Violation of Liskov substitution principle in JSAP file

[andre-bisa]

I was working on DTN branch and I saw what, in my opinion, is an important error done in design time. The class JSAP violates the Liskov substitution principle (https://en.wikipedia.org/wiki/Liskov_substitution_principle), to be more accurate in that class is written that the JSAP class IS-A SPARQL11SEProperties, but this is not correct. The original thought, probably, was that JSAP class USES the SPARQL11SEProperties class. The JSAP class is an abstraction of a real configuration file, that cannot be itself a collection of properties! This is an important difference that, in my opinion, should be fixed