Convert LocalDateTime to Date and back

taijidude - Sep 18 - - Dev Community

At the moment i have to write a lot of Integeration Tests for a migration project. The old code uses java.util.Date a lot, but the project runs in Java 17. So i wanted to use the newer Date Classes for my tests.

I used the following two helper methods to convert Date to LocalDateTime and back.

private LocalDateTime toLocalDateTime(Date toConvert) {
    var instant = toConvert.toInstant();
    var zonedDateTime = instant.atZone(ZoneId.systemDefault());
    return zonedDateTime.toLocalDateTime();
}

private Date toDate(LocalDateTime toConvert) {
    var zonedDateTime = toConvert.atZone(ZoneId.systemDefault());
    return Date.from(zonedDateTime.toInstant());
}
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