Test
- Use of Specializes 
    - tests that the @Specializes annotated bean (X) replaces the other bean(Y) 
    [ie inherits Qualifiers] in these 2 scenarios
        - X extended the other bean Y and marks X as @Specializes
        - XProducer overrides the producer method YProducer and markes the
        XProducer's producer method as @Specializes.