code: @Override
      protected KatharsisInvokerBuilder createKatharsisInvokerBuilder() {
          return new KatharsisInvokerBuilder()
                  .resourceSearchPackage(getResourceSearchPackage())
                  .resourceDefaultDomain(getResourceDefaultDomain())
                  .jsonServiceLocator(new SampleJsonServiceLocator());
      }
docs: NOTE: A class extending this must provide a platform specific {@link JsonServiceLocator}
  instead of the (testing-purpose) {@link SampleJsonServiceLocator} below
  in order to provide advanced dependency injections for the repositories.