Help with JTable ... ClassCastException

Hi all,

I'm writing a GUI to show a JTable cointaining data from a db table
(after I'll add also buttons to Add, Update and Delete rows). I need to
have different table fields and not only strings.

I've used Hibernate to do the select and then passed the list to a
Vector containing ConfigPersonale objects (my table bean).

I get this exception running the GUI:

********************************
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException:
com.ale.ts.persistence.ConfigPersonale cannot be cast to java.util.Vector
    at
javax.swing.table.DefaultTableModel.justifyRows(DefaultTableModel.java:251)
    at
javax.swing.table.DefaultTableModel.setDataVector(DefaultTableModel.java:207)
    at javax.swing.table.DefaultTableModel.<init>(DefaultTableModel.java:142)
    at
com.ale.ts.view.ConfigPersonaleFrame$1.<init>(ConfigPersonaleFrame.java:42)
    at
com.ale.ts.view.ConfigPersonaleFrame.<init>(ConfigPersonaleFrame.java:43)
    at com.ale.ts.view.TS_UI$3.actionPerformed(TS_UI.java:100)
    at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
    at
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
    at
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
    at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
    at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:809)
    at
javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:850)
    at java.awt.Component.processMouseEvent(Component.java:6290)
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
    at java.awt.Component.processEvent(Component.java:6055)
    at java.awt.Container.processEvent(Container.java:2039)
    at java.awt.Component.dispatchEventImpl(Component.java:4653)
    at java.awt.Container.dispatchEventImpl(Container.java:2097)
    at java.awt.Component.dispatchEvent(Component.java:4481)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4575)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4236)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4166)
    at java.awt.Container.dispatchEventImpl(Container.java:2083)
    at java.awt.Window.dispatchEventImpl(Window.java:2482)
    at java.awt.Component.dispatchEvent(Component.java:4481)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:648)
    at java.awt.EventQueue.access$000(EventQueue.java:84)
    at java.awt.EventQueue$1.run(EventQueue.java:607)
    at java.awt.EventQueue$1.run(EventQueue.java:605)
    at java.security.AccessController.doPrivileged(Native Method)
    at
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
    at
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
    at java.awt.EventQueue$2.run(EventQueue.java:621)
    at java.awt.EventQueue$2.run(EventQueue.java:619)
    at java.security.AccessController.doPrivileged(Native Method)
    at
java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:618)
    at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
********************************

****************************************
public class ConfigPersonaleFrame extends JFrame {

    private JPanel contentPane;
    private QueryConfigPersonale queryConfpers = new QueryConfigPersonale();
    private JTable table;

    public ConfigPersonaleFrame() {
        setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        setBounds(100, 100, 450, 300);
        contentPane = new JPanel();
        setAlwaysOnTop(true);
        setTitle("Configurazione Personale");
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);

        table = new JTable();
        String[] columnNames_a = {"A", "B", "C", "D", "E", "F", "G", "H", "I",
"J", "K", "L", "M", "N", "O", "P", "Q"};
        Vector<String> columnNames = new
Vector<String>(Arrays.asList(columnNames_a));
        Vector<ConfigPersonale> dataTable = queryConfpers.getConfigPersonale();

        table.setModel(new DefaultTableModel(
                dataTable, columnNames) {
            Class[] columnTypes = new Class[] {
                Integer.class, String.class, String.class, Double.class,
Double.class, Integer.class, Double.class, String.class, Double.class,
Double.class, Double.class, Double.class, Double.class, Double.class,
Double.class, Boolean.class, Timestamp.class
            };
            public Class getColumnClass(int columnIndex) {
                return columnTypes[columnIndex];
            }
        });

        contentPane.add(table);

        //TODO: Add + Update + Delete
    }
}

*********************************************

public class QueryConfigPersonale {
    private Session session;
    private Query query;
    private List<ConfigPersonale> configPersList;

    //select * from ConfigPersonale
    @SuppressWarnings("unchecked")
    public Vector<ConfigPersonale> getConfigPersonale() {
        session = SessionFactoryUtil.getSessionFactory().getCurrentSession();
        session.beginTransaction();
        query = session.createQuery("from ConfigPersonale");

        configPersList = query.list();
        session.getTransaction().commit();

        return new Vector<ConfigPersonale>(configPersList);
    }
}

*********************************************

Please could you help ?

Thanks and best regards,
Luiss