Problem with ReflectionTestUtils on transactional components

[chawax]

Hi,

I have the following Spring component with an autowired field.

@Service
@Transactional(propagation=Propagation.REQUIRED, rollbackFor=Throwable.class)
public class PlageCalculServiceImpl implements PlageCalculService {

   @Autowired
   private ParametresStore parametresStore;

   @Override
   public PlageHoraire getPlagePreparation(Date lundi) {...}

}

I wrote the followowing unit test, using ReflectionTestUtils to inject the parametresStore autowired field :

@RunWith(SpringJUnit4ClassRunner.class)
@Transactional
@ContextConfiguration(locations = {
   "classpath:spring-test.xml",
   "classpath:spring-datasource-test.xml",
   "classpath:spring-hibernate-test.xml"})
public class PlageCalculServiceTest {

   @Autowired
   private PlageCalculService plageCalculService;

   @Test
   public void testGetPlagePreparationDimanche() {
      ...
      ParametresStore mock = new ParametresStoreMock();
      ReflectionTestUtils.setField(this.plageCalculService, "parametresStore", mock, ParametresStore.class);
		
      Calendar lundi = new GregorianCalendar(2010, Calendar.NOVEMBER, 8, 5, 0);
      PlageHoraire plagePreparation = this.plageCalculService.getPlagePreparation(lundi.getTime());
      ...
   }
}

When I run unit tests, I have the following stack trace :

java.lang.IllegalArgumentException: Could not find field [parametresStore] on target [xxx.PlageCalculServiceImpl@19478c7]
	at org.springframework.test.util.ReflectionTestUtils.setField(ReflectionTestUtils.java:106)

If I remove @Transactional annotation from my Spring component, everything works fine.

I use Spring 3.0.4.

Any idea how I could solve this problem ?

Thanks in advance,

Olivier

[JayShark]

The problem is that @Transactional creates a proxy on your object which doesn't expose the private fields so the reflection utils can't find the field you're trying to set. I'm facing the same problem myself with AOP-AutoProxy. Did you find a solution to this?

[jpelgrim]

Hi guys,

Did you try the three argument version of setField method in ReflectionTestUtils? I got the same error using the four argument version, but switching to the three argument version solved it in my case.

Cheers,

Johan