Hi there. The strange thing is that I don't really have exceptions. I'm using JBoss 4.2.2, OpenJPA 1.1.0, and Java 1.5. In two beans, I am injecting the OpenJPA context via the @PersistenceContext(unitName="EventData") But I never see these two beans deploy completely, as it says it is waiting for the persistence unit "EventData" to start. My 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" version="1.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"> <persistence-unit name="EventData" transaction-type="JTA"> org.apache.openjpa.persistence.PersistenceProviderImpl <jta-data-source>java:jdbc/ds</jta-data-source> I have classes here </persistence-unit> I get the following in the JBoss server log: 2008-07-29 00:32:07,373 DEBUG [org.jboss.ejb3.Ejb3Module] Starting jboss.j2ee:service=EJB3,module=app_ejb-1.0.0.jar 2008-07-29 00:32:07,394 DEBUG [org.jboss.injection.PersistenceUnitHandler] ******* could not find PU dependency so adding a default: persistence.units:unitName=EventData 2008-07-29 00:32:07,402 DEBUG [org.jboss.ejb3.EJBContainer] Initialising interceptors for DataAccessBean... 2008-07-29 00:32:07,402 DEBUG [org.jboss.ejb3.EJBContainer] Default interceptors: null 2008-07-29 00:32:07,402 DEBUG [org.jboss.ejb3.EJBContainer] Class interceptors: [] 2008-07-29 00:32:07,403 DEBUG [org.jboss.ejb3.EJBContainer] All applicable interceptor classes: [] ... 2008-07-29 00:32:07,442 INFO [org.jboss.ejb3.JmxKernelAbstraction] installing MBean: jboss.j2ee:ear=App.ear,jar=app_ejb-1.0.0.jar,name=DataAccessBean,service=EJB3 with dependencies: 2008-07-29 00:32:07,442 INFO [org.jboss.ejb3.JmxKernelAbstraction] persistence.units:unitName=EventData 2008-07-29 00:32:07,443 DEBUG [org.jboss.system.ServiceController] Creating service jboss.j2ee:ear=App.ear,jar=app_ejb-1.0.0.jar,name=DataAccessBean,service=EJB3 2008-07-29 00:32:07,443 DEBUG [org.jboss.system.ServiceController] adding depenApp in ServiceController.register: [persistence.units:unitName=EventData] ... 2008-07-29 00:32:07,443 DEBUG [org.jboss.system.ServiceController] waiting in create of jboss.j2ee:ear=App.ear,jar=app_ejb-1.0.0.jar,name=DataAccessBean,service=EJB3 waiting on persistence.units:unitName=EventData 2008-07-29 00:32:07,443 DEBUG [org.jboss.system.ServiceController] starting service jboss.j2ee:ear=App.ear,jar=app_ejb-1.0.0.jar,name=DataAccessBean,service=EJB3 It never hits the 2008-07-29 00:32:07,450 INFO [org.jboss.ejb3.EJBContainer] STARTED EJB: Like all my other session beans do. Does that mean that the bean is still waiting for the persistence unit? These are the only two that don't get deployed completely and available in JNDI and the only ones that use the persistence stuff. Sometimes...and not always, i will get trace logs from OpenJPA: 70 EventData INFO [pool-13-thread-1] openjpa.Runtime - Starting OpenJPA 1.1.0 71 EventData TRACE [pool-13-thread-1] openjpa.Runtime - Properties: openjpa.EntityManagerFactory: default 99 EventData TRACE [pool-13-thread-1] openjpa.Runtime - No cache marshaller found for id org.apache.openjpa.conf.MetaDataCacheMaintenance. 195 EventData TRACE [pool-13-thread-1] openjpa.MetaData - Using metadata factory "org.apache.openjpa.persistence.jdbc.PersistenceMappingFactory@3a3b6b". 206 EventData TRACE [pool-13-thread-1] openjpa.jdbc.JDBC - OpenJPA will now connect to the database to attempt to determine what type of database dictionary to use. You may prevent this connection in the future by setting your openjpa.jdbc.DBDictionary configuration property to the appropriate value for your database (see the documentation for available values). Not that I don't always get the openjpa.log, I don't know why though...it is rather inconsistent. Thanks for any help. H View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4167331#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...