F2 key not working with custom JTable Column

Question

I have a custom JTable Column (which is a JPanel with a JTextfield and JButton). Everything works as expected, except when the user presses "F2" to start editing the custom column cell. When the user presses F2, the custom cell goes into editing mode, but I am unable to type anything in it.
Below is the SSCCE.
Steps to Reproduce problem:
1) Run the Program
2) Select any cell in first Column.
3) Press "F2" and try to type into the cell. Can't type anything.
package com.ns;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.util.EventObject;
import javax.swing.DefaultCellEditor;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.WindowConstants;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
public class TextButtonCellFrame extends javax.swing.JFrame {
    // Variables declaration - do not modify                    
    private JTextField inputText;
    private JScrollPane jScrollPane1;
    private JPanel testPanel;
    private JTable testTable;
    // End of variables declaration                  
    public TextButtonCellFrame() {
        initComponents();
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                         
    private void initComponents() {
        testPanel = new JPanel();
        jScrollPane1 = new JScrollPane();
        testTable = new JTable();
        inputText = new JTextField();
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        testTable.setModel(new DefaultTableModel(
            new Object [][] {
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null}
            new String [] {
                "Title 1", "Title 2", "Title 3", "Title 4"
        testTable.setCellSelectionEnabled(true);
        testTable.setRowHeight(52);
        testTable.setSurrendersFocusOnKeystroke(true);
        testTable.getColumnModel().getColumn(0).setCellRenderer(new MyTableCellRenderer());
        testTable.getColumnModel().getColumn(0).setCellEditor(new MyTableCellEditor(new JTextField()));
        testTable.getColumnModel().getColumn(0).setPreferredWidth(200);
        jScrollPane1.setViewportView(testTable);
        testPanel.add(jScrollPane1);
        inputText.setPreferredSize(new Dimension(50, 20));
        testPanel.add(inputText);
        getContentPane().add(testPanel, BorderLayout.CENTER);
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-576)/2, (screenSize.height-417)/2, 576, 417);
    }// </editor-fold>                       
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new TextButtonCellFrame().setVisible(true);
    public class MyTableCellRenderer extends JPanel implements TableCellRenderer {
        Point point;
        JButton button1 = new JButton("Test 1");
        JTextField txtField = new JTextField();
        public MyTableCellRenderer() {
            setLayout(new BorderLayout());
            this.add(button1, BorderLayout.EAST);
            this.add(txtField,BorderLayout.CENTER);
        public Component getTableCellRendererComponent(JTable table, Object value,
                boolean isSelected, boolean hasFocus, int rowIndex, int vColIndex) {
            if (isSelected) {
                txtField.setBackground(testTable.getSelectionBackground());
                txtField.setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
            else {
                txtField.setBackground(testTable.getBackground());
                txtField.setBorder(null);
            return this;
    public class MyTableCellEditor extends DefaultCellEditor {
        JPanel panel = new JPanel();
        JButton button1 = new JButton ("Test 1");
        JTextField txtField;
        MyTableCellEditor(JTextField txtField) {
            super (txtField);
            this.txtField = txtField;
            panel.setLayout(new BorderLayout());
            panel.add(button1, BorderLayout.EAST);
            panel.add(txtField,BorderLayout.CENTER);
        public void actionPerformed(ActionEvent e) {
            if (e.getSource() == button1)
                JOptionPane.showMessageDialog(null, "Action One Successful");
        public Component getTableCellEditorComponent(JTable table, Object value,
                                    boolean isSelected, int row, int column) {
            return panel;
       public boolean isCellEditable(final EventObject anEvent) {
          if (anEvent instanceof KeyEvent) {
             final KeyEvent keyEvent = (KeyEvent) anEvent;
             SwingUtilities.invokeLater(new Runnable() {
                public void run() {
                   if (!Character.isIdentifierIgnorable(keyEvent.getKeyChar())) {
                      txtField.setText(txtField.getText() + keyEvent.getKeyChar());
                   txtField.setCaretPosition(txtField.getText().length());
                   txtField.requestFocusInWindow();
            return super.isCellEditable(anEvent);
}The code for isCellEditable(final EventObject anEvent) which is needed to edit the cell using keyboard was provided by DarrylBurke here
regards,
nirvan.

Answer 1

The F2 key when pressed generates an action event (either JTable generates it or some other component). I am not sure how to handle the action event in the isCellEditable() method. Also, F(X) range of keys other than F2 dump some junk character in the JTextfield when pressed. I am now stuck at this point and don't know how handle F(X) range of keys.
regards,
nirvan.