build: 优化依赖

core-common/src/main/java/cn/hamster3/mc/plugin/core/common/api/CoreAPI.java

@@ -1,6 +1,7 @@
 package cn.hamster3.mc.plugin.core.common.api;
 
 import com.google.gson.Gson;
+import lombok.Getter;
 import net.kyori.adventure.platform.AudienceProvider;
 import org.jetbrains.annotations.NotNull;
 
@@ -12,12 +13,9 @@ import java.util.concurrent.ScheduledExecutorService;
 
 @SuppressWarnings("unused")
 public abstract class CoreAPI {
+    @Getter
     protected static CoreAPI instance;
 
-    public static CoreAPI getInstance() {
-        return instance;
-    }
-
     @NotNull
     public abstract AudienceProvider getAudienceProvider();
 
@@ -32,20 +30,24 @@ public abstract class CoreAPI {
     /**
      * @return GSON 工具
      */
+    @NotNull
     public abstract Gson getGson();
 
     /**
      * @return GSON 工具，会使用格式化输出、且解析中包含null参数
      */
+    @NotNull
     public abstract Gson getHumanGson();
 
     /**
      * @return 异步线程池
      */
+    @NotNull
     public abstract ExecutorService getExecutorService();
 
     /**
      * @return 调度器线程池
      */
+    @NotNull
     public abstract ScheduledExecutorService getScheduledExecutorService();
 }