How to use

checkFile

method

in

org.nutz.lang.Files

/**
 * @see #ls(File, String, LsMode)
 */
public static File[] ls(String path, String regex, LsMode mode) {
  return ls(checkFile(path), regex, mode);
}

return ImageIO.read(Files.checkFile(img.toString()));

/**
 * @see #ls(File, String, LsMode)
 */
public static File[] ls(String path, String regex, LsMode mode) {
  return ls(checkFile(path), regex, mode);
}

return ImageIO.read(Files.checkFile(img.toString()));