Script - Count all children subfolder

Count all children folders - and subfolders into, recursion - into first level folder ( okm:root children folders ).

import com.openkm.api.*;
import com.openkm.bean.*;
import org.hibernate.Session;
import org.hibernate.Transaction;
import com.openkm.dao.HibernateUtil;
import org.hibernate.HibernateException;
import org.hibernate.Query;

class Util {
    public int childCount(String uuid)  {
        String qsUUIDList = "select uuid from NodeFolder nf where nf.parent=:parent";
        Session session = null;
        Transaction tx = null;
        int value = 0;
        List uuidList = new ArrayList();
        try {
            session = HibernateUtil.getSessionFactory().openSession();
            tx = session.beginTransaction();
            Query q = session.createQuery(qsUUIDList).setCacheable(true);
            q.setString("parent", uuid);
            uuidList = q.list();
            HibernateUtil.commit(tx);
            value = uuidList.size();
            print(value);
        } catch (HibernateException e) {
            HibernateUtil.rollback(tx);
        } finally {
            HibernateUtil.close(session);
        }

        for (String childUuid : uuidList) {
            value = value + childCount(childUuid);
        }
        return value;
    }
}

Util util = new Util();
for (Folder fld : OKMFolder.getInstance().getChildren(null, "/okm:root")) {
    print(fld.getPath()+"->"+util.childCount(fld.getUuid())+"<br/>");
}