Smack api exception in jsp page

This is my JSP code to connect to the gtlak when i am upload this page on local apache tomcat is working fine but when i am upload it on a live

server it give me exception

XMPPError connecting to talk.google.com:5222

and when i try to change port

SASL authentication PLAIN failed: not-authorized

<%@page

    import="java.io.IOException,

                org.jivesoftware.smack.ChatManager,

                org.jivesoftware.smack.ConnectionConfiguration,

                org.jivesoftware.smack.ConnectionListener,

                org.jivesoftware.smack.MessageListener,

                org.jivesoftware.smack.XMPPConnection,

                org.jivesoftware.smack.XMPPException,

                org.jivesoftware.smack.packet.Message,

                org.jivesoftware.smack.packet.Presence"%>

<%!

ConnectionConfiguration connConfig = new ConnectionConfiguration("talk.google.com", 5222, "gmail.com");

XMPPConnection connection = new XMPPConnection(connConfig);

public void jspInit()

{

}

public void jspDestroy()

{

    connection.disconnect();

    System.out.println("Never gets executed ");

}

%>

<%

System.out.println("Starting IM client");

try

    {

    connection.connect();

    response.getWriter().write("Connected to " + connection.getHost());

    }

    catch (XMPPException ex)

    {

             response.getWriter().write("Failed to connect to " + connection.getHost());

    }

try

    {

    connection.login("userid@gmail.com", "testing");

    response.getWriter().write("Logged in as " + connection.getUser());      

    Presence presence = new Presence(Presence.Type.available);

    connection.sendPacket(presence);     

    }

catch (XMPPException ex)

    {

    response.getWriter().write("Failed to log in as " +ex.getMessage()+""+connection.getUser());

    }

%>