static private String decodePercent(final String str) throws UnsupportedEncodingException {
  return URLDecoder.decode(str,UTF8);
}

static private String decodePercent ( final String str ) throws UnsupportedEncodingException { return URLDecoder . decode ( str , UTF8 ) ; }
decodes the percent encoding scheme . < br / > for example : " an + example % 20string " - > " an example string "
