Bug 61313 Platform native icons not used in dialogs
N20040506 For example the 'info' icon for operations in progress, the 'error' icon when an exception occurs, and the 'question' icon when asked to confirm a resource deletion. These used to use the native icons on Windows XP but now they look quite different and non-native. This is a fairly recent regression.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/MessageDialog.java
* @return The default button index.
	 */
	protected int getDefaultButtonIndex() {
		return defaultButtonIndex;
	}
	/**
	 * A mutator for the array of buttons in the button bar.
	 * 
	 * @param buttons
	 *            The buttons in the button bar; must not be <code>null</code>.
	 */
	protected void setButtons(Button[] buttons) {
		if (buttons == null) {
			throw new NullPointerException(
					"The array of buttons cannot be null.");} 
		this.buttons = buttons;
	}
	/**
	 * A mutator for the button labels.
	 * 
	 * @param buttonLabels
	 *            The button labels to use; must not be <code>null</code>.
	 */
	protected void setButtonLabels(String[] buttonLabels) {
		if (buttonLabels == null) {
			throw new NullPointerException(
					"The array of button labels cannot be null.");} 
		this.buttonLabels = buttonLabels;
	}
}