Needs double click to edit cell in JTable

Question

I know this is bad design but there's no other way that I could possibly meet the requirement which is to have dynamic components. Anyhow, the requirement is to have any kind of components(e.g. TextFields, Combobox, Regular expression fields, a panel with a number of checkboxes) in a table cell in the same column. It would have been easier to do this by using the the DefaultCellEditor, with the 'panel containing a number of checkboxes' I cannot use it.
I already have an implementation for this requirement. There was no problem with it when we used Java 1.5. But when we shifted to Java 1.6, I noticed that I need to double-click on a cell so that I can edit it. I did not notice this behavior at all with 1.5. What could have changed in 1.6?
Below, are my (trimmed-down) codes:
//TestComponent.java
public class TestComponent extends JPanel{
private int componentHeight=16;
public TestComponent(int i){
this.setPreferredSize(new Dimension(90, this.componentHeight));
setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
switch (i){
case 0: createTextField(); break;
case 1: createCheckBox(); break;
case 2: createCombo(); break;
private void createTextField(){
String text = null;
int textFieldMaxLength = 5;
JTextField oText = new JTextField(textFieldMaxLength);
// add it to this Panel:
this.add(oText);
// set the data:
text = "test";
oText.setText(text);
// set size for this TextField:
Dimension fieldSize = new Dimension(
textFieldMaxLength * 13, this.componentHeight);
          oText.setPreferredSize(fieldSize);
          oText.setMinimumSize(fieldSize);
          oText.setMaximumSize(fieldSize);     
private void createCheckBox(){
JCheckBox chkbox = new JCheckBox();
this.add(chkbox);
private void createCombo(){
JComboBox combo = new JComboBox(new String[]{"apple", "orange", "plum", "grapefruit"});
Dimension fieldSize = new Dimension(                    5 * 13, this.componentHeight);
          combo.setPreferredSize(fieldSize);
          combo.setMinimumSize(fieldSize);
          combo.setMaximumSize(fieldSize);
this.add(combo);
//ComponentCellEditor.java
public class ComponentCellEditor extends AbstractCellEditor
     implements TableCellEditor, Serializable{
protected JComponent editorComponent = null;     
public Component getComponent() {
return editorComponent;
public Object getCellEditorValue() {
return editorComponent;
public boolean isCellEditable(EventObject anEvent) {
return true;
public boolean shouldSelectCell(EventObject anEvent) {
return true;
public boolean stopCellEditing() {
fireEditingStopped();
return true;
// Implementing the TreeCellEditor Interface
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
this.editorComponent = (TestComponent)value;
return editorComponent;
//ComponentCellRenderer.java
public class ComponentCellRenderer implements TableCellRenderer
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
TestComponent oComp = (TestComponent) value;
if (isSelected) {
oComp.setForeground(table.getSelectionForeground());
oComp.setBackground(table.getSelectionBackground());
} else {
oComp.setForeground(table.getForeground());
oComp.setBackground(table.getBackground());     
return oComp;
//TestTable.java
public class TestTable
public static void main(String []args){
String columns[] = {"Text", "Value"};          
Class types[] = {String.class, TestComponent.class};
boolean editable[] = {false, true};
AsrTable table = new AsrTable(new Dimension(200, 150), columns, types, editable);
table.addRow(new Object[]{"Field1", new TestComponent(0)});
table.addRow(new Object[]{"Field2", new TestComponent(1)});
table.addRow(new Object[]{"Field3", new TestComponent(2)});
table.setDefaultEditor(TestComponent.class, new ComponentCellEditor());
table.setDefaultRenderer(TestComponent.class, new ComponentCellRenderer());
table.setShowGrid(false);
table.setRowHeight(20);
table.setRowSelectionAllowed(false);
JFrame frame = new JFrame();
frame.addWindowListener( new WindowAdapter() {
     public void windowClosing(WindowEvent e)
     Window win = e.getWindow();
     win.setVisible(false);
     win.dispose();
     System.exit(0);
JScrollPane pane = new JScrollPane(table);
frame.getContentPane().add(pane);
frame.pack();
frame.setVisible(true);
}

Answer 1

My last post doesn't have Code Formatting.
// TestComponent.java
public class TestComponent extends JPanel{
     private int componentHeight=16;
     public TestComponent(int i){
          this.setPreferredSize(new Dimension(90, this.componentHeight));
          setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
          switch (i){
               case 0: createTextField(); break;
               case 1: createCheckBox(); break;
          case 2: createCombo(); break;
     private void createTextField(){
          String text = null;
          int textFieldMaxLength = 5;
          JTextField oText = new JTextField(textFieldMaxLength);
          // add it to this Panel:
          this.add(oText);
          // set the data:
          text = "test";
          oText.setText(text);
          // set size for this TextField:
          Dimension fieldSize = new Dimension(
                    textFieldMaxLength * 13, this.componentHeight);
          oText.setPreferredSize(fieldSize);
          oText.setMinimumSize(fieldSize);
          oText.setMaximumSize(fieldSize);
     private void createCheckBox(){
          JCheckBox chkbox = new JCheckBox();
          this.add(chkbox);
     private void createCombo(){
          JComboBox combo = new JComboBox(new String[]{"apple", "orange", "plum", "grapefruit"});
          Dimension fieldSize = new Dimension( 5 * 13, this.componentHeight);
          combo.setPreferredSize(fieldSize);
          combo.setMinimumSize(fieldSize);
          combo.setMaximumSize(fieldSize);
          this.add(combo);
// ComponentCellEditor.java
public class ComponentCellEditor extends AbstractCellEditor 
     implements TableCellEditor, Serializable
     protected JComponent editorComponent = null;     
     public Component getComponent() {
          return editorComponent;
     public Object getCellEditorValue() {
          return editorComponent;     
     public boolean isCellEditable(EventObject anEvent) {
          return true;
     public boolean shouldSelectCell(EventObject anEvent) {
          return true;
     public boolean stopCellEditing() {
          fireEditingStopped();
          return true;
//  Implementing the TreeCellEditor Interface
    public Component getTableCellEditorComponent(JTable table, Object value,
          boolean isSelected, int row, int column) {
          this.editorComponent = (TestComponent)value;
          return editorComponent;
// ComponentCellRenderer.java
public class ComponentCellRenderer implements TableCellRenderer
     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row,
               int column) {
          TestComponent oComp = (TestComponent) value;
          if (isSelected) {
               oComp.setForeground(table.getSelectionForeground());
               oComp.setBackground(table.getSelectionBackground());
          } else {
               oComp.setForeground(table.getForeground());
               oComp.setBackground(table.getBackground());
          return oComp;
// TestTable.java
public class TestTable
     public static void main(String []args){
          String columns[] = {"Text", "Value"};          
          Class types[] = {String.class, TestComponent.class};
          boolean editable[] = {false, true};
          AsrTable table = new AsrTable(new Dimension(200, 150), columns, types, editable);
          table.addRow(new Object[]{"Field1", new TestComponent(0)});
          table.addRow(new Object[]{"Field2", new TestComponent(1)});
          table.addRow(new Object[]{"Field3", new TestComponent(2)});
          table.setDefaultEditor(TestComponent.class, new ComponentCellEditor());
          table.setDefaultRenderer(TestComponent.class, new ComponentCellRenderer());
          table.setShowGrid(false);
          table.setRowHeight(20);
          table.setRowSelectionAllowed(false);
          JFrame frame = new JFrame();
          frame.addWindowListener( new WindowAdapter() {
               public void windowClosing(WindowEvent e)
                    Window win = e.getWindow();
                    win.setVisible(false);
                    win.dispose();
                    System.exit(0);
          JScrollPane pane = new JScrollPane(table);
          frame.getContentPane().add(pane);
          frame.pack();
          frame.setVisible(true);
}