EJB Application

Hi...

I am working out simple Calculator application (EJB).. i have taken this sample application from SDN.... In this application within the application.xml ...in the module tab...in the ContextRoot: i have specified /Calculator.. as given in the sample apllication... but while deploying the following error occurs..

<b>Incorrect request URL: /Calculator/Calculator.jsp

Details:</b> Use case sensitive URL and do not request a file outside the root directory of the server

can any one tell me.. what is the error...

Regards,

Arun.