diff --git "a/docs/java/new-features/Java8\346\226\260\347\211\271\346\200\247\346\200\273\347\273\223.md" "b/docs/java/new-features/Java8\346\226\260\347\211\271\346\200\247\346\200\273\347\273\223.md"
index e5a87f0b341..e2a1a4aaa0f 100644
--- "a/docs/java/new-features/Java8\346\226\260\347\211\271\346\200\247\346\200\273\347\273\223.md"
+++ "b/docs/java/new-features/Java8\346\226\260\347\211\271\346\200\247\346\200\273\347\273\223.md"
@@ -872,6 +872,7 @@ System.out.println(string);     // Nov 03, 2014 - 07:13
 首先定义一个包装类Hints注解用来放置一组具体的Hint注解：
 
 ```java
+@Retention(RetentionPolicy.RUNTIME)
 @interface Hints {
     Hint[] value();
 }