I seem to remember seeing this problem a while back where the provided data-source wasn't found.... and we throw this misleading exception. Perhaps someone else can chime in with details?
One thing you can do is set : <property name="openjpa.jdbc.DBDictionary" value="postgres"/> On Sun, Jun 30, 2013 at 2:59 AM, Pawel Veselov <pawel.vese...@gmail.com>wrote: > Hi. > > Using OpenJPA 2.1.1, I ran into this problem after I switched to custom > implementation of the data source. I guess what's happening is that > dictionary can no longer be determined from the class name, so it attempts > to look at the URL, but the data source object is not yet populated. > Everything works perfectly if I use original data source. Anything I can > do? The database is postgres. > > persistence.xml: > <?xml version="1.0" encoding="UTF-8"?> > <persistence xmlns="http://java.sun.com/xml/ns/persistence"; version="2.0"> > <persistence-unit name="Snap"> > <provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider> > <non-jta-data-source>snap_db_jpa</non-jta-data-source> > <!-- entities defined here --> > <properties> > <property name="openjpa.Log" value="File=/tmp/jpa.log, DefaultLevel=WARN, > SQL=TRACE"/> > <property name="openjpa.jdbc.SynchronizeMappings" > > value="refresh(ForeignKeys=true,PrimaryKeys=true,Indexes=true,DropUnusedComponents=true,)"/> > </properties> > </persistence-unit> > </persistence> > > > Exception: > Caused by: <openjpa-2.2.1-r422266:1396819 fatal user error> > org.apache.openjpa.persistence.ArgumentException: A JDBC Driver or > DataSource class name must be specified in the ConnectionDriverName > property. Available properties in configuration are > "org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl@f237a66c". > at > > org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFactory.java:72) > at > > org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactory(JDBCConfigurationImpl.java:844) > at > > org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDBDictionaryInstance(JDBCConfigurationImpl.java:602) > at > > org.apache.openjpa.jdbc.meta.MappingRepository.endConfiguration(MappingRepository.java:1518) > at > > org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:518) > at > > org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:443) > at > org.apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java:104) > at > > org.apache.openjpa.conf.MetaDataRepositoryValue.instantiate(MetaDataRepositoryValue.java:68) > at > org.apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83) > at > > org.apache.openjpa.conf.OpenJPAConfigurationImpl.newMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:967) > at > > org.apache.openjpa.conf.OpenJPAConfigurationImpl.getMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:958) > at > > org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrokerFactory.java:638) > at > > org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:203) > at > > org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:156) > at > > org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:227) > at > > org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:154) > at > > org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:60) > at > com.excelfore.util.ThreadContext.getEntityManager(ThreadContext.java:215) > -- *Rick Curtis*
