@NotNull
  public static String loadFile(@NotNull File file, @Nullable String encoding, boolean convertLineSeparators) throws IOException {
    String s = new String(loadFileText(file, encoding));
    return convertLineSeparators ? StringUtilRt.convertLineSeparators(s) : s;
  }
@NotNull
  public static String loadFile(@NotNull File file, @Nullable String encoding, boolean convertLineSeparators)