J_security_check stalls

Question

I have configured my struts web app to use JAZN authentication, in web.xml, shown partly below..
When i direct my browser I get directed to error.jsp.
Earlier I had configured the OC4J to use JAZN using JAZN admin tool,
I have configured orion-application.jar to use jazn (not principals) and created role mapping to jazn groups
I have also created users using jazn admin tool for jazn.com realm.
But does not work, the login page is shown and when i enter the correct login credentials it leads me to error.jsp! please help! (I have tested the login credentials using jazn admin tool.)
<!-- servlet security -->
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>application</param-name>
<param-value>ApplicationResources</param-value>
</init-param>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>validate</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
<security-role-ref>
<role-name>MyUser</role-name>
<role-link>My_USER</role-link>
</security-role-ref>
<security-role-ref>
<role-name>MyManager</role-name>
<role-link>My_MANAGER</role-link>
</security-role-ref>
</servlet>
<!-- Site security -->
<security-constraint>
<web-resource-collection>
<web-resource-name>action</web-resource-name>
<url-pattern>*.do</url-pattern>
</web-resource-collection>
<auth-constraint>
     <role-name>My_USER</role-name>
     <role-name>My_MANAGER</role-name>
</auth-constraint>
</security-constraint>     
<security-constraint>
<web-resource-collection>
<web-resource-name>xyz</web-resource-name>
     <url-pattern>index.jsp</url-pattern>
     </web-resource-collection>
     <auth-constraint>
     <role-name>My_USER</role-name>
     <role-name>My_MANAGER</role-name>
     </auth-constraint>
</security-constraint>     
<!-- Login configuration -->
<login-config>
<auth-method>FORM</auth-method>
<realm-name>jazn.com</realm-name>
<form-login-config>
<form-login-page>login.jsp</form-login-page>
<form-error-page>error.jsp</form-error-page>
</form-login-config>
</login-config>
<!-- Role declarations -->
<security-role>
<role-name>My_USER</role-name>
</security-role>
<security-role>
<role-name>My_MANAGER</role-name>
</security-role>

Answer 1

After few hours of wasteful hack, and browsing discussion forums... finally i found the answer in Jdev903 help. Jdev's embedded oc4j does not pick up the orion-application.jar from the project directory, whereas uses the <workspace name>-oc4j-app.xml in workspace directory!
Thanks for anyone attempting to help me...
thiyagu