ItemStateChanged not always called in ComboboxEditor

Question

Hi all,
I have implemented a custom JTable Cell editor which extends AbstractCellEditor. Most of the time everything works fine but sometimes when I add new rows to the table and then attempt to make a new selection in the combobox I cannot. When I drop down the combo and select something itemStateChanged is not fired. Its only for the new row. The combobox in the other rows continues to work. HOWEVER, if I dropdown the combo, and hold the mouse button down and move it over the desired item and release the mouse button itemstateChanged IS fired and the selection is made??????? My editor includes the following method implementations.
/** Creates a new instance of oaJComboBoxTableEditor */
public oaJComboBoxTableEditor() {
_combo = new oaJComboBox();
_combo.getEditor().getEditorComponent().addKeyListener(this);
_combo.getEditor().getEditorComponent().addFocusListener(this);
_combo.addFocusListener(this);
_combo.addItemListener(this);
_combo.addPopupMenuListener(this);
public boolean startCellEditing(EventObject anEvent) {
System.out.println("startCellEditing");
_combo.addItemListener(this);
_combo.addPopupMenuListener(this);
return true;
public void focusGained(FocusEvent e) {
System.out.println("oaJComboboxTableEditor::focusGained");
_combo.addItemListener(this);
_combo.addPopupMenuListener(this);
startCellEditing(new EventObject(this));
public void focusLost(FocusEvent e) {
System.out.println("oaJComboboxTableEditor::focusLost");
stopCellEditing();
public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
System.out.println("oaJComboboxTableEditor::popupMenuWillBecomeInvisible");
// need this to let the popup close gracefully
SwingUtilities.invokeLater(new Runnable() {
public void run() {
stopCellEditing();
public boolean stopCellEditing() {
_combo.removeItemListener(this);
_combo.removePopupMenuListener(this);
fireEditingStopped();
return true;
}

Answer 1

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