Error JBAS011440 with JBoss 7.1.1: persistence unit not found

[maulattu]

Hi all,

I'm developing a simple example with jboss 7.1.1 under Windows using persistence APIs.

The database driver installation (both postgres as well as mysql) were ok, as well as the datasource creation:

...
16:18:02,496 INFO  [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 27) JBAS010404: Deploying non-JDBC-compliant driver class org.postgresql.Driver (version 9.0)
16:18:02,507 INFO  [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 27) JBAS010404: Deploying non-JDBC-compliant driver class com.mysql.jdbc.Driver (version 5.1)
...
16:18:03,314 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-4) JBAS010400: Bound data source [ java : jboss / datasources / hibernatepg]
16:18:03,314 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-5) JBAS010400: Bound data source [java : jboss / datasources / ExampleDS]
16:18:03,445 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-8) JBAS010400: Bound data source [java:/MySqlDS]

I created the persistence.xml file under META-INF directory:

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
             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_2_0.xsd">
    <persistence-unit name="persistenceUnit" transaction-type="JTA">
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <jta-data-source>java:/MySqlDS</jta-data-source>
        <properties>
            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
        </properties>
    </persistence-unit>
</persistence>

Even following these tutorials:

https://community.jboss.org/message/715357#715357

http://www.mastertheboss.com/jboss-application-server/50-jboss-entity-bean.html

There's no way to let reachable this datasource in a singleton ejb:

@Singleton
public class SingletonBean {
   ...
   @PersistenceContext(unitName = "persistenceUnit")
    private EntityManager em;
   ...
}

In fact I've this error related to such datasource:

JBAS011440: Can't find a persistence unit named persistenceUnit in deployment "persistence.jar"

Even if I call the datasource "java:/MySqlDS" with name "persistenceUnit" (now it has name "MySqlDS_Pool") there's no way to have a working and deployable jar file

Any advice please?

thank you all guys!

[wdfink]

your persistence.xml should look like the following example. the datasource definition in your standalone.xml should named as the jta-data-source:

{code}

<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="persistenceUnit">

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

        <properties>

            <property name="hibernate.hbm2ddl.auto" value="update" />

        </properties>

    </persistence-unit>

</persistence>

{code}

[maulattu]

Hi Wolf-Dieter,

first of all thank you for your quick update.

In fact, my persistence.xml file is:

<persistence version="2.0"

             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_2_0.xsd">

    <persistence-unit name="persistenceUnit" transaction-type="JTA">

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

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

        <properties>

            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />

        </properties>

    </persistence-unit>

</persistence>

FYI this is during JBoss startup:

16:15:18,355 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-3) JBAS010400: Bound data source [java:/jboss/datasources/mysqlds]

and this is during the deployment:

JBAS011440: Can't find a persistence unit named persistenceUnit in deployment "persistence.jar"

I saw right now that the "persistence.xml" file is not included in the jar file deployed (I create it using maven)

I'll keep you updated

thank you

[maulattu]

Hi Wolf-Dieter,

your suggestion indirectly helped me

I had the persistence.xml file, but in the wrong place.

Thus, packing and deploying the project with maven, the persistence.xml file was discarded, so the error above was raised.

Thank you for your time