Get list of users in liferay -

i want display users list on liferay. , having problem it. here action class.

public void userlist(actionrequest actionrequest, actionresponse actionresponse) throws systemexception {     // todo logic user code     try {         int countuser = userlocalserviceutil.getuserscount();         log.info("user present in db" + countuser);         list < user > users = userlocalserviceutil.getusers(0, countuser);         portletsession sessions = actionrequest.getportletsession();         sessions.setattribute("users", users);         log.info("session set portlet" + sessions.getattribute("users"));         (user user: users) {             if (user != null) {                 log.info("userid--:" + user.getuserid() + "usercompanyid-:" + user.getcompanyid() + "useremail-:" + user.getemailaddress() +                     "userscreenname--:" + user.getscreenname());             }         } 

and how trying users list on jsp.

<%@page import="com.test.userlist.userlist"%> <%@page import="java.util.arraylist"%> <%@page import="com.liferay.portal.model.user"%> <%@page import="java.util.list"%> <%@page import="javax.portlet.portletsession"%> <%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %> <%@taglib uri="http://alloy.liferay.com/tld/aui" prefix="aui" %>  <portlet:defineobjects /> <%      portletsession session2 = renderrequest.getportletsession();      arraylist<user> users = (arraylist) session2.getattribute("users");       if(users!=null){ %>     <b>name: </b><%=users.get(users) %> <%} %> 

and getting value null want display users name in list

there no issue logic in putting user-list in session, list getting populated , set in session accurately. however, on jsp, there couple of issues:

1. renderrequest undefined.
2. cast exception (unmodifiablelist cannot cast java.util.arraylist) user-list.
3. you not iterating list , getting user objects properly.

so, need following on jsp:

<%@page import="java.util.arraylist"%> <%@page import="javax.portlet.renderrequest"%> <%@page import="com.liferay.portal.model.user"%> <%@page import="javax.portlet.portletsession"%>  <%     renderrequest renderrequest =          (renderrequest) request.getattribute("javax.portlet.request");     portletsession session = renderrequest.getportletsession();     list<user> users = (list<user>) session.getattribute("users");      if(users != null){         for(user user : users){ %>             <b>name: </b><%=user.getlastname() + ", " + user.getfirstname() %><br />         <%}     }%>  

(tested code)