LegacyConverters { public static YearMonth toYearMonth( Date date ) { Calendar c = Calendar.getInstance(); c.setTime( date ); int year = c.get( Calendar.YEAR ); int month = c.get( Calendar.MONTH ) + 1; return YearMonth.of( year, month ); }  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 dateToYearMonthTest() { long epochMillis = 31415926535L; Date date = new Date( epochMillis ); Calendar c = Calendar.getInstance(); c.setTime( date ); int year = c.get( Calendar.YEAR ); int month = c.get( Calendar.MONTH ) + 1; YearMonth yearMonth = toYearMonth( date ); assertEquals( yearMonth.getYear(), year ); assertEquals( yearMonth.getMonthValue(), month ); }