private void setupWindow() {
initRoles(Collections.<String>emptySet(), Collections.<String>emptySet());
VerticalPanel panel = new VerticalPanel();
panel.setStyleName("window-content");
panel.add(new RolesHelpPanel().asWidget());
panel.add(new ContentHeaderLabel("Select Role"));
panel.add(new ContentDescription("Select the role you want to act on their behalf."));
final Form<Object> form = new Form<Object>(Object.class);
form.setFields(role);