Bizarre error in AOP - @After cannot be an AspectJ annotation.

[ankeet.maini]

The ERROR

Dec 17, 2011 7:15:38 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@13f0c45f: startup date [Sat Dec 17 19:15:38 IST 2011]; root of context hierarchy
Dec 17, 2011 7:15:38 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [AOP.xml]
Dec 17, 2011 7:15:39 PM org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
INFO: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@5054a835: defining beans [org.springframework.aop.config.internalAutoProxyCreator,businessLogic,aopAspect]; root of factory hierarchy
Dec 17, 2011 7:15:39 PM org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons
INFO: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@5054a835: defining beans [org.springframework.aop.config.internalAutoProxyCreator,businessLogic,aopAspect]; root of factory hierarchy
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'businessLogic' defined in class path resource [AOP.xml]: BeanPostProcessor before instantiation of bean failed; nested exception is java.lang.IllegalArgumentException: @org.aspectj.lang.annotation.After(value=aspectOperations()) cannot be an AspectJ annotation
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:452)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:192)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
	at ankeet.spring.tester.Tester.main(Tester.java:20)
Caused by: java.lang.IllegalArgumentException: @org.aspectj.lang.annotation.After(value=aspectOperations()) cannot be an AspectJ annotation
	at org.springframework.aop.aspectj.annotation.AbstractAspectJAdvisorFactory$AspectJAnnotation.<init>(AbstractAspectJAdvisorFactory.java:250)
	at org.springframework.aop.aspectj.annotation.AbstractAspectJAdvisorFactory.findAnnotation(AbstractAspectJAdvisorFactory.java:88)
	at org.springframework.aop.aspectj.annotation.AbstractAspectJAdvisorFactory.findAspectJAnnotationOnMethod(AbstractAspectJAdvisorFactory.java:77)
	at org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory.getPointcut(ReflectiveAspectJAdvisorFactory.java:140)
	at org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory.getAdvisor(ReflectiveAspectJAdvisorFactory.java:130)
	at org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory$1.doWith(ReflectiveAspectJAdvisorFactory.java:74)
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:452)
	at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:430)
	at org.springframework.aop.aspectj.annotation.ReflectiveAspectJAdvisorFactory.getAdvisors(ReflectiveAspectJAdvisorFactory.java:70)
	at org.springframework.aop.aspectj.annotation.BeanFactoryAspectJAdvisorsBuilder.buildAspectJAdvisors(BeanFactoryAspectJAdvisorsBuilder.java:109)
	at org.springframework.aop.aspectj.annotation.AnnotationAwareAspectJAutoProxyCreator.findCandidateAdvisors(AnnotationAwareAspectJAutoProxyCreator.java:86)
	at org.springframework.aop.aspectj.autoproxy.AspectJAwareAdvisorAutoProxyCreator.shouldSkip(AspectJAwareAdvisorAutoProxyCreator.java:107)
	at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessBeforeInstantiation(AbstractAutoProxyCreator.java:278)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:848)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.resolveBeforeInstantiation(AbstractAutowireCapableBeanFactory.java:820)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:446)
	... 10 more
Caused by: java.lang.NoSuchMethodException: $Proxy4.argNames()
	at java.lang.Class.getMethod(Class.java:1622)
	at org.springframework.aop.aspectj.annotation.AbstractAspectJAdvisorFactory$AspectJAnnotation.<init>(AbstractAspectJAdvisorFactory.java:247)
	... 25 more

I'm just trying to run a simple aspect on calling of a method.
The Method

package ankeet.spring.business;

public class BusinessLogic {
	
	public void iDontKnowAboutAspects() {
		System.out.println("Start of function.");
		System.out.println("This is a Dummy function.");
		System.out.println("End of function.");
	}
}

The Aspect

/**
 * 
 */
package ankeet.spring.aop;

import java.util.Arrays;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;


/**
 * @author Ankeet Maini
 *
 */
@Aspect
public class AOPAspect {
	
	@SuppressWarnings("unused")
	@Pointcut("execution(* *.*(..))")
	private void aspectOperations(){}
	
	@Before(value = "aspectOperations()")
	public void before(JoinPoint joinPoint) {

		System.out.println("This is Before advice");
	}
	
	@After(value = "aspectOperations()")
	public void after(JoinPoint joinPoint) {

		System.out.println("This is After advice");
	}
}

The main Class

/**
 * 
 */
package ankeet.spring.tester;

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

import ankeet.spring.business.BusinessLogic;


/**
 * @author ankeet
 *
 */
public class Tester {
	
	public static void main(String[] args) {
		//Loading "AOP.xml"
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("AOP.xml");
		//Getting bean from the application context.
		BusinessLogic businessLogic = (BusinessLogic) applicationContext.getBean("businessLogic");
		//Calling the function -> iDontKnowAboutAspects()
		businessLogic.iDontKnowAboutAspects();
	}
}

AOP.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" 
	xmlns:p="http://www.springframework.org/schema/p"
	xmlns:util="http://www.springframework.org/schema/util"
	xmlns:aop="http://www.springframework.org/schema/aop" 
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd"> 

	<aop:aspectj-autoproxy />
	
	 <bean id="businessLogic" class="ankeet.spring.business.BusinessLogic" />
   <bean id="aopAspect" class="ankeet.spring.aop.AOPAspect"/>
</beans>

Please help me in rectifying this. Have been stuck since quite a while.

[amiladomingo]

I tired your code and it works perfectly fine.