I'm having the following problem while configuring a JTable row
height.
The fact is when my row height does not have the exactly heigth of
"row header", exactly figure bellow:

http://www.crionics.com/products/opensource/faq/swing_ex/images/table...

The line height seems almost the same but this little difference
increases as the # of rows increase or the look and feel is changed.

My code is very similar like this:

/* (swing1.1beta3) */

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.table.*;

/**
* @version 1.0 11/09/98
*/

class RowHeaderRenderer extends JLabel implements ListCellRenderer {

 RowHeaderRenderer(JTable table) {
   JTableHeader header = table.getTableHeader();
   setOpaque(true);
   setBorder(UIManager.getBorder("TableHeader.cellBorder"));
   setHorizontalAlignment(CENTER);
   setForeground(header.getForeground());
   setBackground(header.getBackground());
   setFont(header.getFont());
 }

 public Component getListCellRendererComponent( JList list,
        Object value, int index, boolean isSelected, boolean
cellHasFocus) {
   setText((value == null) ? "" : value.toString());
   return this;
 }

}

public class RowHeaderExample extends JFrame {

 public RowHeaderExample() {
   super( "Row Header Example" );
   setSize( 300, 150 );

   ListModel lm = new AbstractListModel() {
     String headers[] = {"a", "b", "c", "d", "e", "f", "g", "h",
"i"};
     public int getSize() { return headers.length; }
     public Object getElementAt(int index) {
       return headers[index];
     }
   };

   DefaultTableModel dm = new DefaultTableModel(lm.getSize(),10);
   JTable table = new JTable( dm );
   table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

   JList rowHeader = new JList(lm);
   rowHeader.setFixedCellWidth(50);

   rowHeader.setFixedCellHeight(table.getRowHeight()
                              + table.getRowMargin());
//                             + table.getIntercellSpacing().height);
   rowHeader.setCellRenderer(new RowHeaderRenderer(table));

   JScrollPane scroll = new JScrollPane( table );
   scroll.setRowHeaderView(rowHeader);
   getContentPane().add(scroll, BorderLayout.CENTER);
 }

 public static void main(String[] args) {
   RowHeaderExample frame = new RowHeaderExample();
   frame.addWindowListener( new WindowAdapter() {
     public void windowClosing( WindowEvent e ) {
       System.exit(0);
     }
   });
   frame.setVisible(true);
 }