[ppcsf]

Constructor injection?

[chvid]

Yes. But then you have to define an explicit constructor. Also X maybe auto wired into ServiceA or B making it impossible for the IoC container to create the intended object graph without splitting construction and injection into two passes.

[yazaddaruvala]

1. Lombok @RequiredArgsConstructor?

2. Do you not consider cyclic dependence a code smell? At least I have always avoided cyclic dependencies.

[chvid]

I personally consider the example I gave as being a nicer way of doing dependency injection than the more verbose constructor based injection.

But in general yes; cyclic dependencies are a bad idea.