This is for JDeveloper release:
Studio Edition Version 12.2.1.0.0
Build JDEVADF_MAIN_GENERIC_151011.0031.S
I use the wizard for Custom Application

I select from the Project Features "ADF Business Components"

Results of Features selection

When I want to extend the ADF Framework Classes the search and hierarchy does not display any of those classes.
I recheck the Features and they are correct:

When I look at the Libraries and Classpath nothing is there and I have to manually add those:

IS THIS A BUG?