diff --git a/hamster-core-bukkit/src/main/java/cn/hamster3/mc/plugin/core/bukkit/util/SerializeUtils.java b/hamster-core-bukkit/src/main/java/cn/hamster3/mc/plugin/core/bukkit/util/BukkitSerializeUtils.java
similarity index 97%
rename from hamster-core-bukkit/src/main/java/cn/hamster3/mc/plugin/core/bukkit/util/SerializeUtils.java
rename to hamster-core-bukkit/src/main/java/cn/hamster3/mc/plugin/core/bukkit/util/BukkitSerializeUtils.java
index 950518e..377ccc9 100644
--- a/hamster-core-bukkit/src/main/java/cn/hamster3/mc/plugin/core/bukkit/util/SerializeUtils.java
+++ b/hamster-core-bukkit/src/main/java/cn/hamster3/mc/plugin/core/bukkit/util/BukkitSerializeUtils.java
@@ -15,8 +15,8 @@ import java.io.IOException;
 import java.util.logging.Level;
 
 @SuppressWarnings("unused")
-public final class SerializeUtils {
-    private SerializeUtils() {
+public final class BukkitSerializeUtils {
+    private BukkitSerializeUtils() {
     }
 
     @Nullable
diff --git a/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/data/DisplayMessage.java b/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/data/DisplayMessage.java
index 20f7ef6..d4196f2 100644
--- a/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/data/DisplayMessage.java
+++ b/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/data/DisplayMessage.java
@@ -1,6 +1,5 @@
 package cn.hamster3.mc.plugin.core.common.data;
 
-import cn.hamster3.mc.plugin.core.common.constant.CoreConstantObjects;
 import cn.hamster3.mc.plugin.core.common.util.SerializeUtils;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
@@ -295,6 +294,6 @@ public class DisplayMessage {
 
     @Override
     public String toString() {
-        return CoreConstantObjects.GSON.toJson(this);
+        return saveToJson().toString();
     }
 }
diff --git a/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/util/CommonUtils.java b/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/util/CommonUtils.java
index 2625a11..9f85f96 100644
--- a/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/util/CommonUtils.java
+++ b/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/util/CommonUtils.java
@@ -8,6 +8,7 @@ import java.io.IOException;
 import java.nio.file.Files;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
@@ -64,10 +65,7 @@ public final class CommonUtils {
      */
     @NotNull
     public static String replaceColorCode(@Nullable String string, @NotNull String defaultValue) {
-        if (string == null) {
-            return replaceColorCode(defaultValue);
-        }
-        return replaceColorCode(string);
+        return replaceColorCode(Objects.requireNonNullElse(string, defaultValue));
     }
 
     /**
diff --git a/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/util/SerializeUtils.java b/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/util/SerializeUtils.java
index e84da98..e78588b 100644
--- a/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/util/SerializeUtils.java
+++ b/hamster-core-common/src/main/java/cn/hamster3/mc/plugin/core/common/util/SerializeUtils.java
@@ -1,10 +1,8 @@
 package cn.hamster3.mc.plugin.core.common.util;
 
-import cn.hamster3.mc.plugin.core.common.constant.CoreConstantObjects;
 import com.google.gson.JsonObject;
 import net.kyori.adventure.key.Key;
 import net.kyori.adventure.sound.Sound;
-import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.serializer.gson.GsonComponentSerializer;
 import net.kyori.adventure.title.Title;
 import org.jetbrains.annotations.NotNull;
@@ -46,8 +44,8 @@ public final class SerializeUtils {
     public static Title deserializeTitle(@NotNull JsonObject object) {
         if (object.has("times")) {
             return Title.title(
-                    CoreConstantObjects.GSON.fromJson(object.get("title"), Component.class),
-                    CoreConstantObjects.GSON.fromJson(object.get("subtitle"), Component.class),
+                    GsonComponentSerializer.gson().deserializeFromTree(object.get("title")),
+                    GsonComponentSerializer.gson().deserializeFromTree(object.get("subtitle")),
                     deserializeTitleTimes(object.getAsJsonObject("times"))
             );
         } else {