We are facing weird injection issues in Widfly due to CDI changes. We have interface
public interface Command<I, O> {
}
and many classes implement this interface like this
public class ApproveUserRequests implements Command<ApproveUserRequestsRequest, List<String>> {
}
Application listener classes likes to get list of all classes available and uses injection like this
@Inject
private Instance<Command<I, O>> mActions;
However instance returned by mActions were always null. After debugging source found that the only way to get list of all instances is to use
@Inject
private Instance<Command<?, ?>> mActions;
Also we faced injection issues while using generic types , however using wildcard type helped us.
