getting at the defaultsmodule in 2.1.x

[Jorg Heymans]

Hi,
I am currently porting my app from 2.0.x to 2.1.x.
In components i used to do
       ComponentSelector selector =
            (ComponentSelector)serviceManager.lookup(
                InputModule.ROLE + "Selector");
        InputModule inputModule = (InputModule)selector.select(module);
to retrieve values set in the defaultsmetamodule.
Now in 2.1.x this does not work anymore, more specifically the 
componentselector is not returned anymore by the servicemanager.

After a bit of introspection i changed it to
        WrapperServiceSelector selector =
                (WrapperServiceSelector) serviceManager.lookup(
                        InputModule.ROLE + "Selector");
        InputModule inputModule = (InputModule) selector.select(module);
Is this the standard way ? I am getting the desired results, just 
wondering if i'm not relying anything i'm not supposed to rely on :)

Kind Regards
Jorg Heymans