@Nullable
    @Override
    public Object getData(@NotNull String dataId) {
      if (PlatformCoreDataKeys.SELECTED_ITEMS.is(dataId)) {
        return ContainerUtil.map2Array(myItems, ServiceViewItem::getValue);
      }
      if (PlatformCoreDataKeys.SELECTED_ITEM.is(dataId)) {
        ServiceViewItem item = ContainerUtil.getOnlyItem(myItems);
        return item != null ? item.getValue() : null;
      }
      return null;
    }
@Nullable
    @Override
    public Object getData(@NotNull String dataId)