Getting a Runtime Exception while inserting value in MSAccess 2000

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Java

I am using below mentioned code to insert values in MSAccess 2000 which having table structure as mentioned below:-

Field Name Data Type
TodaysDate Date/Time
Cart ID Number
Client Name Text
Team & Segment Text
Duration Number
Tape ID Text
Start Date Date/Time
End Date Date/Time

private boolean enterDataIntoMSAccessDatabaseusingPreparedStatement()
    {
        try {

            ps = connection.prepareStatement("INSERT INTO [Cart ID Details] VALUES (?,?,?,?,?,?,?,?)");

            System.out.println("After Query");

        }

        catch (SQLException se) {

            generateErrorMessage("Error in Prepared Statement \n " + se.getMessage() );

            return false;

        }

        catch (Exception e)
        {
            generateErrorMessage("Unexpected Error Occured \n " + e.getMessage());
        }

        String todaysDate = cartIDApplicationAddCartIDDatejTextField.getText().trim();

        String cartID = cartIDApplicationAddCartIDCartIDjTextField.getText().trim();

        String clientName = cartIDApplicationAddCartIDClientNamejTextField.getText().trim();

        String teamSegment = cartIDApplicationAddCartIDTeamAndSegmentjTextField.getText().trim();

        String duration = cartIDApplicationAddCartIDDurationjTextField.getText().trim();

        String tapeID = cartIDApplicationAddCartIDTapeIDjTextField.getText().trim();

        String startDate = cartIDApplicationAddCartIDStartDatejTextField.getText().trim();

        String endDate = cartIDApplicationAddCartIDEndDatejTextField.getText().trim();

        try {

            //System.out.println("Before ps.setString()");

            ps.setString(1, todaysDate);
            ps.setString(2, cartID );
            ps.setString(3, clientName);
            ps.setString(4, teamSegment);
            ps.setString(5, duration);
            ps.setString(6, tapeID);
            ps.setString(7, startDate);
            ps.setString(8, endDate);


            //System.out.println("After ps.setString()");

                ps.executeUpdate();


       }
        catch (SQLException se) {

            generateErrorMessage("Error while inserting data in database \n " + se.getMessage());

            return false;
        }

        catch (Exception e)
        {
            generateErrorMessage("Unexpected Error Occured \n" + e.getMessage() );
        }

        return true;
    }

The above boolean function is called in "Save Button" action event, but when I click Save I am getting as Runtime Exception.

Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: JOptionPane: parentComponent does not have a valid parent
at javax.swing.JOptionPane.createInternalFrame(JOptionPane.java:1511)
at javax.swing.JOptionPane.showInternalOptionDialog(JOptionPane.java:1286)
at javax.swing.JOptionPane.showInternalMessageDialog(JOptionPane.java:1100)
at javax.swing.JOptionPane.showInternalMessageDialog(JOptionPane.java:1074)
at cartidapplication.CartID.generateErrorMessage(CartID.java:141)
at cartidapplication.CartID.enterDataIntoMSAccessDatabaseusingPreparedStatement(CartID.java:1141)
at cartidapplication.CartID.cartIDApplicationAddCartIDSavejButtonActionPerformed(CartID.java:1235)
at cartidapplication.CartID.access$1100(CartID.java:27)
at cartidapplication.CartID$12.actionPerformed(CartID.java:431)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)

Kindly help me to sort out this issue.