ActionForward forward = this.checkContestAdminPermission(mapping, context, isProblemset, false);
if (forward != null) {
return forward;
}
ProblemPackage pack = (ProblemPackage) context.getSessionAttribute("ProblemPackage");
context.setSessionAttribute("ProblemPackage", null);
AbstractContest contest = context.getContest();
InputStream in = null;