Is it possible to unproxy a Spring bean?

Question

I have a Spring bean, let's say:

@TransactionAttribute(TransactionAttributeType.REQUIRED)  public class AImpl implements A {       public void setSomeDependency(D dependency) {          // This setter DOES NOT BELONG to interface A      } }  <bean id="aImpl" class="AImpl"/> 

Now I want to integration test it, but first I need to mock the dependency D, because it does too much stuff. Since the AImpl implements an interface and contains a transactional annotation, the generated proxy is only compatible with the interface A, so I can do this:

@Inject @Named("aImpl") private A a; 

but cannot:

@Inject @Named("aImpl") private AImpl a; 

As a result, I can't mock my dependency.

Please note that adding void setSomeDependency(D dependency) to interface A is not an option, as it has no business meaning. Neither it is using the proxy-target-class="true", as it breaks a whole lot of other beans (this attribute affects all beans in the context).

Is there a way to unproxy the injected bean A, so I could cast it to AImpl?

Answer 1

Try this:

if(AopUtils.isAopProxy(a) && a instanceof Advised) {     Object target = ((Advised)a).getTargetSource().getTarget();     AImpl ai = (AImpl)target; } 

Bonus: in Scala I am using the following equivalent function for the very same purpose:

def unwrapProxy(a: AnyRef) = a match {     case advised: Advised if(AopUtils.isAopProxy(advised)) =>                              advised.getTargetSource.getTarget     case notProxy => notProxy }