Spring Example: Injected Method Implementation

package packageA;

import java.lang.reflect.Method;
import org.springframework.beans.factory.support.MethodReplacer;

public class WinnerInEnvelop implements MethodReplacer
{
   public Object reimplement(Object arg0, Method arg1, Object[] arg2) throws Throwable 
   {
      System.out.println("Samuel Bolun Liu");
      return null;
   }
}