PersonalShareableContentItem item = (PersonalShareableContentItem) getSingleItemByKeyForAction(
pm, request, className);
String shareWith = request.getParameter(ReqParamNames.SHARE_WITH
.getParamName());
SharingType sharingType = request.getSharingType();
SharedItemReff newShare = null;
boolean shareExists = false;
int remove = -1;
List<SharedItemReff> sharings = null;