The EAP 7.4 Migration Guide should document the app migration issue introduced by WFLY-12856.

Applications that access EJB management resource component-class-name will be affected by this issue. 

In previous EAP versions, the value of the resource component-class-name erroneously shows the bean's  name.  In current EAP version where this issue has been fixed, the value of the resource component-class-name shows the correct bean component class name.

Applications that depend on this resource should be alerted to this change, and make any necessary adjustment in the applications.