public String decode(String pString) throws DecoderException {
  if (pString == null) {
    return null;
  }
  try {
    return decode(pString,getDefaultCharset());
  }
 catch (  UnsupportedEncodingException e) {
    throw new DecoderException(e.getMessage());
  }
}

public String decode ( String pString ) throws DecoderException { if ( pString == null ) { return null ; } try { return decode ( pString , getDefaultCharset ( ) ) ; } catch ( UnsupportedEncodingException e ) { throw new DecoderException ( e . getMessage ( ) ) ; } }
decodes a url safe string into its original form using the default string charset . escaped characters are converted back to their original representation .
