Jetspeed 2 provides the four following high level security services:
UserManager
                        : Service providing user management capabilities.
                    GroupManager
                        : Service providing group management capabilities.
                    RoleManager
                        : Service providing role management capabilities.
                    PermissionManager
                        : Service providing permission management capabilities.
                    
                In order to access Jetspeed high level security services in your portlets, Jetspeed provide a custom
                extension to the portlet.xml metadata.  All Jetspeed custom metadata is located in the 
                jetspeed-portlet.xml configuration file in the WEB-INF folder of the portlet
                application.  The custom js:services tag provides the ability to expose portal services
                to a portlet through the javax.portlet.PortletContext.
            
                Jetspeed portal services are configured in the spring assembly file located in the portal 
                WEB-INF/assembly/jetspeed-services configuration file.  The UserManager for instance
                is configured as follow:
                
    
<!-- Portlet Services  -->
<bean id="PortalServices" 
  	 class="org.apache.jetspeed.services.JetspeedPortletServices" >
   <constructor-arg>
      <map>
  	     ...
  	     <entry key="UserManager">
  	   	    <ref bean="org.apache.jetspeed.security.UserManager"/>
  	   	 </entry>
  	   	 ...
      </map>
   </constructor-arg>
</bean>
                
                The UserManager services is then available to be loaded in a specific portlet
                PortletContext.  Portlet developers need to specify the portal services they
                would like to use.  The following example shows how to expose the portal UserManager 
                to a portlet application:
                
    
<js:services>
   <js:service name='UserManager'/>
</js:services>
                
                Once a portal service is loaded in the portlet context, the portlet implementation (which typically
                extends javax.portlet.GenericPortlet) can access the service as follow:
                
    
PortletContext context = getPortletContext();
userManager = (UserManager) context.getAttribute(CommonPortletServices.CPS_USER_MANAGER_COMPONENT);
                CommonPortletServices.CPS_USER_MANAGER_COMPONENT = "cps:UserManager"