Hello everybody,
I'm running into the problem in a (not written by me) application, that internal structures of Spring were used as part of the payload of REST APIs. As part of a Spring update serialisation changed under the hood and silently APIs in consequence broke. This means that Spring Rest methods (annotated with @XXXMapping) parameter or response objects somehow use classes from the Spring package.
I tried to find further occurences of this problem in source using jQAssistant. This should in principle be possible (the data is here) but Cipher queries quickly started to get (too) complex (for me) as soon I tried to cover generics, inheritance and transitive analysis of attribute types. 
Has somebody already tried such thing and / or has an idea how this can be approached in a managable way? Or is this realistically beyond practical use of jQAsisistant?
Best wishes
Tim