8. Contexts and Dependency Injection (CDI): no mention of specialization

Documentation: https://access.stage.redhat.com/documentation/en/red-hat-jboss-enterprise-application-platform//7.0/development-guide/chapter-8-contexts-and-dependency-injection-cdi

Issue:
The documentation mentions @Alternative but it does not mention @Specializes which is kind of connected. In certain cases you want to use @Alternative but find out that is not enough and that is when @Specializes comes into play.

Solution:
Add a subsection to 8.2.8. Alternative Beans where you mention @Specializes.
Weld doc has a great sample showing how you actually get from using alternatives to specialization and why. Something on a similar bases might be added here.

Please note that I am not entirely sure you should add this. It is surely not as common as alternatives and I can see the doc is very basic and general. However it is probably still more common that extensions which are present. So I will leave that up to you whether or not to add this (sub)section.