| Name | Package | Description |
| GenericPortlet | javax.portlet | The GenericPortlet class provides a default implementation
for the Portlet interface. |
| PortletMode | javax.portlet | The PortletMode class represents
the possible modes that a portlet can assume. |
| PortletSessionUtil | javax.portlet | The PortletSessionUtil class helps identify and decode
attributes in the PORTLET_SCOPE scope of the PortletSession
when accessed through the HttpSession an from within calls to methods
of the HttpSessionBindingListener interface. |
| WindowState | javax.portlet | The WindowState class represents
the possible window states that a portlet window can assume. |