Following tests fail if I try to return Object:

Tests in error: 
  shouldNotShowVoidedNamesInFullRepresentation(org.openmrs.module.webservices.rest.web.v1_0.controller.openmrs1_8.PersonController1_8Test)
  shouldNotShowVoidedAddressesInFullRepresentation(org.openmrs.module.webservices.rest.web.v1_0.controller.openmrs1_8.PersonController1_8Test)
  shouldReturnTheAuditInfoForTheFullRepresentation(org.openmrs.module.webservices.rest.web.v1_0.controller.openmrs1_8.PersonController1_8Test)
  shouldNotShowVoidedAttributesInFullRepresentation(org.openmrs.module.webservices.rest.web.v1_0.controller.openmrs1_8.PersonController1_8Test)
  shouldGetFullByUuid(org.openmrs.module.webservices.rest.web.v1_0.controller.openmrs1_8.PersonController1_8Test)
  shouldReturnTheAuditInfoForTheFullRepresentation(org.openmrs.module.webservices.rest.web.v1_0.controller.openmrs1_8.PatientController1_8Test)
  shouldGetFullByUuid(org.openmrs.module.webservices.rest.web.v1_0.controller.openmrs1_8.PatientController1_8Test)
  shouldGetAll(org.openmrs.module.webservices.rest.web.v1_0.controller.openmrs1_8.PersonAttributeController1_8Test)