The current (Java) "style" that integration tests are written in in Fineract is... really ugly!
They are from a bygone era when Java had no generic. All those weird java.util.HashSet, with a lot of java.lang.Object etc. in tests are... so not 21st century style.
I don't really have the answer here, yet - but perhaps others have ideas - how does one write Java (test) code in 2020 which deals with JSON in a nicer way?
Does REST Assured (http://rest-assured.io) meanwhile offer a better way to do this kind of thing?
Could https://github.com/skyscreamer/JSONassert be of use and interest for this purpose?
BTW if using REST Assured better than we are is part of the answer here, then let's first do