Keybind on short press

I am following this tutorial to get the key bindings to work in my application. So far, key bindings fire successfully when I press a key. What I expect is when I bind one action to the key pressed event and another action to the event released by the key, it fires the first action when the key is pressed and the second action when the key is released. What actually happens when I hold down a key are actions being called multiple times. What can I do to achieve the desired behavior?

This is how I implement key bindings:

component.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke("pressed UP"), "pressedUP");
component.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke("released UP"), "releasedUP");

Action pressedUpAction = new AbstractAction()
{
    public void actionPerformed(ActionEvent e)
    {
        System.out.println("Pressed UP");
    }           
};

Action releasedUpAction = new AbstractAction()
{
    public void actionPerformed(ActionEvent e)
    {
        System.out.println("Released UP");
    }           
};

component.getActionMap().put("pressedUP", pressedUpAction);
component.getActionMap().put("releasedUP", releasedUpAction);

      

        
        
        
      

    

When I run the program, the output I actually get when I hold the up key is Pressed UP

, a little pause and then a few values Pressed UP

. When I release the key up, I receive a message Released UP

. The whole output looks like this:

Pressed UP
Pressed UP
Pressed UP
Pressed UP
Pressed UP
Pressed UP
Pressed UP
Released UP

      

        
        
        
      

    

It's really strange if I replace UP with a key with a keyboard letter, for example P

, everything works as I expect.