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
public void create() {
		super.create();
		if (fLastStatus != null) {
			
			if (fLastStatus.matches(IStatus.ERROR)) {
				
				fLastStatus = new Status(IStatus.ERROR,
						fLastStatus.getPlugin(), fLastStatus.getCode(),
						"", fLastStatus.getException()); 
			}
			updateStatus(fLastStatus);
		}
	}
	/*
	 * @see Dialog#createButtonsForButtonBar(Composite)
	 */
	protected void createButtonsForButtonBar(Composite parent) {
		fOkButton = createButton(parent, IDialogConstants.OK_ID,
				IDialogConstants.OK_LABEL, true);
		createButton(parent, IDialogConstants.CANCEL_ID,
				IDialogConstants.CANCEL_LABEL, false);
	}
	/*
	 * @see Dialog#createButtonBar(Composite)
	 */
	protected Control createButtonBar(Composite parent) {
		Composite composite = new Composite(parent, SWT.NULL);
		GridLayout layout = new GridLayout();
		if (fStatusLineAboveButtons) {
			layout.numColumns = 1;