Thanks la lot for your replies. I tried creating a .xlsx file using POI 3.5 through a separate java program and it got created properly. Now i tried integrating the code into my Servlet. When executing my application(i.e when the link which creates the excel is clicked), i am getting the below error.
I have placed the jars related to the POI under WEB-INF/lib.
Do i need to add anything in the Weblogic server classpath?
Kindly let me know the solution.