create standard icon

From: Greg (gd_at_logium.pl)
Date: 10/31/03 

Date: Fri, 31 Oct 2003 15:49:56 +0100

Hi

How can I create standard icon - the same which is in the dialog below?

JOptionPane.showMessageDialog(frame,
    "Eggs aren't supposed to be green.",
    "Inane warning",
    JOptionPane.INFORMATION_MESSAGE);

Icon standardIcon = new Icon("what?!") or maybe is another way?

Thanks in advance
Best Regards 

-- 
Greg