Hi!
Jboss 4.0.4 GA with EJB 3.0
J have a very simple application.
my-app.ear
-> Meta-inf
    -> application.xml
-> app-ejb-1.0.jar
       -> Meta-inf
          -> persistance.xml
       -> company
          -> app
             -> ejb
                -> entity
                   -> Document.class
                   -> Scan.class
                -> session
                   ->TestStatelessBean.class
             -> interfaces
                -> TestStatelessBeanLocal.class
---------------------------------------------------------------------------------
Persistance.xml:
<?xml version="1.0" encoding="UTF-8"?>

<persistence-unit name="app">
<jta-data-source>java:appDS</jta-data-source>
</persistence-unit>


------------------------------------------------------------------------------------
oracle9i-ds.xml (deployed on Jboss):

<local-tx-datasource>
<jndi-name>appDS</jndi-name>
<connection-url>jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=xxx)(PORT=1521)))(CONNECT_DATA=(SID=yyy)(SRVR=DEDICATED)))
</connection-url>

<driver-class>oracle.jdbc.driver.OracleDriver</driver-class>
<user-name>eee</user-name>

...


<type-mapping>Oracle9i</type-mapping>


</local-tx-datasource>


J have this connection url( (DESCRIPTION=(ADDRESS....) defined in tnsames.ora so i think it's correct.
---------------------------------------------------------------------------------
Document.java:
@Entity
@Table(name = "DOCUMENTS")
public class Document implements java.io.Serializable
{

private static final long serialVersionUID = -2324201610375801418L;

private int doc_id;
private String name;

@Id
public int getDoc_id()
{
return doc_id;
}

public void setDoc_id(int id)
{
this.doc_id = id;
}

public String getName()
{
return name;
}

public void setName(String name)
{
this.name = name;
}
}

Scan.java is very similar to Document.java
-----------------------------------------------------------------------------------

My problem: Entity beans don't deploy. I see on Jboss:

[EARDeployer] Init J2EE application: file:/C:/jboss-4.0.4.GA/server/app/deploy/1app-ear-jboss-1.0.ear
[Ejb3Deployment] EJB3 deployment time took: 15
[JmxKernelAbstraction] installing MBean: jboss.j2ee:ear=1app-ear-jboss-1.0.ear,jar=app-ejb-1.0.jar,name=TestStatelessBean,service=EJB3 with dependencies:
[EJBContainer] STARTED EJB: comarch.app.ejb.session.TestStatelessBean ejbName: TestStatelessBean
[EJB3Deployer] Deployed: file:/C:/jboss-4.0.4.GA/server/app/tmp/deploy/tmp542761app-ear-jboss-1.0.ear-contents/app-ejb-1.0.jar
[EARDeployer] Started J2EE application: file:/C:/jboss-4.0.4.GA/server/app/deploy/1app-ear-jboss-1.0.ear


When I'm trying add into TestStatelessBean.java:

@PersistenceContext
private EntityManager manager;
i see warning:

WARN [ServiceController] Problem starting service jboss.j2ee:service=EJB3,module=app-ejb-1.0.jar
java.lang.RuntimeException: Field private javax.persistence.EntityManager comarch.app.ejb.session.TestStatelessBean.manager @PersistenceUnit in error: EMPTY STRING unitName but there is no deployments in scope

I think my Jboss doesn't see this Entity Beans. Maybe it's a problem with my definition of data source? I don't know how can I verify this data source. In oracle9i-ds.xml is '
<check-valid-connection-sql>select sysdate from dual
</check-valid-connection-sql>
but i can write bad connections (e.g. host which doesn't exist) and this ds is every time deployed on the Jboss without error.
I haven't got any idea where is the problem.
Please, help me!
Rafal