Is it possible to unproxy a Spring bean?

java, spring

Solution

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
}

Problem

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`?

Original source

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