LegacyConverters { public static Timestamp toTimestamp( ZonedDateTime dateTime ) { return toTimestamp( dateTime.toInstant() ); }  static ZonedDateTime toZonedDateTime( Date date ); static ZonedDateTime toZonedDateTime( Date date, ZoneId zoneId ); static LocalDateTime toLocalDateTime( Date date ); static LocalDate toLocalDate( Date date ); static LocalTime toLocalTime( Date date ); static YearMonth toYearMonth( Date date ); static MonthDay toMonthDay( Date date ); static Date toDate( ZonedDateTime dateTime ); static Date toDate( Instant instant ); static Timestamp toTimestamp( ZonedDateTime dateTime ); static Timestamp toTimestamp( Instant instant );  }
@Test public void instantToTimestampTest() { long epochMillis = 31415926535L; Instant instant = Instant.ofEpochMilli( epochMillis ); Timestamp timestamp = toTimestamp( instant ); assertEquals( timestamp.getTime(), instant.toEpochMilli() ); }