problem in hibernate

[jperson]

import javax.swing.JOptionPane;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

public class insert {
 
    public static void main(String[] args) {
       try {
            Configuration cfg = new Configuration();
            SessionFactory factory = cfg.configure().buildSessionFactory();
            Session session = factory.openSession();

           String id = JOptionPane.showInputDialog("enter your id");
           String entity = JOptionPane.showInputDialog("enter your entity");
           String record = JOptionPane.showInputDialog("enter your record");

            Main m = new Main();

            m.setId(id);
            m.setEntity(entity);
            m.setRecord(record);

            Transaction tx = session.beginTransaction();
            session.saveOrUpdate(m);
            tx.commit();
            JOptionPane.showMessageDialog(null, "succesfully inserted");

            session.close();
        } catch (Exception e) {
            JOptionPane.showMessageDialog(null, e);
        }
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
  <class name="Main" table="ifc">
    <id column = "id" name="id" type="string"/>
    <property column = "entity" name="entity" type="string"/>
    <property column = "record" name="record" type="string"/>
  </class>
</hibernate-mapping>

my problem when i set values to id, entity and record - i have this exception

Cannot insert the value NULL into column 'record'

although i set value to it

please help me ?

[AadiSri]

Can you show the table description?