Press on Button and release outside the button armed frame

Question

Press on Button using the Mouse and release outside the button armed frame does not generate MouseEvent.
Or Press on the Button outside the armed frame and release inside the armed frame does not generate MouseEvent.
Window 7
java version "1.6.0_22"
Java(TM) Platform, Standard Edition for Business (build 1.6.0_22-b04)
Java HotSpot(TM) Client VM (build 17.1-b03, mixed mode, sharing)
The question :
Is this normal behaviour for Java Swing. Does this exist in the java specification? any idea ? or is this a bug ?
the sample code below for you to test
public class PanelButtonArmedFrameClick extends JPanel
   private static final long serialVersionUID = 1L;
   private JButton btn;
   public PanelButtonArmedFrameClick()
      btn = new JButton("Click on \n the button");
      this.add(btn);
      MouseListener mouseListener = new MyMouseAdapter();
      btn.addMouseListener(mouseListener);
   private static class MyMouseAdapter extends MouseAdapter
       * {@inheritDoc}
      public void mouseClicked(MouseEvent e)
         JOptionPane.showMessageDialog(new JFrame(), "Button clicked");
   public static void main(String... args)
      SwingUtilities.invokeLater(new Runnable()
         public void run()
            JFrame frame = new JFrame("Testing");
            JPanel panel = new PanelButtonArmedFrameClick();
            frame.getContentPane().add(panel);
            frame.setPreferredSize(new Dimension(500, 500));
            frame.setMinimumSize(new Dimension(500, 500));
            frame.pack();
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.setVisible(true);
}

Answer 1

Sure this is not a bug and this is the behavior of mouseClickedEvent.
mouse clicked = mouse pressed + mouse released.
mouseClickedEvent is a combination of mousePressed and mouseReleased evenst which are generated at the same pixel location. So if you generate mousePressed and mouseReleased events at different locations you will not get mouseClicked event.
Thats why you are not getting mouse clicked event when you are performing mouse pressed event on one place and mouse released event on another place.