@Nullable
  @Override
  public Object getData(@NotNull Collection<? extends AbstractTreeNode<?>> selection, @NotNull String dataId) {
    if (!myProject.isDisposed() && !selection.isEmpty()) {
      for (TreeStructureProvider provider : EP.getExtensions(myProject)) {
        try {
          Object data = provider.getData(selection, dataId);
          if (data != null) return data;
        }
        catch (IndexNotReadyException | ProcessCanceledException ignore) {
        }
        catch (Exception exception) {
          LOG.warn("unexpected error in " + provider, exception);
        }
      }
    }
    return null;
  }
@Nullable
  @Override
  public Object getData(@NotNull Collection<? extends AbstractTreeNode<?>> selection, @NotNull String dataId)