...
 import  com.ibm.wps.pb.service.PropertyBrokerService;
 import  com.ibm.wps.struts.action.StrutsAction;
...

 public   class  CategoriesAction  extends  StrutsAction {
	 private  PropertyBrokerService pbService;
	...
	 public  ActionForward execute(ActionMapping mapping, ActionForm form, PortletRequest request)  throws  Exception {
         ...

			Context ctx =  new  InitialContext();
			pbService = (PropertyBrokerService)ctx.lookup("portletservice/com.ibm.wps.pb.service.PropertyBrokerService");
         ...
         }
}

...
 import  com.ibm.portal.portlet.service.PortletServiceHome;
 import  com.ibm.portal.propertybroker.service.PropertyBrokerService;
 import  com.ibm.portal.struts.action.StrutsAction;
 import  org.apache.jetspeed.portlet.PortletRequest;
...

 public   class  EchoAction  extends  StrutsAction {

	PropertyBrokerService pbService =  null ;
    
	 public  ActionForward execute(ActionMapping mapping, ActionForm form, PortletRequest request, PortletResponse response)  throws  Exception {
         ...
				Context ctx =  new  InitialContext();
				PortletServiceHome serviceHome = (PortletServiceHome)ctx.lookup("portletservice/com.ibm.portal.propertybroker.service.PropertyBrokerService");
				pbService = (PropertyBrokerService)serviceHome.getPortletService(com.ibm.portal.propertybroker.service.PropertyBrokerService. class );
    	}
    ........... 
}