com.liferay.portal.util
Interfaces 
CustomJspRegistry
LayoutTypePortletFactory
Portal
PortalPortEventListener
PortalPortProtocolEventListener
PortletLister
PortletListerFactory
Classes 
CustomJspRegistryUtil
LayoutTypePortletFactoryUtil
PortalSimpleDateFormat
PortalUtil
PortletCategoryKeys
PortletKeys
PortletListerFactoryUtil
SessionClicks
SessionClicks_IW
SubscriptionSender
URLUtil