jsp - Waffle Principle username is Null -


my index.jsp 

<%     if (request.getuserprincipal() != null) {      %>             user principal name <b><%= request.getuserprincipal().getname() %></b>.<br>     email <b><%= secur32util.getusernameex(secur32.extended_name_format.nameuserprincipal) %></b>.     <br><br>            <%          } else {             %>          no user principal identified.      <br><br>     <%             }

web.xml

<?xml version="1.0" encoding="iso-8859-1"?>  <web-app xmlns="http://java.sun.com/xml/ns/javaee"    xmlns:xsi="http://www.w3.org/2001/xmlschema-instance"    xsi:schemalocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"    version="2.5">    <filter>     <filter-name>securityfilter</filter-name>     <filter-class>waffle.servlet.negotiatesecurityfilter</filter-class>        <init-param>         <param-name>principalformat</param-name>         <param-value>fqn</param-value>     </init-param>     <init-param>         <param-name>roleformat</param-name>         <param-value>both</param-value>     </init-param>     <init-param>         <param-name>allowguestlogin</param-name>         <param-value>true</param-value>     </init-param>     <init-param>         <param-name>securityfilterproviders</param-name>         <param-value>             waffle.servlet.spi.negotiatesecurityfilterprovider             waffle.servlet.spi.basicsecurityfilterprovider         </param-value>     </init-param>     <init-param>         <param-name>waffle.servlet.spi.negotiatesecurityfilterprovider/protocols</param-name>         <param-value>             negotiate             ntlm         </param-value>     </init-param>     <init-param>             <param-name>waffle.servlet.spi.basicsecurityfilterprovider/realm</param-name>         <param-value>wafflefilterdemo</param-value>     </init-param>   </filter>   <filter-mapping>     <filter-name>securityfilter</filter-name>     <url-pattern>/*</url-pattern>   </filter-mapping>        <!-- system information helpful debugging -->   <servlet>     <servlet-name>waffleinfo</servlet-name>     <servlet-class>waffle.servlet.waffleinfoservlet</servlet-class>   </servlet>   <servlet-mapping>     <servlet-name>waffleinfo</servlet-name>     <url-pattern>/waffle</url-pattern>   </servlet-mapping>   </web-app>

i have incorporated waffle single sign on jsp application , not able username of person using webpage on client side . error no user principal identified. correspondes principle user being null. please new single sing on using waffle


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