@Nullable
  public static String getChangelistName(@NotNull final Status status) {
    // no explicit check on working copy format supports change lists as they are supported from svn 1.5
    // and anyway status.getChangeListName() should just return null if change lists are not supported.
    return status.getNodeKind().isFile() ? status.getChangeListName() : null;
  }
@Nullable
  public static String getChangelistName(@NotNull final Status status)