KeyCode always zero

Hi all.
I'm trying to get my JTextField to transfer focus when the user hits enter. However, for some reason, I always get zero when I call keyEvent.getKeyCode(). The weird thing is, the getKeyChar() shows the correct character. Something funky is going on.
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import javax.swing.BoxLayout;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class MyCustomTextField extends JTextField {
     protected void processKeyEvent(KeyEvent e) {
          if (e.getID() == KeyEvent.KEY_TYPED) {
               System.out.println(
                    "TYPED IN PROCESSKEYEVENT: " + e.getKeyChar() + " " + e.getKeyCode());
               if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    transferFocus();
          super.processKeyEvent(e);
     public MyCustomTextField() {
          super();
          setColumns(10);
          addKeyListener(new KeyAdapter() {
               public void keyTyped(KeyEvent e) {
                    System.out.println(
                         "TYPED IN KEYADADPTER: " + e.getKeyChar() + " " + e.getKeyCode());
                    super.keyTyped(e);
     public static void main(String[] args) {
          JFrame frame = new JFrame();
          frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          frame.getContentPane().setLayout(
               new BoxLayout(frame.getContentPane(), BoxLayout.Y_AXIS));
          JPanel panel = new JPanel();
          panel.add(new MyCustomTextField());
          panel.add(new MyComboBox());
          frame.getContentPane().add(panel);
          panel = new JPanel();
          panel.add(new MyCustomTextField());
          panel.add(new MyComboBox());
          frame.getContentPane().add(panel);
          frame.pack();
          frame.show();
class MyComboBox extends JComboBox {
     MyComboBox() {
          super(new String[] { "Cool", "Not Cool" });
     public void processKeyEvent(KeyEvent e) {
          if (e.getID() == KeyEvent.KEY_TYPED) {
               System.out.println(
                    "TYPED: " + e.getKeyChar() + " " + e.getKeyCode());
               if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                    transferFocus();
          super.processKeyEvent(e);
}output-> First letter is character typed, next letter is keycode of the character.
TYPED IN PROCESSKEYEVENT: a 0
TYPED IN KEYADADPTER: a 0
TYPED IN PROCESSKEYEVENT: s 0
TYPED IN KEYADADPTER: s 0
TYPED IN PROCESSKEYEVENT: d 0
TYPED IN KEYADADPTER: d 0
TYPED IN PROCESSKEYEVENT: f 0
TYPED IN KEYADADPTER: f 0

Works OK changing
if (e.getID() == KeyEvent.KEY_TYPED) {
to
if (e.getID() == KeyEvent.KEY_PRESSED) {
and
public void keyTyped(KeyEvent e) {
to
public void keyPressed(KeyEvent e) {

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