diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/addon/meta/QuiltModMetadata.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/addon/meta/QuiltModMetadata.java
index 02e31ed7269..878a1255c43 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/addon/meta/QuiltModMetadata.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/addon/meta/QuiltModMetadata.java
@@ -35,31 +35,8 @@
 
 @Immutable
 public final class QuiltModMetadata {
-    private static final class QuiltLoader {
-        private static final class Metadata {
-            private final String name;
-            private final String description;
-            private final JsonObject contributors;
-            private final String icon;
-            private final JsonObject contact;
-
-            public Metadata(String name, String description, JsonObject contributors, String icon, JsonObject contact) {
-                this.name = name;
-                this.description = description;
-                this.contributors = contributors;
-                this.icon = icon;
-                this.contact = contact;
-            }
-        }
-
-        private final String id;
-        private final String version;
-        private final Metadata metadata;
-
-        public QuiltLoader(String id, String version, Metadata metadata) {
-            this.id = id;
-            this.version = version;
-            this.metadata = metadata;
+    private record QuiltLoader(String id, String version, Metadata metadata) {
+        private record Metadata(String name, String description, JsonObject contributors, String icon, JsonObject contact) {
         }
     }
 
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/fabric/FabricInstallTask.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/fabric/FabricInstallTask.java
index b21586201ac..fe5598f3c8d 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/fabric/FabricInstallTask.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/fabric/FabricInstallTask.java
@@ -129,89 +129,14 @@ private Version getPatch(FabricInfo fabricInfo, String gameVersion, String loade
     }
 
     @JsonSerializable
-    public static class FabricInfo {
-        private final LoaderInfo loader;
-        private final IntermediaryInfo intermediary;
-        private final JsonObject launcherMeta;
-
-        public FabricInfo(LoaderInfo loader, IntermediaryInfo intermediary, JsonObject launcherMeta) {
-            this.loader = loader;
-            this.intermediary = intermediary;
-            this.launcherMeta = launcherMeta;
-        }
-
-        public LoaderInfo getLoader() {
-            return loader;
-        }
-
-        public IntermediaryInfo getIntermediary() {
-            return intermediary;
-        }
-
-        public JsonObject getLauncherMeta() {
-            return launcherMeta;
-        }
+    public record FabricInfo(LoaderInfo loader, IntermediaryInfo intermediary, JsonObject launcherMeta) {
     }
 
     @JsonSerializable
-    public static class LoaderInfo {
-        private final String separator;
-        private final int build;
-        private final String maven;
-        private final String version;
-        private final boolean stable;
-
-        public LoaderInfo(String separator, int build, String maven, String version, boolean stable) {
-            this.separator = separator;
-            this.build = build;
-            this.maven = maven;
-            this.version = version;
-            this.stable = stable;
-        }
-
-        public String getSeparator() {
-            return separator;
-        }
-
-        public int getBuild() {
-            return build;
-        }
-
-        public String getMaven() {
-            return maven;
-        }
-
-        public String getVersion() {
-            return version;
-        }
-
-        public boolean isStable() {
-            return stable;
-        }
+    public record LoaderInfo(String separator, int build, String maven, String version, boolean stable) {
     }
 
     @JsonSerializable
-    public static class IntermediaryInfo {
-        private final String maven;
-        private final String version;
-        private final boolean stable;
-
-        public IntermediaryInfo(String maven, String version, boolean stable) {
-            this.maven = maven;
-            this.version = version;
-            this.stable = stable;
-        }
-
-        public String getMaven() {
-            return maven;
-        }
-
-        public String getVersion() {
-            return version;
-        }
-
-        public boolean isStable() {
-            return stable;
-        }
+    public record IntermediaryInfo(String maven, String version, boolean stable) {
     }
 }
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/fabric/FabricVersionList.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/fabric/FabricVersionList.java
index b71a7fb300a..262b36ba12f 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/fabric/FabricVersionList.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/fabric/FabricVersionList.java
@@ -68,39 +68,17 @@ public Task<?> refreshAsync() {
     private List<String> getGameVersions(String metaUrl) throws IOException {
         String json = NetworkUtils.doGet(downloadProvider.injectURLWithCandidates(metaUrl));
         return JsonUtils.GSON.fromJson(json, listTypeOf(GameVersion.class))
-                .stream().map(GameVersion::getVersion).collect(Collectors.toList());
+                .stream().map(GameVersion::version).collect(Collectors.toList());
     }
 
     private static String getLaunchMetaUrl(String gameVersion, String loaderVersion) {
         return String.format("https://meta.fabricmc.net/v2/versions/loader/%s/%s", gameVersion, loaderVersion);
     }
 
-    private static class GameVersion {
-        private final String version;
-        private final String maven;
-        private final boolean stable;
+    private record GameVersion(String version, @Nullable String maven, boolean stable) {
 
-        public GameVersion() {
-            this("", null, false);
-        }
-
-        public GameVersion(String version, String maven, boolean stable) {
-            this.version = version;
-            this.maven = maven;
-            this.stable = stable;
-        }
-
-        public String getVersion() {
-            return version;
-        }
-
-        @Nullable
-        public String getMaven() {
-            return maven;
-        }
-
-        public boolean isStable() {
-            return stable;
+        GameVersion {
+            if (version == null) version = "";
         }
     }
 }
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/legacyfabric/LegacyFabricInstallTask.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/legacyfabric/LegacyFabricInstallTask.java
index f2abb9c33a6..5a0fbfc5599 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/legacyfabric/LegacyFabricInstallTask.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/legacyfabric/LegacyFabricInstallTask.java
@@ -80,7 +80,7 @@ public void execute() {
     }
 
     private Version getPatch(FabricInstallTask.FabricInfo legacyFabricInfo, String gameVersion, String loaderVersion) {
-        JsonObject launcherMeta = legacyFabricInfo.getLauncherMeta();
+        JsonObject launcherMeta = legacyFabricInfo.launcherMeta();
         Arguments arguments = new Arguments();
 
         String mainClass;
@@ -107,8 +107,8 @@ private Version getPatch(FabricInstallTask.FabricInfo legacyFabricInfo, String g
         }
 
         // libraries.add(new Library(Artifact.fromDescriptor(legacyFabricInfo.hashed.maven), getMavenRepositoryByGroup(legacyFabricInfo.hashed.maven), null));
-        libraries.add(new Library(Artifact.fromDescriptor(legacyFabricInfo.getIntermediary().getMaven()), getMavenRepositoryByGroup(legacyFabricInfo.getIntermediary().getMaven()), null));
-        libraries.add(new Library(Artifact.fromDescriptor(legacyFabricInfo.getLoader().getMaven()), getMavenRepositoryByGroup(legacyFabricInfo.getLoader().getMaven()), null));
+        libraries.add(new Library(Artifact.fromDescriptor(legacyFabricInfo.intermediary().maven()), getMavenRepositoryByGroup(legacyFabricInfo.intermediary().maven()), null));
+        libraries.add(new Library(Artifact.fromDescriptor(legacyFabricInfo.loader().maven()), getMavenRepositoryByGroup(legacyFabricInfo.loader().maven()), null));
 
         return new Version(LibraryAnalyzer.LibraryType.LEGACY_FABRIC.getPatchId(), loaderVersion, Version.PRIORITY_LOADER, arguments, mainClass, libraries);
     }
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/legacyfabric/LegacyFabricVersionList.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/legacyfabric/LegacyFabricVersionList.java
index 4236cb0640c..134c43b2ad8 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/legacyfabric/LegacyFabricVersionList.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/legacyfabric/LegacyFabricVersionList.java
@@ -71,7 +71,7 @@ public Task<?> refreshAsync() {
     private List<String> getGameVersions(String metaUrl) throws IOException {
         String json = NetworkUtils.doGet(downloadProvider.injectURLWithCandidates(metaUrl));
         return JsonUtils.GSON.fromJson(json, listTypeOf(GameVersion.class))
-                .stream().map(GameVersion::getVersion).collect(Collectors.toList());
+                .stream().map(GameVersion::version).collect(Collectors.toList());
     }
 
     private static String normalizeVersion(String version) {
@@ -84,32 +84,10 @@ private static String getLaunchMetaUrl(String gameVersion, String loaderVersion)
         return String.format("https://meta.legacyfabric.net/v2/versions/loader/%s/%s", gameVersion, loaderVersion);
     }
 
-    private static class GameVersion {
-        private final String version;
-        private final String maven;
-        private final boolean stable;
+    private record GameVersion(String version, @Nullable String maven, boolean stable) {
 
-        public GameVersion() {
-            this("", null, false);
-        }
-
-        public GameVersion(String version, String maven, boolean stable) {
-            this.version = version;
-            this.maven = maven;
-            this.stable = stable;
-        }
-
-        public String getVersion() {
-            return version;
-        }
-
-        @Nullable
-        public String getMaven() {
-            return maven;
-        }
-
-        public boolean isStable() {
-            return stable;
+        GameVersion {
+            if (version == null) version = "";
         }
     }
 }
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/quilt/QuiltInstallTask.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/quilt/QuiltInstallTask.java
index 01642cecf0d..f89df7631d7 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/quilt/QuiltInstallTask.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/quilt/QuiltInstallTask.java
@@ -137,89 +137,14 @@ private static String getMavenRepositoryByGroup(String maven) {
     }
 
     @JsonSerializable
-    public static class QuiltInfo {
-        private final LoaderInfo loader;
-        private final IntermediaryInfo hashed;
-        private final IntermediaryInfo intermediary;
-        private final JsonObject launcherMeta;
-
-        public QuiltInfo(LoaderInfo loader, IntermediaryInfo hashed, IntermediaryInfo intermediary, JsonObject launcherMeta) {
-            this.loader = loader;
-            this.hashed = hashed;
-            this.intermediary = intermediary;
-            this.launcherMeta = launcherMeta;
-        }
-
-        public LoaderInfo getLoader() {
-            return loader;
-        }
-
-        public IntermediaryInfo getHashed() {
-            return hashed;
-        }
-
-        public IntermediaryInfo getIntermediary() {
-            return intermediary;
-        }
-
-        public JsonObject getLauncherMeta() {
-            return launcherMeta;
-        }
+    public record QuiltInfo(LoaderInfo loader, IntermediaryInfo hashed, IntermediaryInfo intermediary, JsonObject launcherMeta) {
     }
 
     @JsonSerializable
-    public static class LoaderInfo {
-        private final String separator;
-        private final int build;
-        private final String maven;
-        private final String version;
-        private final boolean stable;
-
-        public LoaderInfo(String separator, int build, String maven, String version, boolean stable) {
-            this.separator = separator;
-            this.build = build;
-            this.maven = maven;
-            this.version = version;
-            this.stable = stable;
-        }
-
-        public String getSeparator() {
-            return separator;
-        }
-
-        public int getBuild() {
-            return build;
-        }
-
-        public String getMaven() {
-            return maven;
-        }
-
-        public String getVersion() {
-            return version;
-        }
-
-        public boolean isStable() {
-            return stable;
-        }
+    public record LoaderInfo(String separator, int build, String maven, String version, boolean stable) {
     }
 
     @JsonSerializable
-    public static class IntermediaryInfo {
-        private final String maven;
-        private final String version;
-
-        public IntermediaryInfo(String maven, String version) {
-            this.maven = maven;
-            this.version = version;
-        }
-
-        public String getMaven() {
-            return maven;
-        }
-
-        public String getVersion() {
-            return version;
-        }
+    public record IntermediaryInfo(String maven, String version) {
     }
 }
diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/quilt/QuiltVersionList.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/quilt/QuiltVersionList.java
index c33d0acf0ab..34ec84e8c46 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/quilt/QuiltVersionList.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/quilt/QuiltVersionList.java
@@ -68,39 +68,17 @@ public Task<?> refreshAsync() {
     private List<String> getGameVersions(String metaUrl) throws IOException {
         String json = NetworkUtils.doGet(downloadProvider.injectURLWithCandidates(metaUrl));
         return JsonUtils.GSON.fromJson(json, listTypeOf(GameVersion.class))
-                .stream().map(GameVersion::getVersion).collect(Collectors.toList());
+                .stream().map(GameVersion::version).collect(Collectors.toList());
     }
 
     private static String getLaunchMetaUrl(String gameVersion, String loaderVersion) {
         return String.format("https://meta.quiltmc.org/v3/versions/loader/%s/%s", gameVersion, loaderVersion);
     }
 
-    private static class GameVersion {
-        private final String version;
-        private final String maven;
-        private final boolean stable;
+    private record GameVersion(String version, @Nullable String maven, boolean stable) {
 
-        public GameVersion() {
-            this("", null, false);
-        }
-
-        public GameVersion(String version, String maven, boolean stable) {
-            this.version = version;
-            this.maven = maven;
-            this.stable = stable;
-        }
-
-        public String getVersion() {
-            return version;
-        }
-
-        @Nullable
-        public String getMaven() {
-            return maven;
-        }
-
-        public boolean isStable() {
-            return stable;
+        GameVersion {
+            if (version == null) version = "";
         }
     }
 }