObservableMap.class, new ObservableMapCreator())
             .registerTypeAdapterFactory(new JavaFxPropertyTypeAdapterFactory(true, true))
-            .registerTypeAdapter(Theme.class, new Theme.TypeAdapter())
-            .registerTypeAdapter(SupportedLocale.class, new SupportedLocale.TypeAdapter())
             .registerTypeAdapter(EnumBackgroundImage.class, new EnumOrdinalDeserializer<>(EnumBackgroundImage.class)) // backward compatibility for backgroundType
             .registerTypeAdapter(Proxy.Type.class, new EnumOrdinalDeserializer<>(Proxy.Type.class)) // backward compatibility for hasProxy
             .setPrettyPrinting()

HMCL/src/main/java/org/jackhuang/hmcl/setting/Profile.java

@@ -18,6 +18,7 @@
 package org.jackhuang.hmcl.setting;
 
 import com.google.gson.*;
+import com.google.gson.annotations.JsonAdapter;
 import com.jfoenix.concurrency.JFXUtilities;
 import javafx.application.Platform;
 import javafx.beans.InvalidationListener;
@@ -47,6 +48,7 @@ import static org.jackhuang.hmcl.ui.FXUtils.onInvalidating;
  *
  * @author huangyuhui
  */
+@JsonAdapter(Profile.Serializer.class)
 public final class Profile implements Observable {
     private final WeakListenerHolder listenerHolder = new WeakListenerHolder();
     private final HMCLGameRepository repository;
@@ -217,11 +219,6 @@ public final class Profile implements Observable {
     }
 
     public static final class Serializer implements JsonSerializer<Profile>, JsonDeserializer<Profile> {
-        public static final Serializer INSTANCE = new Serializer();
-
-        private Serializer() {
-        }
-
         @Override
         public JsonElement serialize(Profile src, Type typeOfSrc, JsonSerializationContext context) {
             if (src == null)

HMCL/src/main/java/org/jackhuang/hmcl/setting/Theme.java

@@ -17,6 +17,7 @@
  */
 package org.jackhuang.hmcl.setting;
 
+import com.google.gson.annotations.JsonAdapter;
 import com.google.gson.stream.JsonReader;
 import com.google.gson.stream.JsonWriter;
 import javafx.beans.binding.Bindings;
@@ -34,6 +35,7 @@ import java.util.logging.Level;
 
 import static org.jackhuang.hmcl.setting.ConfigHolder.config;
 
+@JsonAdapter(Theme.TypeAdapter.class)
 public class Theme {
     public static final Theme BLUE = new Theme("blue", "#5C6BC0");
 

HMCL/src/main/java/org/jackhuang/hmcl/setting/VersionSetting.java

@@ -18,6 +18,8 @@
 package org.jackhuang.hmcl.setting;
 
 import com.google.gson.*;
+import com.google.gson.annotations.JsonAdapter;
+
 import javafx.beans.InvalidationListener;
 import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.game.LaunchOptions;
@@ -43,6 +45,7 @@ import static org.jackhuang.hmcl.setting.ConfigHolder.config;
  *
  * @author huangyuhui
  */
+@JsonAdapter(VersionSetting.Serializer.class)
 public final class VersionSetting {
 
     public transient String id;
@@ -550,11 +553,6 @@ public final class VersionSetting {
     }
 
     public static class Serializer implements JsonSerializer<VersionSetting>, JsonDeserializer<VersionSetting> {
-        public static final Serializer INSTANCE = new Serializer();
-
-        private Serializer() {
-        }
-
         @Override
         public JsonElement serialize(VersionSetting src, Type typeOfSrc, JsonSerializationContext context) {
             if (src == null) return JsonNull.INSTANCE;

HMCL/src/main/java/org/jackhuang/hmcl/util/i18n/Locales.java

@@ -17,6 +17,7 @@
  */
 package org.jackhuang.hmcl.util.i18n;
 
+import com.google.gson.annotations.JsonAdapter;
 import com.google.gson.stream.JsonReader;
 import com.google.gson.stream.JsonWriter;
 import org.jackhuang.hmcl.util.Lang;
@@ -83,6 +84,7 @@ public final class Locales {
         else throw new IllegalArgumentException("Unknown locale: " + locale);
     }
 
+    @JsonAdapter(SupportedLocale.TypeAdapter.class)
     public static class SupportedLocale {
         private final Locale locale;
         private final String name;