In CDI 1.2 spec
11.5.7. ProcessInjectionPoint event
The container must fire an event for every injection point of every Java EE component class
supporting injection that may be instantiated by the container at runtime, including every managed bean declared using @ManagedBean, EJB session or message-driven bean, bean, interceptor or decorator.
The JavaEE component classes are mentioned in JavaEE platform EE.5-1, which includes servlets, servlet filters, entity listeners etc.