Why AbstractAction sometimes work sometimes doesn't work ?

Question

In my program I need to use the Esc key, so I did the following to implement it, sometimes when I started the program and press the Esc key, it works as I intended, but other times after the program starts and I pressed the Esc key, no response, but if I minimize the window and restore it, and then I press the Esc key, it would work fine. Has anyone encountered similar problem ?
    Action Escape_Action=new AbstractAction("Escape Action")                             // Create an action object
      public static final long serialVersionUID=26362862L;
      // This is an instance initializer; it is executed just after the constructor of the superclass is invoked
        // The following values are completely optional
        // Set tool tip text
        putValue(Action.SHORT_DESCRIPTION,"Tool Tip Text");
        // This text is not directly used by any Swing component; however, this text could be used in a help system
        putValue(Action.LONG_DESCRIPTION,"Context-Sensitive Help Text");
        // Set an icon
        Icon icon = new ImageIcon("icon.gif");
        putValue(Action.SMALL_ICON, icon);
        // Set a mnemonic character. In most look and feels, this causes the specified character to be underlined. This indicates that if the
        // component using this action has the focus and In some look and feels, this causes the specified character in the label to be underlined
        putValue(Action.MNEMONIC_KEY,new Integer(java.awt.event.KeyEvent.VK_A));
        // Set an accelerator key; this value is used by menu items
        putValue(Action.ACCELERATOR_KEY,KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE,0));
      public void actionPerformed(ActionEvent evt)                                       //  This method is called when the action is invoked
    // Register keystroke
    this.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE,0),Escape_Action.getValue(Action.NAME));
    // Register action
    this.getActionMap().put(Escape_Action.getValue(Action.NAME),Escape_Action);
    Frank

Answer 1

You need to create a "Short, Self Contained, Compilable
and Executable, Example Program (SSCCE)",
see http://homepage1.nifty.com/algafield/sscce.html,
that demonstrates the incorrect behaviour, because I can't
guess exactly what you are doing based on the information provided.