packagesToScan in LocalContainerEntityManagerFactoryBea doesn't work if ...

[khong07]

Hi,
I'm using Spring 3.1.3 Release and Hibernate 4.
I have multiple maven module in my project. In each module, i defined some domain Object.

-- module-core
-- module-sending (depends on module-core)
-- module-web (depends on module-core)

In module-core, i defined my persistence.xml that have only

<persistence-unit name="testPU" transaction-type="RESOURCE_LOCAL">

and in persistence context file:

... 
    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean" >
		<property name="jpaVendorAdapter" ref="jpaAdapter" />
		<property name="persistenceUnitName" value="testPU"/>
		<property name="dataSource" ref="dataSource"/>
		<property name="packagesToScan">
	            <list>
                        <value>com.test.core.domain</value>
                        <value>com.test.web.domain</value>
                        <value>com.test.sending.domain</value>
                    </list>
		</property>
	</bean>
...

In fact, the property "packagesToScan" will do not work. I've looked in the class DefaultPersistenceUnitManager.readPersistenceUnitI nfos() and i found

boolean buildDefaultUnit = (this.packagesToScan != null || this.mappingResources != null);
		PersistenceUnitReader reader = new PersistenceUnitReader(this.resourcePatternResolver, this.dataSourceLookup);
		SpringPersistenceUnitInfo[] readInfos = reader.readPersistenceUnitInfos(this.persistenceXmlLocations);
		for (SpringPersistenceUnitInfo readInfo : readInfos) {
			infos.add(readInfo);
			if (this.defaultPersistenceUnitName != null &&
					this.defaultPersistenceUnitName.equals(readInfo.getPersistenceUnitName())) {
				buildDefaultUnit = false;
			}
		}
                if (buildDefaultUnit) {
			infos.add(buildDefaultPersistenceUnitInfo());//--> this method will scan package defined in context
		}

So if i have my persistence.xml defined with name="testPU" and then in LocalContainerEntityManagerFactoryBean, i defined persistenceUnitName="testPU", the method buildDefaultPersistenceUnitInfo with never be called. So no packages that i set before will be scan.

Could you see for me what is wrong? And WHY this

if (this.defaultPersistenceUnitName != null &&
this.defaultPersistenceUnitName.equals(readInfo.ge tPersistenceUnitName())) {
buildDefaultUnit = false;
}

EDIT: when i remove my persistence.xml file, it works like a charm.

Regards

[Marten Deinum]

The packagesToScan attribute is there for xml less configuration ie. no persistence.xml... When using a persistence xml it follows the JPA spec.