Eclipselink & Spring Data

Question

I am trying to implement a solution using a combination of eclipselink (2.4.0) and spring-data-jpa (1.1.0.RELEASE). However, every time I deploy the solution (Tomcat 7), I get the following exception:

Caused by: java.lang.IllegalArgumentException: No [ManagedType] was found for 
the key class [com.acme.domain.entities.User] in the Metamodel - please 
verify that the [Managed] class was referenced in persistence.xml using a 
specific <class>com.acme.domain.entities.User</class> property or a global 
<exclude-unlisted-classes>false</exclude-unlisted-classes> element.

It appears to occur when the repository autowiring takes place (code examples below):

Service class

@Component
public class UserDataService {

    @Autowired
    private UserRepository userRepository;

    ...
}

Entity class

package com.acme.domain.entities;

...

@Entity
@Table(name = "users")
public class User implements Serializable {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "user_id")
    private Integer id;

    ...

}

persistence.xml

<persistence-unit name="default" transaction-type="RESOURCE_LOCAL">
    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>    
    <class>com.acme.domain.entities.User</class>

    ...
</persistence-unit>

Can this be due to some conflict between spring and eclipselink?

UPDATE:

Stacktrace...

[#|2012-07-31 16:25:02,317|ERROR|pool-2-thread-40|org.springframework.web.context.ContextLoader|Context initialization failed|#]
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDataService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.acme.data.repositories.UserRepository com.acme.data.services.UserDataService.userRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalArgumentException: No [ManagedType] was found for the key class [com.acme.domain.entities.User] in the Metamodel - please verify that the [Managed] class was referenced in persistence.xml using a specific <class>com.acme.domain.entities.User</class> property or a global <exclude-unlisted-classes>false</exclude-unlisted-classes> element.
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:287)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:609)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:469)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:383)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4779)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5273)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:897)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:873)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:958)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1599)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:680)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.acme.data.repositories.UserRepository com.acme.data.services.UserDataService.userRepository; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalArgumentException: No [ManagedType] was found for the key class [com.acme.domain.entities.User] in the Metamodel - please verify that the [Managed] class was referenced in persistence.xml using a specific <class>com.acme.domain.entities.User</class> property or a global <exclude-unlisted-classes>false</exclude-unlisted-classes> element.
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:512)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:92)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:284)
    ... 27 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalArgumentException: No [ManagedType] was found for the key class [com.acme.domain.entities.User] in the Metamodel - please verify that the [Managed] class was referenced in persistence.xml using a specific <class>com.acme.domain.entities.User</class> property or a global <exclude-unlisted-classes>false</exclude-unlisted-classes> element.
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:149)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:102)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1442)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:305)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:876)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:818)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:735)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:484)
    ... 29 more
Caused by: java.lang.IllegalArgumentException: No [ManagedType] was found for the key class [com.acme.domain.entities.User] in the Metamodel - please verify that the [Managed] class was referenced in persistence.xml using a specific <class>com.acme.domain.entities.User</class> property or a global <exclude-unlisted-classes>false</exclude-unlisted-classes> element.
    at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.entityEmbeddableManagedTypeNotFound(MetamodelImpl.java:174)
    at org.eclipse.persistence.internal.jpa.metamodel.MetamodelImpl.managedType(MetamodelImpl.java:489)
    at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.<init>(JpaMetamodelEntityInformation.java:58)
    at org.springframework.data.jpa.repository.support.JpaEntityInformationSupport.getMetadata(JpaEntityInformationSupport.java:65)
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation(JpaRepositoryFactory.java:149)
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:87)
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:70)
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:137)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.getObject(RepositoryFactoryBeanSupport.java:125)
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.getObject(RepositoryFactoryBeanSupport.java:41)
    at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:142)
    ... 37 more

Answer 1

I was able to solve my issue but it was another setup as the one above, i just add a few things i stumbled across until i was able to solve it in my SE-Environment:

• Bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=338837 affects EclipseLink Version 2.2.0 and below versions. Mostly happening in Local-Environment (RESOURCE_LOCAL). A EclipseLink version-Upgrade or the following workaround may help:

<exclude-unlisted-classes>false</exclude-unlisted-classes>

• Having multiple persistence.xml files in classpath (e.g. especially in 3th party JARs) that all define the same persistence-unit-name (above "default" may be very common). Try renaming your persistence-unit-name in this case as a first step

• In case of renaming the persistence-unit-name worked but changing it back to the old value reproduces the problem there is either above mentioned 3th party JAR or old JARs of your own project beeing included to your build (e.g. refactoring/ renaming on project level or similar changed the structure so for example a maven build could still take old build artifacts from the repository)

Finaly when it comes to my setup (Spring-Standalone Application, no persistence.xml but tons of Spring-configurations because a custom company Framework is used) it showed that i just forgot to add the the entity-package of the custom framework-core when i wanted to run one of their service-implementations (Spring-Bean implementation) in my local project rather than having their service-implementation from a JAR-dependency. So make sure that you have all of the required entity packages listed for your EntityManagerFactory:

    <bean id="customEntityManagerFactory" parent="abstractEntityManagerFactory">
        <property name="dataSource" ref="dataSource"/>


        <!-- Packages of EntityClasses -->
        <property name="packagesToScan">
            <list merge="true">
                <value>ch.company.div1.foo.bar.model</value>
                <value>ch.company.div1.foo.barnicle.model</value>
                <value>ch.company.div2.we.help.model</value>
            </list>
        </property>

        <property name="jpaProperties">
            <props merge="true">
                <prop key="eclipselink.target-database">org.eclipse.persistence.platform.database.SQLServerPlatform
                </prop>
                <prop key="javax.persistence.transactionType">RESOURCE_LOCAL</prop>
            </props>
        </property>
     </bean>

In my case i forgot to add the model packagege with the used entitys of another division (that writes the custom framework core) of our company.

Good luck, that error's a beast :/