I’m afraid so, yes. I also tried out your example and it works if I add a .returns() after the .map() (as you did). Somehow the TypeExtractor seems to be acting up.
> On 02 Mar 2016, at 11:12, Simone Robutti <simone.robu...@radicalbit.io> wrote: > > >Error:(43, 87) java: no suitable method found for > >returns(java.lang.Class<java.util.Map>) > method