I also generified the return type of Fragment arg builder methods.

The generated class of GenericClient is :

public final class GenericClient_<T extends Object >
    implements GenericClient
{

    private String rootUrl;
    private RestTemplate restTemplate;

    public GenericClient_(Context context) {
        rootUrl = "";
        restTemplate = new RestTemplate();
        restTemplate.getMessageConverters().clear();
        restTemplate.getMessageConverters().add(new StringHttpMessageConverter());
    }
}

I think it should implement GenericClient<T> instead of GenericClient.

@yDelouis you are right.

Fixed and rebased to develop.

@yDelouis can we merge this?

Is there some generic fragment, view and bean to see your changes ?

SomeGenericViewGroup in the compile time test. There is no generic Fragment in the code base, i guess i should add one in the compile time test.

There is a generic Fragment in #1445, so i do not want to add it here. Please copy it for your test.