title: Make a class that implements an interface without altering the class code
body: <p>I want to make a class Toto that implements interface Titi. The common way is:</p>
  
  <pre><code>public class Toto implements Titi
  </code></pre>
  
  <p>The problem is I am autogenerating the class Toto and it 's not practical to add everytime implements Titi. Is there a way to make it implement interface in Java EE 6. (like AOP for example)
  and give me an example please</p>