REG:Customizing Logon Page in SAP EP 7.3

Hi All,

I am trying to customize the Logon Page in SAP EP 7.3 using the below link

http://help.sap.com/saphelp_nwce10/helpdata/en/23/c0e240beb0702ae10000000a155106/frameset.htm

I am able to deploy the ear and while i try to run the logonPage.jsp using servlet name , i am getting the following error

Cannot process an HTTP request to servlet [logonPage.jsp] in [tc~sec~ume~logon~ui] web application.
[EXCEPTION

java.lang.InstantiationException: ID018236: Cannot instantiate bean. java.lang.ClassNotFoundException: class com.sap.engine.applications.security.logon.beans.ResourceBean : java.lang.InstantiationException: com.sap.engine.applications.security.logon.beans.ResourceBean

at JEE_jsp_logonPage_506130250_1335437577000_1335437579372._jspService(JEE_jsp_logonPage_506130250_1335437577000_1335437579372.java:54)

Can any one help on this?

Regards,

Srinivasan V