我有以下應用程序代碼。應用代碼public static long advanceByMax1HourWithoutOverflow(long currentTimeMillis) {    ZoneId zoneId = ZoneId.systemDefault();    ZonedDateTime zonedDateTime = Instant.ofEpochMilli(currentTimeMillis).atZone(zoneId);    // 0-23    int hour = zonedDateTime.getHour();    if (hour < 23) {        zonedDateTime = zonedDateTime.plusHours(1);        return zonedDateTime.toInstant().toEpochMilli();    }    // 0-59    int minute = zonedDateTime.getMinute();    if (minute < 59) {        zonedDateTime = zonedDateTime.plusMinutes(1);        return zonedDateTime.toInstant().toEpochMilli();    }    return currentTimeMillis;}我用以下內容為它編寫了一個單元測試。單元測試代碼@Testpublic void advanceByMax1HourWithoutOverflow() {    /*    27 October 2018    1540648800000 -> 1540652400000    22:00 -> 23:00    */    long currentTimeMillis = 1540648800000L;    long expected = 1540652400000L;    long output = Utils.advanceByMax1HourWithoutOverflow(currentTimeMillis);    assertEquals(expected, output);我收到以下錯誤org.threeten.bp.zone.ZoneRulesException: No time-zone data files registered我試圖通過使用來修復它單元測試代碼@Testpublic void advanceByMax1HourWithoutOverflow() {    Context context = mock(Context.class);    AndroidThreeTen.init(context);    /*    27 October 2018    1540648800000 -> 1540652400000    22:00 -> 23:00    */    long currentTimeMillis = 1540648800000L;    long expected = 1540652400000L;    long output = Utils.advanceByMax1HourWithoutOverflow(currentTimeMillis);    assertEquals(expected, output);我越來越java.lang.ExceptionInInitializerError    at org.threeten.bp.ZoneRegion.ofId(ZoneRegion.java:143)    at org.threeten.bp.ZoneId.of(ZoneId.java:358)    at org.threeten.bp.ZoneId.of(ZoneId.java:286)    at org.threeten.bp.ZoneId.systemDefault(ZoneId.java:245)有什么方法可以通過單元測試，而無需更改當前應用程序的方法簽名？我只想保留我當前的應用程序方法簽名而不做任何修改。long advanceByMax1HourWithoutOverflow(long currentTimeMillis)