New to Java

hello.
i have a problem trying to get JCheckBox to work with JTextArea. what i expected to happen when i would click on a check box is that data from a table in a MS Access database would be displayed in the text area.
the program below compiles OK. when i run it a frame appears with check boxes, a text area and a button inside it. the text area is smaller than it should be. but when i press one of the check boxes, the following SQLExceptions appear in the jGRASP console. how can i get rid of these strange errors?

----jGRASP exec: java ViewProductDetails

java.sql.SQLException: Invalid handle
at sun.jdbc.odbc.JdbcOdbc.standardError(Unknown Source)
at sun.jdbc.odbc.JdbcOdbc.SQLExecDirect(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcStatement.execute(Unknown Source)
at sun.jdbc.odbc.JdbcOdbcStatement.executeQuery(Unknown Source)
at ViewProductDetails$1.actionPerformed(ViewProductDetails.java:79)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.JToggleButton$ToggleButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

----jGRASP: process aborted by user.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
 
public class ViewProductDetails extends JFrame{
   JPanel pnlBox, pnlBody, pnlFooter;  
   JCheckBox name;
   JCheckBox ageCategory;
   JCheckBox type;
   JCheckBox year;
   JButton returnToProductMenu;
   JTextArea jta;
   Container contentpane;
   Connection db;
   Statement statement;
	
   public ViewProductDetails(){
      super("View Product Details");
      contentpane = getContentPane();
      contentpane.setLayout(new BorderLayout());
      pnlBox = new JPanel();
      pnlBody = new JPanel();
      pnlFooter = new JPanel();
      jta = new JTextArea();
      jta.setFont(new Font("Serif", Font.PLAIN, 12));
      jta.setLineWrap(true);
      jta.setWrapStyleWord(true);
      jta.setEditable(false);
      name = new JCheckBox("Name");
      ageCategory = new JCheckBox("Age Category");
      type = new JCheckBox("Type");
      year = new JCheckBox("Year");
      pnlBox.add(name);
      pnlBox.add(ageCategory);
      pnlBox.add(type);
      pnlBox.add(year);
      JScrollPane jsp = new JScrollPane(jta);
      pnlBody.add(jsp, BorderLayout.CENTER);
      returnToProductMenu = new JButton("Return To Product Menu");
      pnlFooter.add(returnToProductMenu);
      contentpane.add(pnlBox,BorderLayout.NORTH);
      contentpane.add(pnlBody,BorderLayout.CENTER);
      contentpane.add(pnlFooter,BorderLayout.SOUTH);
      pack();
      setLocationRelativeTo(null);
      setVisible(true);
		
      try{
         Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
      }
      catch(Exception e){
         System.out.println("Problem loading the driver");
      }
		
      String url = "jdbc:odbc:VideoLibrary";
		
      try{
         db = DriverManager.getConnection(url,"","");
         statement = db.createStatement();
         DatabaseMetaData dbmd = db.getMetaData();
         ResultSet rs = dbmd.getTables(null, null, null, new String[]{"TABLE"});
      }
      catch(Exception e){
         System.out.println("Could not initialise the database");
         e.printStackTrace();
      }
		
      name.addActionListener(new ActionListener(){
         public void actionPerformed(ActionEvent e){
            try{
               ResultSet rs1 = statement.executeQuery("SELECT * FROM Product ORDER BY name");
               ResultSetMetaData rsmd1 = rs1.getMetaData();
      
               for(int i = 1; i <= rsmd1.getColumnCount(); i++){
                  jta.append(rsmd1.getColumnName(i) + "    ");
               }
               jta.append("\n");
 
               while(rs1.next()){
                  for(int i = 1; i <= rsmd1.getColumnCount(); i++){
                     jta.append(rs1.getObject(i) + "     ");
                  }
                  jta.append("\n");
               }
            }
            catch(SQLException ea){
               ea.printStackTrace();
            }
         }
      });
		
      ageCategory.addActionListener(new ActionListener(){
         public void actionPerformed(ActionEvent e){
            try{
               ResultSet rs2 = statement.executeQuery("SELECT * FROM Product ORDER BY ageCategory");
               ResultSetMetaData rsmd2 = rs2.getMetaData();
      
               for(int i = 1; i <= rsmd2.getColumnCount(); i++){
                  jta.append(rsmd2.getColumnName(i) + "    ");
               }
               jta.append("\n");
 
               while(rs2.next()){
                  for(int i = 1; i <= rsmd2.getColumnCount(); i++){
                     jta.append(rs2.getObject(i) + "     ");
                  }
                  jta.append("\n");
               }
            }
            catch(SQLException eb){
               eb.printStackTrace();
            }
         }
      });
		
      type.addActionListener(new ActionListener(){
         public void actionPerformed(ActionEvent e){
            try{
               ResultSet rs3 = statement.executeQuery("SELECT * FROM Product ORDER BY type");
               ResultSetMetaData rsmd3 = rs3.getMetaData();
      
               for(int i = 1; i <= rsmd3.getColumnCount(); i++){
                  jta.append(rsmd3.getColumnName(i) + "    ");
               }
               jta.append("\n");
 
               while(rs3.next()){
                  for(int i = 1; i <= rsmd3.getColumnCount(); i++){
                     jta.append(rs3.getObject(i) + "     ");
                  }
                  jta.append("\n");
               }
            }
            catch(SQLException ec){
               ec.printStackTrace();
            }
         }
      });
		
      year.addActionListener(new ActionListener(){
         public void actionPerformed(ActionEvent e){
                try{
                    ResultSet rs4 = statement.executeQuery("SELECT * FROM Product ORDER BY year");
                    ResultSetMetaData rsmd4 = rs4.getMetaData();
      
                    for(int i = 1; i <= rsmd4.getColumnCount(); i++){
                       jta.append(rsmd4.getColumnName(i) + "    ");
               }
               jta.append("\n");
 
               while(rs4.next()){
                  for(int i = 1; i <= rsmd4.getColumnCount(); i++){
                     jta.append(rs4.getObject(i) + "     ");
                  }
                  jta.append("\n");
               }
            }
            catch(SQLException ed){
               ed.printStackTrace();
            }
         }
      });
		
      returnToProductMenu.addActionListener(new ActionListener(){
         public void actionPerformed(ActionEvent e){
               setVisible(false);
         }
      });
		
      try{
         if(statement != null){
            statement.close();
         }
         if(db != null){
            db.close();
         }   
      }
      catch(Exception e){
         System.out.println("Could not close the current connection");
         e.printStackTrace();   
      }
   }
	  
   public static void main(String[] args){
      new ViewProductDetails();
   }
}