Reduction of flicker on JTable (or reliability of setIgnoreRepaint)

Question

A table in one of our applications receives and logs about 10-20 events per second, and does a fairly good job at this. The problem, however, is when the table is visible the flickering is terrible. Even the header row disappears at times when the table is drawn right over it. Obviously, this is unacceptable.
Yes - all doubleBuffering is set to true. I've even written a small class which iterates through every component to ensure all doubleBuffering is set to true.
Attempts to use setIgnoreRepaint on the JFrame, JPanel, JScrollbar, and even the JTable are futile. Each component continues to repaint (and flicker).
I'm open to any suggestions, at the moment my priority is preventing the header row from occasionally disappearing when the actual table is being drawn over it.

Answer 1

Here is a simple test using only a single thread. I don't get any flicker. However, I did notice a change in CPU usage after about 10 seconds:
setIgnoreRepaint(true); // 5%
setIgnoreRepaint(false) // 1%
This is the opposite of what I would expect.
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;
public class TableThread extends JFrame
     implements ActionListener, Runnable
     JTable table;
     DefaultTableModel model;
     int count;
     public TableThread()
          String[] columnNames = {"Date", "String", "Integer", "Decimal", "Boolean"};
          Object[][] data =
               {new Date(), "A", new Integer(1), new Double(5.1), new Boolean(true)},
               {new Date(), "B", new Integer(2), new Double(6.2), new Boolean(false)},
               {new Date(), "C", new Integer(3), new Double(7.3), new Boolean(true)},
               {new Date(), "D", new Integer(4), new Double(8.4), new Boolean(false)}
          model = new DefaultTableModel(data, columnNames);
          table = new JTable( model );
          table.setPreferredScrollableViewportSize(table.getPreferredSize());
          table.setIgnoreRepaint(false);
          JScrollPane scrollPane = new JScrollPane( table );
          getContentPane().add( scrollPane );
          JButton button = new JButton( "Start Thread to Update Table" );
          button.addActionListener( this );
          getContentPane().add(button, BorderLayout.SOUTH );
     public void actionPerformed(ActionEvent e)
          new Thread( this ).start();
          table.requestFocus();
     public void run()
          Random random = new Random();
          while (true)
               final int row = random.nextInt( table.getRowCount() );
               SwingUtilities.invokeLater(new Runnable()
                    public void run()
//                         table.setValueAt( new Integer(count++), row, 2);
                         count++;
                         Object[] line =
                              new Date(),
                              "A",
                              new Integer(count),
                              new Double(5.1),
                              new Boolean(true)
                              model.addRow(line);
//                         table.changeSelection(row, 2, false, false);
               try { Thread.sleep(50); }
               catch(Exception e) {}
     public static void main(String[] args)
          TableThread frame = new TableThread();
          frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
          frame.pack();
          frame.setVisible(true);
}