Environment
- WebLogic 11g (consequently Java EE 5 and EJB 3.0)
- An EJB contained JAR that also holds all persistence Entities. It worked fine (have a web app that uses the EJB and it works as expected). I decided to separate Entities to another layer and to do this I created another module and deploy that as an Optional Package. So now I have two JAR files which, by the way, I deploy separately and not as part of one application; persistence JAR and EJB JAR.
Problem
During the deployment of EJB I get the following error (which tells me that the Optional Package wasn't found):
Unable to deploy EJB: StocksBean from BLayer-1.0.0-SNAPSHOT.jar: No persistence unit named 'internalAppsPU' is available in scope
BLayer-1.0.0-SNAPSHOT.jar. Available persistence units: []
More Info
Manifest of persistence module's JAR
Manifest-Version: 1.0
Archiver-Version: Plexus Archiver
Created-By: Apache Maven
Built-By: bm03043
Build-Jdk: 1.6.0_18
Extension-Name: com.amir.persistence
Implementation-Version: 1.0.0
Specification-Version: 1.6
persistence.XML in META-INF folder of persistence module's JAR
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
version="1.0">
<persistence-unit name="internalAppsPU" transaction-type="JTA">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<jta-data-source>InternalAppsDS</jta-data-source>
<class>com.xx.persistence.Stock</class>
<properties>
<property name="eclipselink.logging.level" value="FINE" />
</properties>
</persistence-unit>
</persistence>
EJB's code
package com.xx.bll;
// bunch of imports //
@Stateless(name="StocksBean", mappedName="Internal-BLayer-StocksBean")
public class StocksBean implements Stocks {
@PersistenceContext(unitName = "internalAppsPU")
private EntityManager em;
// SNIP //
}
Manifest of EJB's JAR
Manifest-Version: 1.0
Archiver-Version: Plexus Archiver
Created-By: Apache Maven
Built-By: bm03043
Build-Jdk: 1.6.0_18
Extension-List: PLayer
PLayer-Extension-Name: PersistenceLayer
PLayer-Implementation-Version: 1.0.0-SNAPSHOT
PLayer-Specification-Version: 1.6
Please take note the following:
- The InternalAppsDS data source is configured previously in WebLogic.
- At some point I was under the impression that names in Extension-List have to match the names of JAR files deployed as Optional Package. But as I read more I realized that's not correct.
