LPS-42924 Use classNameService instead of PortalUtil in ***ServiceImpl
SOS-1979 Expose fetch method
SOS-1979 Autogenerated
SOS-1979 Delete notification if user deleted the thread already
LRDCOM-4248 find_kb_article will forward to kb display if kb display portlet exists
LRDCOM-4248 Rename displayPortlet to selPlid
LRDCOM-4248 Move logic to a separate method