final String complexPropertyJson =
        "{\"__metadata\":{\"type\":\"RefScenario.c_City\"},\"PostalCode\":\"69124\",\"CityName\":\"Heidelberg\"}";
    JsonReader reader = prepareReader(complexPropertyJson);
    final EdmProperty property =
        (EdmProperty) MockFacade.getMockEdm().getComplexType("RefScenario", "c_Location").getProperty("City");
    EntityComplexPropertyInfo entityPropertyInfo = (EntityComplexPropertyInfo) EntityInfoAggregator.create(property);
    JsonPropertyConsumer jpc = new JsonPropertyConsumer();
    @SuppressWarnings("unchecked")
    Map<String, Object> result = (Map<String, Object>) jpc.readPropertyValue(reader, entityPropertyInfo, null, null);