@NotNull
  private static List<JComponent> createNotifications(@Nullable DiffViewer viewer,
                                                      @NotNull List<? extends DiffNotificationProvider> providers) {
    List<JComponent> notifications = ContainerUtil.mapNotNull(providers, it -> it.createNotification(viewer));
    return wrapEditorNotificationBorders(notifications);
  }
@NotNull
  private static List<JComponent> createNotifications(@Nullable DiffViewer viewer,
                                                      @NotNull List<? extends DiffNotificationProvider> providers)