diff --git a/src/main/java/im/zhaojun/zfile/common/util/ClassUtils.java b/src/main/java/im/zhaojun/zfile/common/util/ClassUtils.java
index dc27f3c..f88d095 100644
--- a/src/main/java/im/zhaojun/zfile/common/util/ClassUtils.java
+++ b/src/main/java/im/zhaojun/zfile/common/util/ClassUtils.java
@@ -1,6 +1,6 @@
 package im.zhaojun.zfile.common.util;
 
-import sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl;
+import java.lang.reflect.ParameterizedType;
 
 import java.lang.reflect.Type;
 
@@ -21,8 +21,8 @@ public class ClassUtils {
 	 */
 	public static Class<?> getClassFirstGenericsParam(Class<?> clazz) {
 		Type genericSuperclass = clazz.getGenericSuperclass();
-		Type actualTypeArgument = ((ParameterizedTypeImpl) genericSuperclass).getActualTypeArguments()[0];
+		Type actualTypeArgument = ((ParameterizedType) genericSuperclass).getActualTypeArguments()[0];
 		return (Class<?>) actualTypeArgument;
 	}
 
-}
\ No newline at end of file
+}