if (shell != null)
throw new EclipseUiException("There is already a shell");
shell = new Shell(getDisplay(), SWT.NO_TRIM | SWT.BORDER | SWT.ON_TOP);
if (shell != null)
throw new EclipseUiException("There is already a shell");
shell = new Shell(getDisplay(), SWT.NO_TRIM | SWT.BORDER | SWT.ON_TOP);