public static @Nullable @Nls String getUpdatesTooltip() {
    Collection<IdeaPluginDescriptor> updates = getUpdates();
    if (ContainerUtil.isEmpty(updates)) {
      return null;
    }
    return IdeBundle.message("updates.plugin.ready.tooltip", StringUtil.join(updates, plugin -> plugin.getName(), ", "), updates.size());
  }
public static @Nullable @Nls String getUpdatesTooltip()