diff --git a/notes/设计模式 - 适配器.md b/notes/设计模式 - 适配器.md
index 98bd3877..9ab96a86 100644
--- a/notes/设计模式 - 适配器.md	
+++ b/notes/设计模式 - 适配器.md	
@@ -63,7 +63,6 @@ public class Client {
 - [java.util.Arrays#asList()](http://docs.oracle.com/javase/8/docs/api/java/util/Arrays.html#asList%28T...%29)
 - [java.util.Collections#list()](https://docs.oracle.com/javase/8/docs/api/java/util/Collections.html#list-java.util.Enumeration-)
 - [java.util.Collections#enumeration()](https://docs.oracle.com/javase/8/docs/api/java/util/Collections.html#enumeration-java.util.Collection-)
-- [javax.xml.bind.annotation.adapters.XMLAdapter](http://docs.oracle.com/javase/8/docs/api/javax/xml/bind/annotation/adapters/XmlAdapter.html#marshal-BoundType-)
 
 ## 参考资料