Arquillian integration tests and OpenJPA enhancement - jpa

Question

I'm working on a set of integration tests using arquillian and dbunit. I can run some of my tests just fine, but not the ones involving entities which have oneToMany relations with data in them. When running my tests I then get a PersistenceException:
Caused by: java.lang.NullPointerException
at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.setInverseRelation(JDBCStoreManager.java:451)
My test looks like this:
#RunWith(Arquillian.class)
#CreateSchema("sql/masterplanCreateTables.sql")
public class MasterPlanManagerBeanDbIT {
#Rule
public PersistenceUnitRule rule = new PersistenceUnitRule();
#Inject
private MasterplanManager instance;
#PersistenceContext
EntityManager entityManager;
#Deployment
public static WebArchive createDeployment() throws Exception {
return ShrinkWrap
.create(WebArchive.class, .....
}
#Test
#UsingDataSet("/data/integration/uttrans/masterplan/validData_dbInput.xml")
public void updateTrip_givenValidInput_expectsTripToBeUpdated() {
Trip input = givenTrips().get(0);
input.setNote("updated value");
Trip updated = instance.updateTrip(input);
checkEquality(input, updated);//checks field by field for equality
}
}
My pom.xml looks like this:
...
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.jboss.arquillian</groupId>
<artifactId>arquillian-bom</artifactId>
<version>1.0.1.Final</version>
<scope>import</scope>
<type>pom</type>
</dependency>
</dependencies>
</dependencyManagement>
...
<dependencies>
<dependency>
<groupId>org.jboss.arquillian.junit</groupId>
<artifactId>arquillian-junit-container</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.openejb</groupId>
<artifactId>arquillian-tomee-embedded</artifactId>
<version>${tomee.version}</version>
<scope>test</scope>
</dependency>
...
</dependencies>
...
I did try the openjpa-maven-plugin to enhance the entities at build-time, but this will afaik alter the compiled entities which later will be deployed to our production environment (using deploy-time enhancement).
With that in mind, is it possible to enable deploy-time enhancement in my arquillian tests?

Answer 1

As I'm using openJpa, I found this link very helpful:
http://openejb.apache.org/javaagent.html
I am simply providing the openejb java-agent to the maven surefire plugin.

Answer 2

If you are using eclipse add -javaagent:{your java agent path} to the VM arguments for the test.
In my case I took the java agent directly from a TomEE installation.