Servlet BASIC authentication not working (web.xml attached)

[Gurumurthy Ramamurthy]

Hi,

1. I have enabled administrator security in websphere. When I give the admin page, it asks me username/password, it works well.
2. I have written a HelloWorld servlet (deployed in websphere app server) and given the BASIC authentication mechanism in web.xml as follows:

<?xml version="1.0" encoding="ISO-8859-1"?>

< !DOCTYPE web-app<br /> PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"<br /> "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>
<display-name>Examples</display-name>
<description>
Example servlets
</description>

<servlet>
<servlet-name>HelloWorld</servlet-name>
<servlet-class>HelloWorld</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>

<security-constraint>
<web-resource-collection>
<web-resource-name>Secured</web-resource-name>
<description></description>
<url-pattern>/*</url-pattern>
<http-method>GET</http-method>
<http-method>PUT</http-method>
</web-resource-collection>

<auth-constraint>
<description></description>
<role-name>administrator</role-name>
</auth-constraint>

<user-data-constraint>
<transport-guarantee>NONE</transport-guarantee>
</user-data-constraint>
</security-constraint>

<login-config>
<auth-method>BASIC</auth-method>
<realm-name>HelloServlet</realm-name>
</login-config>


</web-app>

If I give the URL to access this servlet, the window security box appears but when I give the username/password, it says "You are not authorized to view this page".