PngImageParser#getBufferedImage() doesn't respect ImageParser specification

/**
   ...
     * @param params     Optional instructions for special-handling or
     *                   interpretation of the input data (null objects are permitted and
     *                   must be supported by implementations).
      ...
     **/

if (params.containsKey(PARAM_KEY_VERBOSE)) {
            params.remove(PARAM_KEY_VERBOSE);
        }

if (params!=null && params.containsKey(PARAM_KEY_VERBOSE)) {
            params.remove(PARAM_KEY_VERBOSE);
        }