docs: public Object getIdentifierValue(Identifier id,
                                     boolean ignoreType)
                               throws BadMessageFormatMatchingException {
  
      throw new BadMessageFormatMatchingException(nls.getFormattedMessage("NOT_API_MESSAGE_CWSIF0101"
                                                                         ,new Object[] { getSystemMessageId() }
                                                                         ,"Message selectors are not supported for message " + getSystemMessageId()
                                                                         ));
    }