[patrickAnthony]

hi,

I’m using

myeclipse for spring

to generate a JPA, Spring, GWT scaffolding code for a project. I’m using the wizard to auto generate from a mysql db and after compiling the project and running it on the built in instance of tomcat I get the following error……..any help would be greatly appreciated….thanks in advance

2010-09-09 21:55:47,703 ERROR [main] ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'AddressDAO': Injection of persistence dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'MySQL' defined in class path resource [myproject-generated-dao-context.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: Illegal use of mappedBy on both sides of the relationship: com.myproject.domain.User.usersForUserId
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:341)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1055)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:511)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:290)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:287)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:189)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:562)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:871)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:423)
    at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:272)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:196)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4334)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
    at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)
    at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
    at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
    at org.apache.catalina.core.StandardService.start(StandardService.java:516)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:566)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'MySQL' defined in class path resource [myproject-generated-dao-context.xml]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: Illegal use of mappedBy on both sides of the relationship: com.myproject.domain.User.usersForUserId
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1403)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:290)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:287)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:189)
    at org.springframework.orm.jpa.EntityManagerFactoryUtils.findEntityManagerFactory(EntityManagerFactoryUtils.java:99)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findNamedEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:510)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.findEntityManagerFactory(PersistenceAnnotationBeanPostProcessor.java:492)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.resolveEntityManager(PersistenceAnnotationBeanPostProcessor.java:656)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor$PersistenceElement.getResourceToInject(PersistenceAnnotationBeanPostProcessor.java:629)
    at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:147)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:84)
    at org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor.postProcessPropertyValues(PersistenceAnnotationBeanPostProcessor.java:338)
    ... 37 more
Caused by: org.hibernate.AnnotationException: Illegal use of mappedBy on both sides of the relationship: com.myproject.domain.User.usersForUserId
    at org.hibernate.cfg.annotations.TableBinder.bindFk(TableBinder.java:196)
    at org.hibernate.cfg.annotations.CollectionBinder.bindCollectionSecondPass(CollectionBinder.java:1322)
    at org.hibernate.cfg.annotations.CollectionBinder.bindManyToManySecondPass(CollectionBinder.java:1161)
    at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:600)
    at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:541)
    at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:43)
    at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1149)
    at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:324)
    at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1134)
    at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1225)
    at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:159)
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:854)
    at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:425)

please let me know any classes that you might need to see to help with this

In my Address.java class

/**
     */
    @ManyToOne( fetch = FetchType.LAZY)
    @JoinColumns( { @JoinColumn(name = "user_id", referencedColumnName = "user_id") })
    @XmlTransient
    User user;
    /**
     */

this is my User.java class

    @OneToMany(mappedBy = "user", cascade = { CascadeType.REMOVE }, fetch = FetchType.LAZY)
    @XmlElement(name = "", namespace = "")
    java.util.Set<com.myproject.domain.Address> addresses;
    /**
     */

I tried adding targetEntity…but it had no affect

    /**
     */
    @OneToMany(targetEntity = com.myproject.domain.Address.class, mappedBy = "user", cascade = { CascadeType.REMOVE }, fetch = FetchType.LAZY)
    @XmlElement(name = "", namespace = "")
    java.util.Set<com.myproject.domain.Address> addresses;
    /**
     */


    /**
     */
    @ManyToOne(targetEntity = com.myproject.domain.User.class, fetch = FetchType.LAZY)
    @JoinColumns( { @JoinColumn(name = "user_id", referencedColumnName = "user_id") })
    @XmlTransient
    User user;
    /**
     */

thanks again

pa

[davemeurer]

Hello,

This is a hibernate error due to an annotation in an attribute in User called “usersForUserId”. Is that an attribute on your User object? If so, please post the code around that attribute. Also, please post the schema for User. Do you know what type of relationship this attribute is supposed to have? (e.g. Many to Many, One to Many, etc)

Kind regards,
Dave

[fbrody]

Thanks Dave,

Your response, pointed me in the right direction

f

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