IUWLService uwlService = (IUWLService) WDPortalUtils.getServiceReference(IUWLService.ALIAS_KEY); 
PortalRuntime.getRuntimeResources().getService(IUWLService.ALIAS_KEY); 

 
  // look up UWL service private														 
  IUWLService findService() throws NamingException {														 
    Properties env = new Properties();														 
          env.put(InitialContext.INITIAL_CONTEXT_FACTORY, "com.sapportals.portal.prt.registry.PortalRegistryFactory");														 
          // create initial context														 
          InitialContext ctx = new InitialContext(env);														 
          // retrieve UWL service														 
          IUWLService uwlService = (IUWLService) ctx.lookup("/broker/services/" + IUWLService.ALIAS_KEY); return uwlService;														 
  }														 
	 

 
public void retriveItems() {														 
try {														

            // look up UWL service														

            IUWLService uwlService = findService();														

            // define session timeout period														

            final int sessionIdleTimeout = 60;														

            // create context														

            UWLContext uwlContext = new UWLContext();														

            // find logged in user.														

            IUser user = //TODO Get the user for whom the items are to be retrieved.														

            uwlContext.setUser(user);														

            uwlContext.setLocale(Locale.getDefault());														

            // begin session IUWLSession uwlSession;														

            uwlSession = uwlService.beginSession(uwlContext, sessionIdleTimeout);														

            uwlContext.setSession(uwlSession);														

            IUWLItemManager itemManager = uwlService.getItemManager(uwlContext);														

            QueryResult result = itemManager.getItems(uwlContext, null, null);														

            ItemCollection items = result.getItems();														

             Item item = null;														

            for (int i = 0; i < items.size(); i++) {														

              item = items.get(i);														

              // item.getSubject() can give you Task's Subject string														

              // item.getAttribute("taskId").getStringValue() gives you taskId														

              // (a check for null should be added also to avoid NullPointerException).														

              Map params = new HashMap();														

              params.put("taskId", item.getExternalId());														

              String executionURL = WDURLGenerator.getApplicationURL("sap.com/tc~bpem~wdui~taskinstance", "ATaskExecution", params);														

              //TODO Add code send mail which contains above URL.														

            }														

    } catch (UWLException e) {														

            e.printStackTrace();														

          } catch (NamingException e) {														

            e.printStackTrace();														

          }														

  }