JPA Entities not found after migrating to AS 7

[dmitriy_fot]

Hi,

I need to migrate a relatively big enterprise app from JBoss AS 4 to JBoss AS 7.

The latest problem I encountered and was not able to resolve myself is related to persistence.xml and how the jar files scanned for JPA Entities.

I have an exploaded deployment.

App.ear

- defaultEjb.jar

---- META-INF

--------persistence.xml             

- AEjb.jar

- BEjb.jar

All of the EJB jars contain the entities referenced from the persitence.xml. The whole application uses just one persistent unit.

<persistence-unit name="my-unit">

<jta-data-source>java:/DefaultDS</jta-data-source>

<jar-file>../App.ear/AEjb.jar</jar-file>

<jar-file>../App.ear/BEjb.jar</jar-file>

....

in the log I see that the names of the scanned jars are correct, nevetheless I get the following exception:

jboss.persistenceunit."App.ear/defaultEjb.jar#my-unit": org.jboss.msc.service.StartException in service jboss.persistenceunit."App.ear/defaultEjb.jar#my-unit": Failed to start service

    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1780)

    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [:1.7.0]

    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [:1.7.0]

    at java.lang.Thread.run(Unknown Source) [:1.7.0]

Caused by: javax.persistence.PersistenceException: [PersistenceUnit: my-unit] Unable to build EntityManagerFactory

    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:908)

    at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:884)

    at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73)

    at org.jboss.as.jpa.service.PersistenceUnitService.createContainerEntityManagerFactory(PersistenceUnitService.java:143)

    at org.jboss.as.jpa.service.PersistenceUnitService.start(PersistenceUnitService.java:77)

    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1824)

    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1759)

    ... 3 more

Caused by: org.hibernate.AnnotationException: @OneToOne or @ManyToOne on com.default.ejb.A.user references an unknown entity: com.a.ejb.UserBean

    at org.hibernate.cfg.ToOneFkSecondPass.doSecondPass(ToOneFkSecondPass.java:108)

    at org.hibernate.cfg.Configuration.processEndOfQueue(Configuration.java:1501)

    at org.hibernate.cfg.Configuration.processFkSecondPassInOrder(Configuration.java:1424)

    at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1342)

    at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1711)

    at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:76)

    at org.hibern

[rhanus]

I guess that entity class com.a.ejb.UserBean is not available in defaultEjb.jar but in AEjb.jar

you should propably repackage you application in order to meet jpa2 spec requirements for persisetnce unit, details here

[smarlow]

There was a <jar-file> issue fixed that might help.  Can you try again with the nightly AS7 build?

Radim is right also, I added the following from the JPA 2.0 specification to our JPA documentation.

NOTE: Java Persistence 1.0 supported use of a jar file in the root of the EAR as the root of a persistence unit. This use is no longer supported. Portable applications should use the EAR library directory for this case instead.

[dmitriy_fot]

thank you guys,

I moved the persistence.xml from EJB into shared utility jar (stored in EAR/lib), and deployment worked.