diff --git a/notify-core/src/main/java/com/cicdi/notify/DefaultNotifierManager.java b/notify-core/src/main/java/com/cicdi/notify/AbstractNotifierManager.java
similarity index 92%
rename from notify-core/src/main/java/com/cicdi/notify/DefaultNotifierManager.java
rename to notify-core/src/main/java/com/cicdi/notify/AbstractNotifierManager.java
index 103308b..a2bc75e 100644
--- a/notify-core/src/main/java/com/cicdi/notify/DefaultNotifierManager.java
+++ b/notify-core/src/main/java/com/cicdi/notify/AbstractNotifierManager.java
@@ -8,7 +8,7 @@ import java.util.concurrent.ConcurrentHashMap;
 /**
  * @author xueye
  */
-public class DefaultNotifierManager implements NotifierManager {
+public abstract class AbstractNotifierManager implements NotifierManager {
     private final Map<String, Map<String, NotifierProvider>> providers = new ConcurrentHashMap<>();
 
     private Map<String, Notifier> notifiers = new ConcurrentHashMap<>();
@@ -17,7 +17,7 @@ public class DefaultNotifierManager implements NotifierManager {
 
 //    private EventBus eventBus;
 
-    public DefaultNotifierManager(NotifyConfigManager manager/*, EventBus eventBus*/) {
+    public AbstractNotifierManager(NotifyConfigManager manager/*, EventBus eventBus*/) {
         this.configManager = manager;
 //        this.eventBus = eventBus;
     }
diff --git a/notify-dingtalk/src/test/java/com/cicdi/notify/dingtalk/DingTalkTest.java b/notify-dingtalk/src/test/java/com/cicdi/notify/dingtalk/DingTalkTest.java
index 85c15d8..07c473e 100644
--- a/notify-dingtalk/src/test/java/com/cicdi/notify/dingtalk/DingTalkTest.java
+++ b/notify-dingtalk/src/test/java/com/cicdi/notify/dingtalk/DingTalkTest.java
@@ -54,7 +54,7 @@ public class DingTalkTest {
             }
         };
 
-        NotifierManager notifierManager = new DefaultNotifierManager(notifyConfigManager);
+        NotifierManager notifierManager = new AbstractNotifierManager(notifyConfigManager){};
 
         // register
         DingTalkNotifierProvider provider = new DingTalkNotifierProvider(templateManager);
diff --git a/notify-email/src/test/java/com/cicdi/notify/email/DefaultEmailTest.java b/notify-email/src/test/java/com/cicdi/notify/email/DefaultEmailTest.java
index 65645a1..0f57b72 100644
--- a/notify-email/src/test/java/com/cicdi/notify/email/DefaultEmailTest.java
+++ b/notify-email/src/test/java/com/cicdi/notify/email/DefaultEmailTest.java
@@ -61,7 +61,7 @@ public class DefaultEmailTest {
             }
         };
 
-        NotifierManager notifierManager = new DefaultNotifierManager(notifyConfigManager);
+        NotifierManager notifierManager = new AbstractNotifierManager(notifyConfigManager){};
         DefaultEmailNotifierProvider defaultEmailNotifierProvider = new DefaultEmailNotifierProvider(templateManager);
         // register
         notifierManager.registerProvider(defaultEmailNotifierProvider);
diff --git a/notify-sms/src/test/java/com/cicdi/notify/sms/AliyunSmsTest.java b/notify-sms/src/test/java/com/cicdi/notify/sms/AliyunSmsTest.java
index 0a2e597..859fba4 100644
--- a/notify-sms/src/test/java/com/cicdi/notify/sms/AliyunSmsTest.java
+++ b/notify-sms/src/test/java/com/cicdi/notify/sms/AliyunSmsTest.java
@@ -8,7 +8,6 @@ import com.cicdi.notify.template.TemplateManager;
 import com.cicdi.notify.template.TemplateProperties;
 import org.junit.Test;
 
-import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -53,7 +52,7 @@ public class AliyunSmsTest {
             }
         };
 
-        NotifierManager notifierManager = new DefaultNotifierManager(notifyConfigManager);
+        NotifierManager notifierManager = new AbstractNotifierManager(notifyConfigManager){};
         AliyunSmsNotifierProvider aliyunSmsNotifierProvider = new AliyunSmsNotifierProvider(templateManager);
         // register
         notifierManager.registerProvider(aliyunSmsNotifierProvider);
diff --git a/notify-sms/src/test/java/com/cicdi/notify/sms/TelecomSmsTest.java b/notify-sms/src/test/java/com/cicdi/notify/sms/TelecomSmsTest.java
index e0f7460..c7a75b2 100644
--- a/notify-sms/src/test/java/com/cicdi/notify/sms/TelecomSmsTest.java
+++ b/notify-sms/src/test/java/com/cicdi/notify/sms/TelecomSmsTest.java
@@ -52,7 +52,7 @@ public class TelecomSmsTest {
             }
         };
 
-        NotifierManager notifierManager = new DefaultNotifierManager(notifyConfigManager);
+        NotifierManager notifierManager = new AbstractNotifierManager(notifyConfigManager){};
 
         // register
         AliyunSmsNotifierProvider aliyunSmsNotifierProvider = new AliyunSmsNotifierProvider(templateManager);
diff --git a/notify-wechat/src/test/java/com/cicdi/notify/wechat/WechatTest.java b/notify-wechat/src/test/java/com/cicdi/notify/wechat/WechatTest.java
index 0b63ee6..1205b3b 100644
--- a/notify-wechat/src/test/java/com/cicdi/notify/wechat/WechatTest.java
+++ b/notify-wechat/src/test/java/com/cicdi/notify/wechat/WechatTest.java
@@ -54,7 +54,7 @@ public class WechatTest {
             }
         };
 
-        NotifierManager notifierManager = new DefaultNotifierManager(notifyConfigManager);
+        NotifierManager notifierManager = new AbstractNotifierManager(notifyConfigManager){};
 
         // register
         WechatNotifierProvider provider = new WechatNotifierProvider(templateManager);