Can a method with no access modifier be overriden by a method marked protected?
Resposta: Yes, Overrinden method are allowed to have less restrinction, and since protected is less restricted then default (package), this is allowed.
não entendo, o metodo tem acesso default e é sobreescrito por outro com acesso protegido (protected)!? Achei que overrinden so houvesse através de herança.