EP development with JDI

Hi,

I am developing portal module using JDI scenario 2+.

The DC I am working on use IURLGeneratorService interface, and I want to make my DC dependent on SAP DC which define this interface. According SAP documentation this interface contained in: com.sap.netweaver.bc.rf.service.par or bc.rf.global.service.urlgenerator_api.jar however I can't find the DC wich contains this jars.

My question is how to define this dependency in this case?

Best Regards,

Victor