@NotNull
  public SdkListItem showInvalidSdkItem(@NotNull String name) {
    InvalidSdkItem invalidItem = new InvalidSdkItem(name);
    if (Objects.equals(myInvalidItem, invalidItem)) return myInvalidItem;
    myInvalidItem = invalidItem;
    syncModel();
    return myInvalidItem;
  }
@NotNull
  public SdkListItem showInvalidSdkItem(@NotNull String name)