User Authentication Failed error when trying to display a JSP portlet

The steps carried out are as follows :
1. Created a JSP file named "c.jsp" and deployed it under 902_MidTier_Home\j2ee\home\default-web-app\examples\jsp
2. Created a table named USER_TABLE under Scott schema to store the usernames and passwords to validate this JSP application.
3. Registered this JSP as an external application with the following values :
Application Name           : RAGHU
Login URL          : http://hostname:port/j2ee/examples/jsp/c.jsp
User Name/ID Field Name     : username
Password Field Name     : password
Type of Authentication Used : POST
3. Clicked on the External Application and entered the username as USER1 and password as USER1 ( These values are available
under USER_TABLE for comparison ). Then it shows the message "Hi User1 .. Welcome message"
4. Now created a directory named JSPSAMPLE under "WEB-INF\Providers" and put the provider.xml file under this.
Created a raghu.properties file and placed it under "WEB-INF\deployment".
5. Now tested the testpage using the URL " http://hostname:port/jpdk/providers/raghu " and it works fine.
6. Registered this as a provider in Portal and added this portlet onto a page. Assigned this page to a newly created user.
It gives the message " Authentication Failed - Update Login Information " which is expected. I click on the link and
it takes me to the external application username password. I enter the credentials but this time it comes back again
to the page with the same message " Authentication Failed - Update Login Information ".
7. Basically the values are not passed to the Username and Password in jsp page which is why the problem occurs.
The JSP Code used is as follows :
<%@ page import="java.sql.*" %>
<HTML>
<HEAD><TITLE>DB Connectivity test</TITLE></HEAD>
<BODY BGCOLOR="#FFFFFF">
<CENTER>
<B>user_table</B>
<BR><BR>
<%
String username = request.getParameter("username");
String password = request.getParameter("password");
Connection conn = null;
try
Class.forName("oracle.jdbc.driver.OracleDriver");
conn = DriverManager.getConnection("jdbc:oracle:thin:@hostname:1521:iasdb","scott","tiger");
Statement stmt = conn.createStatement();
String query = "SELECT * FROM user_table where userid= '"+ username +"' and passwd = '" + password + "' " ;
ResultSet rs = stmt.executeQuery(query);
while(rs.next())
out.println("<TR>");
out.println(" <TD> hi " + rs.getString("userid") + ", welcome</TD>");
out.println("</TR>");
out.println("</TABLE>");
catch(SQLException e)
out.println("SQLException: " + e.getMessage() + "<BR>");
while((e = e.getNextException()) != null)
out.println(e.getMessage() + "<BR>");
out.println("invalid userid,password");
catch(ClassNotFoundException e)
out.println("ClassNotFoundException: " + e.getMessage() + "<BR>");
finally
//Clean up resources, close the connection.
if(conn != null)
try
conn.close();
catch (Exception ignored) {}
%>
</CENTER>
</BODY>
</HTML>
The Provider.xml file used is as follows :
<?xml version="1.0" encoding="UTF-8"?>
<?providerDefinition version="3.1"?>
<provider class="oracle.portal.provider.v2.http.URLProviderDefinition">
     <providerInstanceClass>oracle.portal.provider.v2.http.URLProviderInstance</providerInstanceClass>
     <session>true</session>
     <authentication class="oracle.portal.provider.v2.security.Authentication">
          <authType>ExternalApp</authType>
          <userFieldName>username</userFieldName>
          <userPwdName>password</userPwdName>
          <errorPageMessages>Raghu,Please sign in,Sign me up!</errorPageMessages>
     </authentication>
     <portlet class="oracle.portal.provider.v2.http.URLPortletDefinition">
          <id>1</id>
          <name>RaghuPortlet</name>
          <title>Raghu Mail Portlet</title>
          <description>This portlet is to test Integration services using mail.yahoo.com</description>
          <timeout>100</timeout>
          <timeoutMessage>Raghu timed out</timeoutMessage>
          <showEdit>false</showEdit>
          <showEditDefault>false</showEditDefault>
          <showPreview>false</showPreview>
          <showDetails>false</showDetails>
          <hasHelp>false</hasHelp>
          <hasAbout>false</hasAbout>
          <acceptContentType>text/html</acceptContentType>
          <registrationPortlet>false</registrationPortlet>
          <accessControl>public</accessControl>
          <renderer class="oracle.portal.provider.v2.render.RenderManager">
               <showPage class="oracle.portal.provider.v2.render.http.URLRenderer">
                    <pageUrl>http://172.17.24.235:8888/c.jsp</pageUrl>
                    <contentType>text/html</contentType>
                    <filter class="oracle.portal.provider.v2.render.HtmlFilter">
                         <useAuthLinks>true</useAuthLinks>
                         <headerTrimTag>&lt;table width="100%" cellpadding=0 cellspacing=0 border=0>&lt;tr>&lt;td bgcolor=#9bbad6></headerTrimTag>
                         <footerTrimTag>&lt;table width="100%" cellpadding=2 cellspacing=1>&lt;tr>&lt;td bgcolor=#9bbad6></footerTrimTag>
                         <convertTarget>true</convertTarget>
                         <redirectUrlFieldName>.done</redirectUrlFieldName>
                    </filter>
               </showPage>
          </renderer>
          <securityManager class="oracle.portal.provider.v2.security.URLSecurityManager">
               <authorizType>registered</authorizType>
          </securityManager>
     </portlet>
</provider>
The Contents of raghu.properties file
serviceClass=oracle.webdb.provider.v2.adapter.soapV1.ProviderAdapter
loaderClass=oracle.portal.provider.v2.http.DefaultProviderLoader
showTestPage=true
definition=providers/raghu/provider.xml
autoReload=true
Any inputs regarding why the values are passed properly in case of External Application but not so when registered as
a portlet in Portal.
Regards
Satish G

As I can see from the information posted, you are trying to
use URL-based portlet's SSO feature, though not in a correct
way.
The SSO feature of URL-based portlets relie on the usage
of Cookies as authentication tokens. For example, in the
present context, http://hostname:port/j2ee/examples/jsp/c.jsp
will write a cookie to the client upon successfull authentication.
Subsequent access to the same JSP or some other JSP in the same
workspace should be checking for the existence of this particular
cookie at the client side and if found should not prompt for
user information again.
If you can fine tune your existing applications as per above
conditions, then everything should work fine. Else you might
want to use page parameters to pass user information.
For more information on page parameters, please visit
http://portalstudio.oracle.com/servlet/page?_pageid=350&_dad=ops&_schema=OPSTUDIO&12678_PDKHOME902_39847486.p_subid=249821&12678_PDKHOME902_39847486.p_sub_siteid=73&12678_PDKHOME902_39847486.p_edit=0#NEW1

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    Hi psamp1,
       Were you able to solve this problem?
       We have exactly the same issue...
    Thanks
    John
    Edited by: John Chinnappan on Mar 29, 2011 8:06 AM

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    If your query is taking 6 minutes to execute, then try to tune it. I don't think any user will accept this and moreover its well over the page timeout time limit.
    --Shiv                                                                                                                                                                                                                                                                                                                                                       

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    Hi,
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    atg.repository.RepositoryException: No property named "null" could be found in the item descriptor "siteTemplate".
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         at atg.repository.query.QueryCache.executeUncachedQuery(QueryCache.java:693)
         at atg.repository.query.QueryCache.populateEntry(QueryCache.java:912)
         at atg.repository.query.QueryCache.executeCachedQuery(QueryCache.java:433)
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         at atg.adapter.gsa.GSAView.executeQuery(GSAView.java:285)
         at atg.remote.assetmanager.browse.service.RQLRetriever.retrieveItems(RQLRetriever.java:118)
    Has anyone encountered this issue before?

    Are you running both SiteAdmin and SiteAdmin.Versioned on your publishing server?
    Also have you done any customization in SiteRepository?
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