Comment #1 on issue 495 by simon.de...@gmail.com: Parametrized Types - Generics http://code.google.com/p/moose-technology/issues/detail?id=495
I suggest to use the EntityState>>attributes cache of MooseEntity to store extended properties like #parameterTypes. And declare this extension in Famix-Java. The cache was made for such language-specific extensions which require states.