Icon oldIcon = activeIcon; activeIcon = icon; firePropertyChange(ICON_CHANGED_PROPERTY, oldIcon, activeIcon);
Icon oldIcon = icon; icon = newIcon; firePropertyChange(ICON_CHANGED_PROPERTY, oldIcon, newIcon);
  public void setIcon(Icon icon)  {    if (icon != activeIcon)      {	Icon oldIcon = activeIcon;	activeIcon = icon;	firePropertyChange(ICON_CHANGED_PROPERTY, oldIcon, activeIcon);      }  }