MethodReplace not working in Spring

Question

I'm trying to replace a calcInt method in Bank class with a new method in a new Class NewCalcInt.java. But I'm not able to do that. Help me to
solve this. I have added all the JAR's along with cglib-nodep-2.1.3 jar.

This is the following code Bank.java

package beans;

 public class Bank {
     public void deposit() {
         System.out.println("Deposit Method in Bank");
     }
     public void withdraw() {
         System.out.println("Withdraw Method in Bank");
     }
     public void calcInt() {
         System.out.println("CalcInt Method in Bank");
     }
 }

The following program is NewCalcInt.java

NewCalcInt.java

package beans;

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

 public class NewCalcInt implements MethodReplacer {
    public Object reimplement(Object o, Method m, Object[] arg2) throws
    Throwable {

        System.out.println("NewCalcInt class new CalInt imp");
        return o;
    }
}

The following code is spring.xml spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd" >
    <bean id="b" class="beans.Bank">
        <replaced-method name="calcInt" replacer="nc"></replaced-method>
    </bean>
    <bean id="nc" class="beans.NewCalcInt"></bean>
</beans>

The following code is ClientApp.java ClientApp.java

 package beans;

 import org.springframework.context.ApplicationContext;
 import org.springframework.context.support.ClassPathXmlApplicationContext;

 public class ClientApp {
     public static void main(String[] args) {

         ApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
         Bank b = (Bank) context.getBean("b");
         b.deposit();
         b.withdraw();
         b.deposit();
     }
 }

I have already add the JARs