Hi Apu,
Did you add it using Add External JARs.. option??
You can use either Add ExternalJARs option or Add Variable option, after you add without deploying into the server you can check these jars are added to the EAR file or not by right click on EAR project and Export->SAP EAR File to the local directory, open it using winzip tool see the jars are exist or not.
