I posted this issue on Stack Overflow ( http://stackoverflow.com/questions/30258300/is-it-possible-to-annotated-the-interface-for-a-method-validation-using-beanvali?noredirect=1#comment48695870_30258300 ).

I have a structure in which a class implements an interface. The bean validation is defined on the interface, but the validation is not triggered.
If I change the interface to be an abstract class, the validation works.

@Stateless
    public class MyBean implements MyInterface{
            public String lookup(@NotNull String text){
                 return "found3";
            }
    }

public interface MyInterface {
    public String lookup(@NotNull String text);
}

public class HelloWorld {
    @Inject
    private MyInterface bean;

   public String getMessage() {
      return bean.lookup(null);
   }
}

I am attaching two zip files containing two versions of the project, one version with interface and the second with abstract class (this is the only difference between both).

Is there anything I can do to provide more information? (There is no message in the log)