code: protected String getI18n(final String aMessageKey, final Exception aException) {
          return StringUtils.normalizeWS(myBundle.get(aMessageKey, aException.getMessage()));
      }
docs: Gets the internationalized value for the supplied message key, using an exception as additional information.
  
  @param aMessageKey A message key
  @param aException Additional details for the message
  @return The internationalized message