@Override
  public @Nullable String getDisplayName(@Nullable DataNode node) {
    if (node == null) return null;
    for (ExternalSystemViewContributor contributor : myViewContributors) {
      String name = contributor.getDisplayName(node);
      if (name != null) {
        return name;
      }
    }
    return null;
  }
@Override
  public @Nullable String getDisplayName(@Nullable DataNode node)