title: jmockit seems to not find my non strict expectation, produced result is null
body: <p>I am trying to test the "provisionProduct()" method in some legacy code.  As you can see, it eventually makes a call on productDAO, which I want to mock out.</p>
  
  <pre><code>@Service( "productService" )
  @Transactional(propagation = Propagation.SUPPORTS, readOnly = true)
  public class ProductServiceImpl implements IProductService
  {
      private ProductDAO productDAO;
  
      @Autowired
      public ProductServiceImpl(ProductDAO dao)
      {
          productDAO = dao;
      }
  
      @Transactional(propagation = Propagation.REQUIRED, readOnly = false)
      public ProductProvisionResponseDTO provisionProduct(Long productId, String serverName) throws PortalException
      {
          [...]
          try
          {
              Product product = productDAO.findProductById(productId);
          [...]
      }
  }
  </code></pre>
  
  <p>Here is my test:</p>
  
  <pre><code>public class ProductServiceTest
  {
      @Mocked
      private ProductDAO m_mockProductDAO;
  
      private IProductService m_productService;
  
      @Test
      public void provisionProduct_noProfileAssociatedToProduct_throwsPortalException() throws PortalException, DAOException
      {
          m_productService = new ProductServiceImpl( m_mockProductDAO );
  
          new NonStrictExpectations()
          {
              {
                  m_mockProductDAO.findByProductId( anyLong );
                  result = new Product();
              }
          };
  
          m_productService.provisionProduct( 123456789L, "don't care" );
      }
  }
  </code></pre>
  
  <p>When I run the test, the call on productDAO always returns null.</p>
  
  <p>FWIW I can step into the findProductById() method, which takes me into JMockit's RecordAndReplayExecution class.  When JMockit gets to handleInvocation(), the nonStrictExpectation is null, and later produceResult() gives null.</p>
  
  <p>I believe this is a straightforward test case, but I am uncertain about whether Spring is somehow causing undesired effects, which is why I left the various annotations in my code snippets.  Admittedly I'm not very familiar with how Spring works.  I am directly instantiating the ProductServiceImpl, though, so I don't believe Spring is coming into play there.</p>
  
  <p>Any ideas?  Am I missing something totally obvious?</p>
  
  <p>JMockit v1.8, JUnit v4.8.2</p>