Java [Java/DynamicProxy] 라이브러리와 DecoratorPattern 을 이용하여 AOP 적인 구현이 가능. Java 1.3 이후부터 지원.

 * Generic caching decorator(See DecoratorPattern) - [http://www.onjava.com/pub/a/onjava/2003/08/20/memoization.html Memoization in Java Using Dynamic Proxy Classes], and [http://roller.anthonyeden.com/page/SKI_BUM/20030810#dynamicproxy_net#dynamicproxy_net .NET equivalent]
 * [http://www-128.ibm.com/developerworks/library-combined/j-dynproxies.html Decoupling validation logic]