Bug 140576 [JFace] dialog has no icon or clipped error icon
1) for a Java Project select 'Configure Build Path' in context menu and goto tab 'Libraries' 2) edit Access Rules for a library (e.g. JRE System...) 3) see that the dialog and its children have no window icon
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/StatusDialog.java
* @param parent 
	 * 			the parent Shell of the dialog
	 */
	public StatusDialog(Shell parent) {
		super(parent);
		fLastStatus = new Status(IStatus.OK,Policy.JFACE,IStatus.OK,Util.ZERO_LENGTH_STRING,null);
	}
	/**
	 * Specifies whether status line appears to the left of the buttons
	 * (default) or above them.
	 * 
	 * @param aboveButtons
	 *            if <code>true</code> status line is placed above buttons; if
	 *            <code>false</code> to the right
	 */
	public void setStatusLineAboveButtons(boolean aboveButtons) {
		fStatusLineAboveButtons = aboveButtons;
	}
	/**
	 * Update the dialog's status line to reflect the given status. It is safe
	 * to call this method before the dialog has been opened.
	 */
	protected void updateStatus(IStatus status) {
		fLastStatus = status;
		if (fStatusLine != null && !fStatusLine.isDisposed()) {
			updateButtonsEnableState(status);
			fStatusLine.setErrorStatus(status);
		}
	}
	/**