diff --git a/protocol/src/test/java/com/zfoo/protocol/packet/SimpleObject.java b/protocol/src/test/java/com/zfoo/protocol/packet/SimpleObject.java
index d41b117c..9711450b 100644
--- a/protocol/src/test/java/com/zfoo/protocol/packet/SimpleObject.java
+++ b/protocol/src/test/java/com/zfoo/protocol/packet/SimpleObject.java
@@ -14,24 +14,19 @@
 package com.zfoo.protocol.packet;
 
 import com.zfoo.protocol.IPacket;
+import com.zfoo.protocol.registration.anno.Protocol;
 
 /**
  * @author godotg
  * @version 3.0
  */
+@Protocol(id = 104)
 public class SimpleObject implements IPacket {
 
-    public static final transient short PROTOCOL_ID = 104;
-
     private int c;
 
     private boolean g;
 
-    @Override
-    public short protocolId() {
-        return PROTOCOL_ID;
-    }
-
     public int getC() {
         return c;
     }