Hibernate Criteria DetachedCriteria and Subquery

Question

DetachedCriteria cr = DetachedCriteria.forClass(DealerSales.class).setProjection(Property.forName("dealerCode"));
cr.add(Restrictions.eq("countryCode",01));

Criteria cr1 = session.createCriteria(BrandModelSales.class).add(Subqueries.propertyIn("dealerCode",cr));

Below is the exception which am getting:

SEVERE: Servlet.service() for servlet [spring] in context with path [/Scoreboard] threw exception [Request processing failed; nested exception is java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String] with root cause
java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String

where dealecode is stored as number in table and detachedcriteria is returning it as String
cast() method is also not working.....
Is thr any another ways to do it except HQL and native query?