build error -> Webdynpro project -> NWDS 7.31

Hi Experts,

Just I have started to work with NWDS 7.31 to work with SAP Portal 7.40 system.

In my first application I want to integrate UME user / role information. And in which when I am trying to add external jar file for IWDClient, IUser interface I am getting while deployment of the code below. And when I remove the (com.sap.security.api.jar) file from NWDS the deployment works fine.

Let me know for interface the IUser, IRole, IGroup is there any specific jar for UME to work with NWDS 7.31.

try{

     IWDClientUser iwdc = WDClientUser.getCurrentUser();

     com.sap.security.api.IUser usr;

  }

  catch (WDUMException ee) {

  }

Regards,

Hanif