Convert between LocalDate and XMLGregorianCalendar

Question

What\'s the best way to convert between LocalDate from Java 8 and XMLGregorianCalendar?

Answer 1

To convert from LocalDate to XMLGregorianCalendar you can use

LocalDate localDate = ...;
GregorianCalendar calender = new GregorianCalendar();
Date utilDate = Date.from( localDate.atStartOfDay( ZoneId.systemDefault() ).toInstant() );
calender.setTime(utilDate);     
XMLGregorianCalendar xmlCal = DatatypeFactory.newInstance().newXMLGregorianCalendar(calender);

And to convert XMLGregorianCalendar back to LocalDate:

XMLGregorianCalendar xmlCal = ...;
Date utilDate = xmlCal.toGregorianCalendar().getTime();
LocalDate localDate = LocalDateTime.ofInstant( utilDate.toInstant(), ZoneId.systemDefault() ).toLocalDate();