Note that even if we relax the check it will not be always possible to resolve all the type variables in the runtime type, i.e. the subsequent fire() invocation might fail. E.g. the following snippet would result in IllegalArgumentException:

@Inject

Event<Object> event;

public void testSelectSubtypeWithWildcard() {

  List<String> updatedList = new ArrayList<>();

  updatedList.add("foo");

  // This is ok

  Event<List<?>> child = event.select(new TypeLiteral<List<?>>() {});

  // This will fail

  child.fire(updatedList);

}

I'm not so sure this should be fixed anymore.