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Bug
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Resolution: Done
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Major
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7.1.1.Final
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EAP 6.0.0.ER4.1, Seam 2.3.0.Beta2-SNAPSHOT (2012-04-06)
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Release Notes
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I have an Seam2 EAR application (Blog example from Seam distribution) which almost always fails to deploy with
javax.naming.NameNotFoundException: Error looking up blogEntityManagerFactory, service service jboss.naming.context.java.blogEntityManagerFactory is not started
The application.xml looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<application xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/application_6.x
sd" version="6">
<description>Examples for Seam 2 Framework in Java EE6 environment</description>
<display-name>blog-ear</display-name>
<initialize-in-order>true</initialize-in-order>
<module>
<ejb>blog-ejb.jar</ejb>
</module>
<module>
<web>
<web-uri>blog-web.war</web-uri>
<context-root>/seam-blog</context-root>
</web>
</module>
<module>
<ejb>jboss-seam.jar</ejb>
</module>
<library-directory>lib</library-directory>
</application>
The blog-ejb.jar contains persistence.xml:
<?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="entityManager">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>java:jboss/datasources/ExampleDS</jta-data-source>
<properties>
<property name="hibernate.hbm2ddl.auto" value="create-drop"/>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.cache.use_second_level_cache" value="true"/>
<property name="hibernate.cache.use_query_cache" value="true"/>
<property name="jboss.entity.manager.factory.jndi.name" value="java:/blogEntityManagerFactory"/>
<property name="hibernate.search.default.directory_provider" value="filesystem"/>
<property name="hibernate.search.default.indexBase" value="./blogindexes"/>
</properties>
</persistence-unit>
</persistence>
The persistence unit is accessed in Seam via JNDI
(components.xml)
<persistence:managed-persistence-context name="entityManager"
auto-create="true"
persistence-unit-jndi-name="java:/blogEntityManagerFactory"/>
This (usually) fails in the IndexerService, which is started automatically during servlet startup, as the java:/blogEntityManagerFactory is not yet ready.
Note that in the application.xml the "initialize-in-order" is defined, so the web module should not start before the blog-ejb.jar ( which contains the persistence.xml), is started.
Source of IndexerService:
package actions;
import javax.ejb.Remove;
import org.hibernate.search.jpa.FullTextEntityManager;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Create;
import org.jboss.seam.annotations.Destroy;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.Startup;
/**
* Index Blog entry at startup
*
* @author Emmanuel Bernard
* @author Sanne Grinovero
*/
@Name("indexerService")
@Scope(ScopeType.APPLICATION)
@Startup
public class IndexerService
{
@In
private FullTextEntityManager entityManager;
@Create
public void index() {
entityManager.createIndexer().start();
}
@Remove
@Destroy
public void stop() {}
}
Also note that if I add the following bean to seam-ejb.jar it will correctly wait with the deployment of the web archive:
import javax.persistence.PersistenceUnit;
import javax.persistence.EntityManagerFactory;
import javax.ejb.Singleton;
import javax.ejb.Startup;
@Singleton
@Startup
public class Aargh
{
@PersistenceUnit
private EntityManagerFactory emf;
}
I believe this workaround shouldn't be necessary, and the initialize-in-order should also work with persistence units.
This issue affects all Seam2 EAR applications which use seam-managed entity manager in a @Startup bean, or any other legacy applications accessing persistence units through JNDI.
