java.lang.IllegalArgumentException: warning no match for this type name: UserDaoImpl [Xlint:invalidAbsoluteTypeName]

Question

I am developing a Spring 3.0.2 based project. From last three days it is showing the below error.

java.lang.IllegalArgumentException: warning no match for this type name: UserDaoImpl [Xlint:invalidAbsoluteTypeName]

How do I solve this error?

My applicationContext file is:

<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:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context.xsd
            http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/aop
            http://www.springframework.org/schema/aop/spring-aop.xsd">

        <aop:aspectj-autoproxy/>
        <context:component-scan base-package="web"/>
<!--        <import resource="appicationContext.xml"/>        -->

    <bean id="viewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver"
          p:prefix="jsp/" p:suffix=".jsp" />  

    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />

    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />


        <bean id="sessionFactory" class="hibernatefiles.HibernateUtil" factory-method="getSessionFactory"/>           

        <bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
                <property name="sessionFactory" ref="sessionFactory"/>
        </bean>

        <bean id="userDaoImpl"  class="dao.UserDaoImpl"/>

        <bean id = "profiler" class = "Profiler.AspectProfiler" />

     <bean name="/userRegistration.htm" class="web.UserController" depends-on="userDaoImpl">
            <property name="userDaoImpl" ref="userDaoImp"/>       
     </bean>       
</beans>

The stack trace is:

   org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController' defined in file [D:\JAVA Stuffs\projects\NewSpringDemo\build\web\WEB-INF\classes\web\UserController.class]: Initialization of bean failed; nested exception is java.lang.IllegalArgumentException: warning no match for this type name: **UserDaoImpl [Xlint:invalidAbsoluteTypeName]**
        org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
        org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
        org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
        org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
        org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
        org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:563)
        org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:872)
        org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:423)
        org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:442)
        org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:458)
        org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:339)
        org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:306)
        org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127)
        javax.servlet.GenericServlet.init(GenericServlet.java:160)
        org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:498)
        org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
        org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
        org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:394)
        org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
        org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
        org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
        java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        java.lang.Thread.run(Thread.java:662)
    root cause

    java.lang.IllegalArgumentException: warning no match for this type name: UserDaoImpl [Xlint:invalidAbsoluteTypeName]
        org.aspectj.weaver.tools.PointcutParser.parsePointcutExpression(PointcutParser.java:315)
        org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:204)
        org.springframework.aop.aspectj.AspectJExpressionPointcut.checkReadyToMatch(AspectJExpressionPointcut.java:191)
        org.springframework.aop.aspectj.AspectJExpressionPointcut.getClassFilter(AspectJExpressionPointcut.java:172)
        org.springframework.aop.support.AopUtils.canApply(AopUtils.java:200)
        org.springframework.aop.support.AopUtils.canApply(AopUtils.java:254)
        org.springframework.aop.support.AopUtils.findAdvisorsThatCanApply(AopUtils.java:286)
        org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findAdvisorsThatCanApply(AbstractAdvisorAutoProxyCreator.java:117)
        org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:87)
        org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:68)
        org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:359)
        org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:322)
        org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:407)
        org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1418)
        org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
        org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
        org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
        org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
        org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
        org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:563)
        org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:872)
        org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:423)
        org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:442)
        org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:458)
        org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:339)
        org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:306)
        org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127)
        javax.servlet.GenericServlet.init(GenericServlet.java:160)
        org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:498)
        org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
        org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
        org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:394)
        org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
        org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
        org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
        java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        java.lang.Thread.run(Thread.java:662)
...

The userDaoImpl is autowired in UserController class which is annotated with @Controller:

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package web;

import dao.UserDaoImpl;
import domain.UsersTable;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.servlet.ModelAndView;

/**
 *
 * @author amit
 */

@Controller
@RequestMapping("/userRegistration.htm")
@SessionAttributes("user")
public class UserController {

    @Autowired
    private UserDaoImpl userDaoImpl;

    public UserDaoImpl getUserDaoImpl() {
        return userDaoImpl;
    }

    public void setUserDaoImpl(UserDaoImpl userDaoImpl) {
        this.userDaoImpl = userDaoImpl;
    }   

    @RequestMapping(method = RequestMethod.GET)
    public String showForm(ModelMap model) {
        System.out.println("Get request found. . . . *****************************");
        UsersTable user = new UsersTable();
        model.addAttribute("user", user);
        return "registrationForm";
    }

    @RequestMapping(method = RequestMethod.POST)
    public ModelAndView OnSubmit(@ModelAttribute("user") UsersTable user) {
        System.out.println("User Object is : "+user);
        userDaoImpl.saveUser(user);
        return new ModelAndView("userConfirm", "user", user);
    }
}

Aspect Profiler:

package Profiler;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;

@Aspect
public class AspectProfiler {
   @Pointcut("execution(* UserDaoImpl.mySave())")
            public void insertionProfiler(){ }

    @Around("insertionProfiler()")
            public void aroundInsertionProfiler(ProceedingJoinPoint pjp) throws Throwable{
            System.out.println("Before Insertion....");
            pjp.proceed();
            System.out.println("After saving the data I am back.");
    }

}

Answer 1

I don't know why this old question popped up on my RSS feed today, but just for the record, the correct answer is that in annotation-style AspectJ pointcuts you need to use fully-qualified class names including package name, i.e. the pointcut should be

@Pointcut("execution(* dao.UserDaoImpl.mySave())")

That is what [Xlint:invalidAbsoluteTypeName] implies in the first place.

I wonder why nobody else noticed that back in 2011.

---

Update: There is one case in which you might not need to specify a fully qualified class name (FQCN): if the aspect happens to be in the exact same package as the class or annotation used in the pointcut. But that is fragile because if you ever refactor, moving around classes between packages, the aspect would still compile but its behaviour break. So you better use FQCN and let your IDE help you refactor class and package name changes in sync with aspects.