$ rpm -qp --provides simplemaven-1.0-2.fc21.noarch.rpm
mvn(com.example:simplemaven) = 1.0
mvn(simplemaven:simplemaven) = 1.0
simplemaven = 1.0-2.fc21
Now it doesn't matter if some other package depends on either of these listed artifact. Both dependencies will always be satisfied with your package.
One could try to fix dependencies in all the dependent packages instead of adding an alias to single package. It's almost always wrong thing to do.