diff --git a/skywalking-api/src/main/java/com/ai/cloud/skywalking/plugin/interceptor/EnhanceClazz4Interceptor.java b/skywalking-api/src/main/java/com/ai/cloud/skywalking/plugin/interceptor/EnhanceClazz4Interceptor.java
index dea537914..6fa971f64 100644
--- a/skywalking-api/src/main/java/com/ai/cloud/skywalking/plugin/interceptor/EnhanceClazz4Interceptor.java
+++ b/skywalking-api/src/main/java/com/ai/cloud/skywalking/plugin/interceptor/EnhanceClazz4Interceptor.java
@@ -41,6 +41,7 @@ public class EnhanceClazz4Interceptor {
 		
 		String enhanceOriginClassName = define.getBeInterceptedClassName();
 		/**
+		 * rename origin class <br/>
 		 * add '$$Origin' at the end of be enhanced classname <br/>
 		 * such as: class com.ai.cloud.TestClass to class com.ai.cloud.TestClass$$Origin
 		 */
@@ -53,11 +54,11 @@ public class EnhanceClazz4Interceptor {
 						ClassLoadingStrategy.Default.INJECTION).getLoaded();
 		
 		/**
+		 * TODO: need to confirm
 		 * define class as origin class name. and inject to classloader. <br/>
 		 * new class need:<br/>
-		 * 1.implement com.ai.cloud.skywalking.plugin.interceptor.IEnhancedClassInstanceContext();  <br/>
-		 * 2.add field '_$EnhancedClassInstanceContext' of type EnhancedClassInstanceContext
-		 * 3.intercept constructor and method if required by interceptorDefineClass
+		 * 1.add field '_$EnhancedClassInstanceContext' of type EnhancedClassInstanceContext <br/>
+		 * 2.intercept constructor and method if required by interceptorDefineClass. use '@FieldValue' get '_$EnhancedClassInstanceContext' ref<br/>
 		 */
 	}
 }
diff --git a/skywalking-api/src/main/java/com/ai/cloud/skywalking/plugin/interceptor/IEnhancedClassInstanceContext.java b/skywalking-api/src/main/java/com/ai/cloud/skywalking/plugin/interceptor/IEnhancedClassInstanceContext.java
deleted file mode 100644
index fa7fccd50..000000000
--- a/skywalking-api/src/main/java/com/ai/cloud/skywalking/plugin/interceptor/IEnhancedClassInstanceContext.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package com.ai.cloud.skywalking.plugin.interceptor;
-
-/**
- * 被增强的类,会实现此接口，用于快速获取实例级属性上下文扩展<br/>
- * @see com.ai.cloud.skywalking.plugin.interceptor.EnhanceClazz4Interceptor.enhance0()
- * 
- * @author wusheng
- *
- */
-public interface IEnhancedClassInstanceContext {
-	public EnhancedClassInstanceContext getEnhancedClassInstanceContext();
-}