public ActionForward cancel(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) {
String exemptionId = request.getParameter("externalId");
PhdGratuityExternalScholarshipExemption exemption =
(PhdGratuityExternalScholarshipExemption) FenixFramework.getDomainObject(exemptionId == null ? (String) request
.getAttribute("externalId") : exemptionId);
PhdGratuityEvent event = (PhdGratuityEvent) exemption.getEvent();
PhdIndividualProgramProcess process = event.getPhdIndividualProgramProcess();
request.setAttribute("processId", process.getExternalId());
return viewDebtsForProcess(mapping, form, request, response);
}