javax.portlet
Interfaces 
ActionRequest
ActionResponse
BaseURL
CacheControl
ClientDataRequest
Event
EventPortlet
EventRequest
EventResponse
MimeResponse
PortalContext
Portlet
PortletConfig
PortletContext
PortletPreferences
PortletRequest
PortletRequestDispatcher
PortletResponse
PortletSession
PortletURL
PortletURLGenerationListener
PreferencesValidator
RenderRequest
RenderResponse
ResourceRequest
ResourceResponse
ResourceServingPortlet
ResourceURL
StateAwareResponse
Classes 
GenericPortlet
PortletMode
PortletSessionUtil
WindowState
Enums 
PortletRequest.P3PUserInfos
Exceptions 
PortletException
PortletModeException
PortletSecurityException
ReadOnlyException
UnavailableException
ValidatorException
WindowStateException
Annotation Types 
ProcessAction
ProcessEvent
RenderMode