Spring @Repository annotation does not work but @Service annotation does?

4
votes

I have a simple Class called BeaconDao


    package za.co.idealize.dao.impl;

    import java.util.List;

    import org.hibernate.Query;
    import org.hibernate.Session;
    import org.hibernate.SessionFactory;
    import org.hibernate.Transaction;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.stereotype.Service;
    import org.springframework.transaction.annotation.Transactional;

    import za.co.idealize.dao.BaseDao;
    import za.co.idealizeit.model.Beacon;

    @Service("beaconDao")
    public class BeaconDao extends BaseDao{

        @Autowired
        protected BeaconDao(@Qualifier("sessionFactory") SessionFactory sessionFactory) {
            super(sessionFactory, Beacon.class);

        }

        @Transactional(readOnly = true)
        @SuppressWarnings("unchecked")
        public List findByStoreID(int storeID) {
            Session session = getSession();

            Transaction tx = session.beginTransaction();
            Query q = session.createQuery(
                    "FROM Beacon b where b.storeId = :id");
            q.setParameter("id",storeID);

            List beacon = q.list();

            tx.commit();
            return beacon;
        }

        @SuppressWarnings("unchecked")
        public List findByUUID(String UUID) {
            Session session = getSession();

            Transaction tx = session.beginTransaction();

            List beacon = session.createQuery(
                    "FROM Beacon where Beacon.Uuid = " + UUID).list();
            tx.commit();
            return beacon;
        }

    }

Whenever i start my application up with the beaconDAO marked @Repository the application comes back with the following stack trace:


    SEVERE: Context initialization failed
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0' defined in class path resource [application-context.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'beaconJsonController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public za.co.idealize.dao.impl.BeaconDao za.co.idealize.controller.BeaconJsonController.beaconDao; nested exception is java.lang.IllegalArgumentException: Can not set za.co.idealize.dao.impl.BeaconDao field za.co.idealize.controller.BeaconJsonController.beaconDao to com.sun.proxy.$Proxy30
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:547)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
        at java.lang.Thread.run(Thread.java:695)
    Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'beaconJsonController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public za.co.idealize.dao.impl.BeaconDao za.co.idealize.controller.BeaconJsonController.beaconDao; nested exception is java.lang.IllegalArgumentException: Can not set za.co.idealize.dao.impl.BeaconDao field za.co.idealize.controller.BeaconJsonController.beaconDao to com.sun.proxy.$Proxy30
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:973)
        at org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler(AbstractUrlHandlerMapping.java:287)
        at org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler(AbstractUrlHandlerMapping.java:266)
        at org.springframework.web.servlet.handler.AbstractDetectingUrlHandlerMapping.detectHandlers(AbstractDetectingUrlHandlerMapping.java:82)
        at org.springframework.web.servlet.handler.AbstractDetectingUrlHandlerMapping.initApplicationContext(AbstractDetectingUrlHandlerMapping.java:58)
        at org.springframework.context.support.ApplicationObjectSupport.initApplicationContext(ApplicationObjectSupport.java:120)
        at org.springframework.web.context.support.WebApplicationObjectSupport.initApplicationContext(WebApplicationObjectSupport.java:73)
        at org.springframework.context.support.ApplicationObjectSupport.setApplicationContext(ApplicationObjectSupport.java:74)
        at org.springframework.context.support.ApplicationContextAwareProcessor.invokeAwareInterfaces(ApplicationContextAwareProcessor.java:119)
        at org.springframework.context.support.ApplicationContextAwareProcessor.postProcessBeforeInitialization(ApplicationContextAwareProcessor.java:94)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:407)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1545)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
        ... 21 more
    Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: public za.co.idealize.dao.impl.BeaconDao za.co.idealize.controller.BeaconJsonController.beaconDao; nested exception is java.lang.IllegalArgumentException: Can not set za.co.idealize.dao.impl.BeaconDao field za.co.idealize.controller.BeaconJsonController.beaconDao to com.sun.proxy.$Proxy30
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
        ... 41 more
    Caused by: java.lang.IllegalArgumentException: Can not set za.co.idealize.dao.impl.BeaconDao field za.co.idealize.controller.BeaconJsonController.beaconDao to com.sun.proxy.$Proxy30
        at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:146)
        at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:150)
        at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:63)
        at java.lang.reflect.Field.set(Field.java:657)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:504)
        ... 43 more
    Jun 24, 2014 1:30:46 AM org.apache.catalina.core.StandardContext listenerStart
    SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0' defined in class path resource [application-context.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'beaconJsonController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public za.co.idealize.dao.impl.BeaconDao za.co.idealize.controller.BeaconJsonController.beaconDao; nested exception is java.lang.IllegalArgumentException: Can not set za.co.idealize.dao.impl.BeaconDao field za.co.idealize.controller.BeaconJsonController.beaconDao to com.sun.proxy.$Proxy30
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:547)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:700)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4961)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5455)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
        at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
        at java.lang.Thread.run(Thread.java:695)
    Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'beaconJsonController': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: public za.co.idealize.dao.impl.BeaconDao za.co.idealize.controller.BeaconJsonController.beaconDao; nested exception is java.lang.IllegalArgumentException: Can not set za.co.idealize.dao.impl.BeaconDao field za.co.idealize.controller.BeaconJsonController.beaconDao to com.sun.proxy.$Proxy30
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:973)
        at org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler(AbstractUrlHandlerMapping.java:287)
        at org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler(AbstractUrlHandlerMapping.java:266)
        at org.springframework.web.servlet.handler.AbstractDetectingUrlHandlerMapping.detectHandlers(AbstractDetectingUrlHandlerMapping.java:82)
        at org.springframework.web.servlet.handler.AbstractDetectingUrlHandlerMapping.initApplicationContext(AbstractDetectingUrlHandlerMapping.java:58)
        at org.springframework.context.support.ApplicationObjectSupport.initApplicationContext(ApplicationObjectSupport.java:120)
        at org.springframework.web.context.support.WebApplicationObjectSupport.initApplicationContext(WebApplicationObjectSupport.java:73)
        at org.springframework.context.support.ApplicationObjectSupport.setApplicationContext(ApplicationObjectSupport.java:74)
        at org.springframework.context.support.ApplicationContextAwareProcessor.invokeAwareInterfaces(ApplicationContextAwareProcessor.java:119)
        at org.springframework.context.support.ApplicationContextAwareProcessor.postProcessBeforeInitialization(ApplicationContextAwareProcessor.java:94)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:407)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1545)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
        ... 21 more
    Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: public za.co.idealize.dao.impl.BeaconDao za.co.idealize.controller.BeaconJsonController.beaconDao; nested exception is java.lang.IllegalArgumentException: Can not set za.co.idealize.dao.impl.BeaconDao field za.co.idealize.controller.BeaconJsonController.beaconDao to com.sun.proxy.$Proxy30
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
        at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
        ... 41 more
    Caused by: java.lang.IllegalArgumentException: Can not set za.co.idealize.dao.impl.BeaconDao field za.co.idealize.controller.BeaconJsonController.beaconDao to com.sun.proxy.$Proxy30
        at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:146)
        at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:150)
        at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:63)
        at java.lang.reflect.Field.set(Field.java:657)
        at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:504)
        ... 43 more

however when i mark the beaconDao with @Service or @Component everything works perfectly fine. Can anyone see an issue here?

1
javaspringspring-mvcannotations
Are you sure that you are using org.springframework.stereotype.Repository? Can you post your config and the code (including imports) with the @Repository annotation? - Kevin Bowersox
@KevinBowersox My instinct was the same. OP, note that the root error here is Can not set za.co.idealize.dao.impl.BeaconDao field za.co.idealize.controller.BeaconJsonController.beaconDao to com.sun.proxy.$Proxy30 - drew moore
Are you using AOP in your application? - davioooh
thank you very much for your replies. I a not using AOP however I found the below answer helpful. I am still unclear as to why 'code'@Respository'code' does not work without using an interface but 'code'@service'code' and 'code'@component'code' annotations allow you to use the concrete class. - Moejoejoejoe

1 Answers

6
votes

The problem lies entirely elsewhere:

Can not set za.co.idealize.dao.impl.BeaconDao field za.co.idealize.controller.BeaconJsonController.beaconDao to com.sun.proxy.$Proxy30.

Now, if I were to translate that to English then the translation would be: Spring cannot set beaconDao field on za.co.idealize.controller.BeaconJsonController singleton because JDK proxies are used and you have declared the BeaconJsonController.beaconDao as BeaconDao class when you should have used some kind of interface. I suspect your BeaconDao class hierarchy looks someting like BeaconDao -> BaseDao -> ISomeDao where ISomeDao is an interface. Change the declaration in BeaconJsonController from 

private BeaconDao beaconDao;

to

private ISomeDao beaconDao;

and use qualifier if you must. The problem is that Spring will create proxy for ISomeDao interface rather than for BeaconDao and you then tries to assign ISomeDao proxy to BeaconDao field which causes the class cast exception.