Hibernate Add Sort

import org.hibernate.Criteria;
import org.hibernate.Hibernate;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.criterion.Expression;
import org.hibernate.criterion.Order;


if (status!=null){
Criteria criteria = oSession.createCriteria(com.vidasprint.core.pojo.K_KCLASS.class);
criteria.addOrder(Order.asc( "CLASSNAME" ).ignoreCase());
oK_KClass_List = criteria.add(Expression.in("STATUS", status)).list();

} else{
Criteria criteria = oSession.createCriteria(com.vidasprint.core.pojo.K_KCLASS.class);
criteria.addOrder(Order.asc( "CLASSNAME" ).ignoreCase());
oK_KClass_List = criteria.list();

}