JBAS016069: Error injecting persistence unit into CDI managed bean. Can't find a persistence unit named in deployment

[nachtfalke]

Hi there,

i am trying to run an application with JBoss 7.1 under Linux. Deploying and running it under Windows works fine. Under Linux I get following Exception when trying to access my datasource:

JBAS016069: Error injecting persistence unit into CDI managed bean. Can't find a persistence unit named  in deployment

Can anyone help?

persistence.xml:

<?xml version="1.0" encoding="UTF-8"?>

<persistence>

   <persistence-unit name="musicserverdb">

      <provider>org.hibernate.ejb.HibernatePersistence</provider>

      <jta-data-source>java:jboss/datasources/ExampleDS</jta-data-source>

      <properties>

         <property name="hibernate.dialect"

                  value="org.hibernate.dialect.H2Dialect"/>

      </properties>

   </persistence-unit>

</persistence>  

relevant code of dao:

@SuppressWarnings("unchecked")

public abstract class GenericDao<E, PK extends Serializable> {

    @PersistenceContext(name = "musicserverdb")

    private EntityManager entityManager;

    public EntityManager getEntityManager() {

        return entityManager;

    }

    public void setEntityManager(final EntityManager entityManager) {

        this.entityManager = entityManager;

    }

[presty]

Hi,

i'm using Wildfly 8.2.0 in unix, and this problem occours when the war has a bad structure. The war doesn't work if in the classes folder there isn't META-INF/persistence.xml file.

I hope this will help u.