code: private static DateTimeFormatter getSafeDateTimeFormatter(final String pattern) {
  		DateTimeFormatter safeFormatter = getDateTimeFormatter(pattern);
  
  		if (Locale.UK.equals(safeFormatter.getLocale())) {
  			return safeFormatter.withLocale(Locale.ENGLISH);
  		}
  
  		return safeFormatter;
  	}
docs: work around https://bugs.openjdk.java.net/browse/JDK-8139107