Java Code Examples for java.time.Instant#getNano()

@LiteralParameters("p")
@SqlType("timestamp(p) with time zone")
public static long shortTimestamp(
        @LiteralParameter("p") long precision,
        ConnectorSession session,
        @SqlNullable @SqlType("timestamp(p) with time zone") Long dummy) // need a dummy value since the type inferencer can't bind type arguments exclusively from return type
{
    Instant start = session.getStart();

    long epochMillis = start.toEpochMilli();

    if (precision < MAX_SHORT_PRECISION) {
        epochMillis = round(epochMillis, (int) (MAX_SHORT_PRECISION - precision));
    }
    else {
        long nanosOfMilli = start.getNano() % NANOSECONDS_PER_MILLISECOND;
        if (roundToNearest(nanosOfMilli, NANOSECONDS_PER_MILLISECOND) == NANOSECONDS_PER_MILLISECOND) {
            epochMillis++;
        }
    }

    return packDateTimeWithZone(epochMillis, session.getTimeZoneKey());
}
 

/** {@inheritDoc} */
@Override
public synchronized void config(final Instant i1, final Instant i2, final double y1, final double y2)
{
    final double x1 = i1.getEpochSecond() + 1e-9*i1.getNano();
    final double x2 = i2.getEpochSecond() + 1e-9*i2.getNano();
    final double d = x2 - x1;
    if (d != 0.0)
    {
        a = (y2 - y1) / d;
        b = (x2*y1 - x1*y2) / d;
        if (a != 0.0)
            return;
    }
    a = 1.0;
    b = 0.0;
}
 

@VisibleForTesting
String currentTimestamp() {
    final long currentTimeNanos = nanoTimeSupplier.getAsLong();

    if (nextUpdateNanos - currentTimeNanos > 0) {
        return timestamp;
    }

    final Instant now = instantSupplier.get();

    // The next time we need to update our formatted timestamp is the next time System.nanoTime()
    // equals the following second. We can determine this by adding one second to our current
    // nanoTime minus the nanos part of the current system time (i.e., the number of nanos since the
    // last second).
    nextUpdateNanos = currentTimeNanos - now.getNano() + NANOS_IN_SECOND;

    return timestamp = DateTimeFormatter.RFC_1123_DATE_TIME.format(
            ZonedDateTime.ofInstant(now, ZoneOffset.UTC));
}
 

void writeLogs(OutputStream out, Instant from, Instant to) {
    double fromSeconds = from.getEpochSecond() + from.getNano() / 1e9;
    double toSeconds = to.getEpochSecond() + to.getNano() / 1e9;
    BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(out));
    try {
        for (List<Path> logs : getMatchingFiles(from, to)) {
            List<LogLineIterator> logLineIterators = new ArrayList<>();
            try {
                // Logs in each sub-list contain entries covering the same time interval, so do a merge sort while reading
                for (Path log : logs)
                    logLineIterators.add(new LogLineIterator(log, fromSeconds, toSeconds));

                Iterator<LineWithTimestamp> lines = Iterators.mergeSorted(logLineIterators,
                                                                          Comparator.comparingDouble(LineWithTimestamp::timestamp));
                while (lines.hasNext()) {
                    writer.write(lines.next().line());
                    writer.newLine();
                }
            }
            catch (IOException e) {
                throw new UncheckedIOException(e);
            }
            finally {
                for (LogLineIterator ll : logLineIterators) {
                    try { ll.close(); } catch (IOException ignored) { }
                }
            }
        }
    }
    finally {
        Exceptions.uncheck(writer::flush);
    }
}
 

@Override
public JsonElement serialize(Instant dt, Type type, JsonSerializationContext jsonSerializationContext) {
    var seconds = dt.getEpochSecond();
    var nanos = dt.getNano();
    JsonObject obj = new JsonObject();
    obj.add("seconds", new JsonPrimitive(seconds));
    obj.add("nanos", new JsonPrimitive(nanos));
    return obj;
}
 

public static void main(String[] args) throws Throwable {
    int N = 10000;
    long t1970 = new java.util.Date(70, 0, 01).getTime();
    Random r = new Random();
    for (int i = 0; i < N; i++) {
        int days  = r.nextInt(50) * 365 + r.nextInt(365);
        long secs = t1970 + days * 86400 + r.nextInt(86400);
        int nanos = r.nextInt(NANOS_PER_SECOND);
        int nanos_ms = nanos / 1000000 * 1000000; // millis precision
        long millis = secs * 1000 + r.nextInt(1000);

        LocalDateTime ldt = LocalDateTime.ofEpochSecond(secs, nanos, ZoneOffset.UTC);
        LocalDateTime ldt_ms = LocalDateTime.ofEpochSecond(secs, nanos_ms, ZoneOffset.UTC);
        Instant inst = Instant.ofEpochSecond(secs, nanos);
        Instant inst_ms = Instant.ofEpochSecond(secs, nanos_ms);
        //System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);

        /////////// Timestamp ////////////////////////////////
        Timestamp ta = new Timestamp(millis);
        ta.setNanos(nanos);
        if (!isEqual(ta.toLocalDateTime(), ta)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ta.toLocalDateTime(), ta);
            throw new RuntimeException("FAILED: j.s.ts -> ldt");
        }
        if (!isEqual(ldt, Timestamp.valueOf(ldt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ldt, Timestamp.valueOf(ldt));
            throw new RuntimeException("FAILED: ldt -> j.s.ts");
        }
        Instant inst0 = ta.toInstant();
        if (ta.getTime() != inst0.toEpochMilli() ||
            ta.getNanos() != inst0.getNano() ||
            !ta.equals(Timestamp.from(inst0))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: j.s.ts -> instant -> j.s.ts");
        }
        inst = Instant.ofEpochSecond(secs, nanos);
        Timestamp ta0 = Timestamp.from(inst);
        if (ta0.getTime() != inst.toEpochMilli() ||
            ta0.getNanos() != inst.getNano() ||
            !inst.equals(ta0.toInstant())) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: instant -> timestamp -> instant");
        }

        ////////// java.sql.Date /////////////////////////////
        // j.s.d/t uses j.u.d.equals() !!!!!!!!
        java.sql.Date jsd = new java.sql.Date(millis);
        if (!isEqual(jsd.toLocalDate(), jsd)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jsd.toLocalDate(), jsd);
            throw new RuntimeException("FAILED: j.s.d -> ld");
        }
        LocalDate ld = ldt.toLocalDate();
        if (!isEqual(ld, java.sql.Date.valueOf(ld))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ld, java.sql.Date.valueOf(ld));
            throw new RuntimeException("FAILED: ld -> j.s.d");
        }
        ////////// java.sql.Time /////////////////////////////
        java.sql.Time jst = new java.sql.Time(millis);
        if (!isEqual(jst.toLocalTime(), jst)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jst.toLocalTime(), jst);
            throw new RuntimeException("FAILED: j.s.t -> lt");
        }
        // millis precision
        LocalTime lt = ldt_ms.toLocalTime();
        if (!isEqual(lt, java.sql.Time.valueOf(lt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(lt, java.sql.Time.valueOf(lt));
            throw new RuntimeException("FAILED: lt -> j.s.t");
        }
    }
    System.out.println("Passed!");
}
 

/**
 * Gets the previous transition before the specified instant.
 * <p>
 * This returns details of the previous transition before the specified instant.
 * For example, if the instant represents a point where "summer" daylight saving time
 * applies, then the method will return the transition from the previous "winter" time.
 *
 * @param instant  the instant to get the previous transition after, not null, but null
 *  may be ignored if the rules have a single offset for all instants
 * @return the previous transition before the specified instant, null if this is before the first transition
 */
public ZoneOffsetTransition previousTransition(Instant instant) {
    if (savingsInstantTransitions.length == 0) {
        return null;
    }
    long epochSec = instant.getEpochSecond();
    if (instant.getNano() > 0 && epochSec < Long.MAX_VALUE) {
        epochSec += 1;  // allow rest of method to only use seconds
    }

    // check if using last rules
    long lastHistoric = savingsInstantTransitions[savingsInstantTransitions.length - 1];
    if (lastRules.length > 0 && epochSec > lastHistoric) {
        // search year the instant is in
        ZoneOffset lastHistoricOffset = wallOffsets[wallOffsets.length - 1];
        int year = findYear(epochSec, lastHistoricOffset);
        ZoneOffsetTransition[] transArray = findTransitionArray(year);
        for (int i = transArray.length - 1; i >= 0; i--) {
            if (epochSec > transArray[i].toEpochSecond()) {
                return transArray[i];
            }
        }
        // use last from preceding year
        int lastHistoricYear = findYear(lastHistoric, lastHistoricOffset);
        if (--year > lastHistoricYear) {
            transArray = findTransitionArray(year);
            return transArray[transArray.length - 1];
        }
        // drop through
    }

    // using historic rules
    int index  = Arrays.binarySearch(savingsInstantTransitions, epochSec);
    if (index < 0) {
        index = -index - 1;
    }
    if (index <= 0) {
        return null;
    }
    return new ZoneOffsetTransition(savingsInstantTransitions[index - 1], wallOffsets[index - 1], wallOffsets[index]);
}
 

public static void main(String[] args) throws Throwable {
    int N = 10000;
    long t1970 = new java.util.Date(70, 0, 01).getTime();
    Random r = new Random();
    for (int i = 0; i < N; i++) {
        int days  = r.nextInt(50) * 365 + r.nextInt(365);
        long secs = t1970 + days * 86400 + r.nextInt(86400);
        int nanos = r.nextInt(NANOS_PER_SECOND);
        int nanos_ms = nanos / 1000000 * 1000000; // millis precision
        long millis = secs * 1000 + r.nextInt(1000);

        LocalDateTime ldt = LocalDateTime.ofEpochSecond(secs, nanos, ZoneOffset.UTC);
        LocalDateTime ldt_ms = LocalDateTime.ofEpochSecond(secs, nanos_ms, ZoneOffset.UTC);
        Instant inst = Instant.ofEpochSecond(secs, nanos);
        Instant inst_ms = Instant.ofEpochSecond(secs, nanos_ms);
        //System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);

        /////////// Timestamp ////////////////////////////////
        Timestamp ta = new Timestamp(millis);
        ta.setNanos(nanos);
        if (!isEqual(ta.toLocalDateTime(), ta)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ta.toLocalDateTime(), ta);
            throw new RuntimeException("FAILED: j.s.ts -> ldt");
        }
        if (!isEqual(ldt, Timestamp.valueOf(ldt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ldt, Timestamp.valueOf(ldt));
            throw new RuntimeException("FAILED: ldt -> j.s.ts");
        }
        Instant inst0 = ta.toInstant();
        if (ta.getTime() != inst0.toEpochMilli() ||
            ta.getNanos() != inst0.getNano() ||
            !ta.equals(Timestamp.from(inst0))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: j.s.ts -> instant -> j.s.ts");
        }
        inst = Instant.ofEpochSecond(secs, nanos);
        Timestamp ta0 = Timestamp.from(inst);
        if (ta0.getTime() != inst.toEpochMilli() ||
            ta0.getNanos() != inst.getNano() ||
            !inst.equals(ta0.toInstant())) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: instant -> timestamp -> instant");
        }

        ////////// java.sql.Date /////////////////////////////
        // j.s.d/t uses j.u.d.equals() !!!!!!!!
        java.sql.Date jsd = new java.sql.Date(millis);
        if (!isEqual(jsd.toLocalDate(), jsd)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jsd.toLocalDate(), jsd);
            throw new RuntimeException("FAILED: j.s.d -> ld");
        }
        LocalDate ld = ldt.toLocalDate();
        if (!isEqual(ld, java.sql.Date.valueOf(ld))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ld, java.sql.Date.valueOf(ld));
            throw new RuntimeException("FAILED: ld -> j.s.d");
        }
        ////////// java.sql.Time /////////////////////////////
        java.sql.Time jst = new java.sql.Time(millis);
        if (!isEqual(jst.toLocalTime(), jst)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jst.toLocalTime(), jst);
            throw new RuntimeException("FAILED: j.s.t -> lt");
        }
        // millis precision
        LocalTime lt = ldt_ms.toLocalTime();
        if (!isEqual(lt, java.sql.Time.valueOf(lt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(lt, java.sql.Time.valueOf(lt));
            throw new RuntimeException("FAILED: lt -> j.s.t");
        }
    }
    System.out.println("Passed!");
}
 

public static void main(String[] args) throws Throwable {
    int N = 10000;
    long t1970 = new java.util.Date(70, 0, 01).getTime();
    Random r = new Random();
    for (int i = 0; i < N; i++) {
        int days  = r.nextInt(50) * 365 + r.nextInt(365);
        long secs = t1970 + days * 86400 + r.nextInt(86400);
        int nanos = r.nextInt(NANOS_PER_SECOND);
        int nanos_ms = nanos / 1000000 * 1000000; // millis precision
        long millis = secs * 1000 + r.nextInt(1000);

        LocalDateTime ldt = LocalDateTime.ofEpochSecond(secs, nanos, ZoneOffset.UTC);
        LocalDateTime ldt_ms = LocalDateTime.ofEpochSecond(secs, nanos_ms, ZoneOffset.UTC);
        Instant inst = Instant.ofEpochSecond(secs, nanos);
        Instant inst_ms = Instant.ofEpochSecond(secs, nanos_ms);
        //System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);

        /////////// Timestamp ////////////////////////////////
        Timestamp ta = new Timestamp(millis);
        ta.setNanos(nanos);
        if (!isEqual(ta.toLocalDateTime(), ta)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ta.toLocalDateTime(), ta);
            throw new RuntimeException("FAILED: j.s.ts -> ldt");
        }
        if (!isEqual(ldt, Timestamp.valueOf(ldt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ldt, Timestamp.valueOf(ldt));
            throw new RuntimeException("FAILED: ldt -> j.s.ts");
        }
        Instant inst0 = ta.toInstant();
        if (ta.getTime() != inst0.toEpochMilli() ||
            ta.getNanos() != inst0.getNano() ||
            !ta.equals(Timestamp.from(inst0))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: j.s.ts -> instant -> j.s.ts");
        }
        inst = Instant.ofEpochSecond(secs, nanos);
        Timestamp ta0 = Timestamp.from(inst);
        if (ta0.getTime() != inst.toEpochMilli() ||
            ta0.getNanos() != inst.getNano() ||
            !inst.equals(ta0.toInstant())) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: instant -> timestamp -> instant");
        }

        ////////// java.sql.Date /////////////////////////////
        // j.s.d/t uses j.u.d.equals() !!!!!!!!
        java.sql.Date jsd = new java.sql.Date(millis);
        if (!isEqual(jsd.toLocalDate(), jsd)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jsd.toLocalDate(), jsd);
            throw new RuntimeException("FAILED: j.s.d -> ld");
        }
        LocalDate ld = ldt.toLocalDate();
        if (!isEqual(ld, java.sql.Date.valueOf(ld))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ld, java.sql.Date.valueOf(ld));
            throw new RuntimeException("FAILED: ld -> j.s.d");
        }
        ////////// java.sql.Time /////////////////////////////
        java.sql.Time jst = new java.sql.Time(millis);
        if (!isEqual(jst.toLocalTime(), jst)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jst.toLocalTime(), jst);
            throw new RuntimeException("FAILED: j.s.t -> lt");
        }
        // millis precision
        LocalTime lt = ldt_ms.toLocalTime();
        if (!isEqual(lt, java.sql.Time.valueOf(lt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(lt, java.sql.Time.valueOf(lt));
            throw new RuntimeException("FAILED: lt -> j.s.t");
        }
    }
    System.out.println("Passed!");
}
 

/**
 * Gets the previous transition before the specified instant.
 * <p>
 * This returns details of the previous transition after the specified instant.
 * For example, if the instant represents a point where "summer" daylight saving time
 * applies, then the method will return the transition from the previous "winter" time.
 *
 * @param instant  the instant to get the previous transition after, not null, but null
 *  may be ignored if the rules have a single offset for all instants
 * @return the previous transition after the specified instant, null if this is before the first transition
 */
public ZoneOffsetTransition previousTransition(Instant instant) {
    if (savingsInstantTransitions.length == 0) {
        return null;
    }
    long epochSec = instant.getEpochSecond();
    if (instant.getNano() > 0 && epochSec < Long.MAX_VALUE) {
        epochSec += 1;  // allow rest of method to only use seconds
    }

    // check if using last rules
    long lastHistoric = savingsInstantTransitions[savingsInstantTransitions.length - 1];
    if (lastRules.length > 0 && epochSec > lastHistoric) {
        // search year the instant is in
        ZoneOffset lastHistoricOffset = wallOffsets[wallOffsets.length - 1];
        int year = findYear(epochSec, lastHistoricOffset);
        ZoneOffsetTransition[] transArray = findTransitionArray(year);
        for (int i = transArray.length - 1; i >= 0; i--) {
            if (epochSec > transArray[i].toEpochSecond()) {
                return transArray[i];
            }
        }
        // use last from preceding year
        int lastHistoricYear = findYear(lastHistoric, lastHistoricOffset);
        if (--year > lastHistoricYear) {
            transArray = findTransitionArray(year);
            return transArray[transArray.length - 1];
        }
        // drop through
    }

    // using historic rules
    int index  = Arrays.binarySearch(savingsInstantTransitions, epochSec);
    if (index < 0) {
        index = -index - 1;
    }
    if (index <= 0) {
        return null;
    }
    return new ZoneOffsetTransition(savingsInstantTransitions[index - 1], wallOffsets[index - 1], wallOffsets[index]);
}
 

public static void main(String[] args) throws Throwable {
    int N = 10000;
    long t1970 = new java.util.Date(70, 0, 01).getTime();
    Random r = new Random();
    for (int i = 0; i < N; i++) {
        int days  = r.nextInt(50) * 365 + r.nextInt(365);
        long secs = t1970 + days * 86400 + r.nextInt(86400);
        int nanos = r.nextInt(NANOS_PER_SECOND);
        int nanos_ms = nanos / 1000000 * 1000000; // millis precision
        long millis = secs * 1000 + r.nextInt(1000);

        LocalDateTime ldt = LocalDateTime.ofEpochSecond(secs, nanos, ZoneOffset.UTC);
        LocalDateTime ldt_ms = LocalDateTime.ofEpochSecond(secs, nanos_ms, ZoneOffset.UTC);
        Instant inst = Instant.ofEpochSecond(secs, nanos);
        Instant inst_ms = Instant.ofEpochSecond(secs, nanos_ms);
        //System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);

        /////////// Timestamp ////////////////////////////////
        Timestamp ta = new Timestamp(millis);
        ta.setNanos(nanos);
        if (!isEqual(ta.toLocalDateTime(), ta)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ta.toLocalDateTime(), ta);
            throw new RuntimeException("FAILED: j.s.ts -> ldt");
        }
        if (!isEqual(ldt, Timestamp.valueOf(ldt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ldt, Timestamp.valueOf(ldt));
            throw new RuntimeException("FAILED: ldt -> j.s.ts");
        }
        Instant inst0 = ta.toInstant();
        if (ta.getTime() != inst0.toEpochMilli() ||
            ta.getNanos() != inst0.getNano() ||
            !ta.equals(Timestamp.from(inst0))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: j.s.ts -> instant -> j.s.ts");
        }
        inst = Instant.ofEpochSecond(secs, nanos);
        Timestamp ta0 = Timestamp.from(inst);
        if (ta0.getTime() != inst.toEpochMilli() ||
            ta0.getNanos() != inst.getNano() ||
            !inst.equals(ta0.toInstant())) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: instant -> timestamp -> instant");
        }

        ////////// java.sql.Date /////////////////////////////
        // j.s.d/t uses j.u.d.equals() !!!!!!!!
        java.sql.Date jsd = new java.sql.Date(millis);
        if (!isEqual(jsd.toLocalDate(), jsd)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jsd.toLocalDate(), jsd);
            throw new RuntimeException("FAILED: j.s.d -> ld");
        }
        LocalDate ld = ldt.toLocalDate();
        if (!isEqual(ld, java.sql.Date.valueOf(ld))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ld, java.sql.Date.valueOf(ld));
            throw new RuntimeException("FAILED: ld -> j.s.d");
        }
        ////////// java.sql.Time /////////////////////////////
        java.sql.Time jst = new java.sql.Time(millis);
        if (!isEqual(jst.toLocalTime(), jst)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jst.toLocalTime(), jst);
            throw new RuntimeException("FAILED: j.s.t -> lt");
        }
        // millis precision
        LocalTime lt = ldt_ms.toLocalTime();
        if (!isEqual(lt, java.sql.Time.valueOf(lt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(lt, java.sql.Time.valueOf(lt));
            throw new RuntimeException("FAILED: lt -> j.s.t");
        }
    }
    System.out.println("Passed!");
}
 

static boolean isReallyLaterThan(final Instant time) {
    final Instant t = now();
    return t.isAfter(time) && (t.toEpochMilli() > time.toEpochMilli() || t.getNano() > time.getNano());
}
 

@Override
public long getTime(Instant timestamp) {
    return timestamp.getEpochSecond() * 1000000000L + timestamp.getNano();
}
 

public static void main(String[] args) throws Throwable {
    int N = 10000;
    long t1970 = new java.util.Date(70, 0, 01).getTime();
    Random r = new Random();
    for (int i = 0; i < N; i++) {
        int days  = r.nextInt(50) * 365 + r.nextInt(365);
        long secs = t1970 + days * 86400 + r.nextInt(86400);
        int nanos = r.nextInt(NANOS_PER_SECOND);
        int nanos_ms = nanos / 1000000 * 1000000; // millis precision
        long millis = secs * 1000 + r.nextInt(1000);

        LocalDateTime ldt = LocalDateTime.ofEpochSecond(secs, nanos, ZoneOffset.UTC);
        LocalDateTime ldt_ms = LocalDateTime.ofEpochSecond(secs, nanos_ms, ZoneOffset.UTC);
        Instant inst = Instant.ofEpochSecond(secs, nanos);
        Instant inst_ms = Instant.ofEpochSecond(secs, nanos_ms);
        //System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);

        /////////// Timestamp ////////////////////////////////
        Timestamp ta = new Timestamp(millis);
        ta.setNanos(nanos);
        if (!isEqual(ta.toLocalDateTime(), ta)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ta.toLocalDateTime(), ta);
            throw new RuntimeException("FAILED: j.s.ts -> ldt");
        }
        if (!isEqual(ldt, Timestamp.valueOf(ldt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ldt, Timestamp.valueOf(ldt));
            throw new RuntimeException("FAILED: ldt -> j.s.ts");
        }
        Instant inst0 = ta.toInstant();
        if (ta.getTime() != inst0.toEpochMilli() ||
            ta.getNanos() != inst0.getNano() ||
            !ta.equals(Timestamp.from(inst0))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: j.s.ts -> instant -> j.s.ts");
        }
        inst = Instant.ofEpochSecond(secs, nanos);
        Timestamp ta0 = Timestamp.from(inst);
        if (ta0.getTime() != inst.toEpochMilli() ||
            ta0.getNanos() != inst.getNano() ||
            !inst.equals(ta0.toInstant())) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: instant -> timestamp -> instant");
        }

        ////////// java.sql.Date /////////////////////////////
        // j.s.d/t uses j.u.d.equals() !!!!!!!!
        java.sql.Date jsd = new java.sql.Date(millis);
        if (!isEqual(jsd.toLocalDate(), jsd)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jsd.toLocalDate(), jsd);
            throw new RuntimeException("FAILED: j.s.d -> ld");
        }
        LocalDate ld = ldt.toLocalDate();
        if (!isEqual(ld, java.sql.Date.valueOf(ld))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ld, java.sql.Date.valueOf(ld));
            throw new RuntimeException("FAILED: ld -> j.s.d");
        }
        ////////// java.sql.Time /////////////////////////////
        java.sql.Time jst = new java.sql.Time(millis);
        if (!isEqual(jst.toLocalTime(), jst)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jst.toLocalTime(), jst);
            throw new RuntimeException("FAILED: j.s.t -> lt");
        }
        // millis precision
        LocalTime lt = ldt_ms.toLocalTime();
        if (!isEqual(lt, java.sql.Time.valueOf(lt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(lt, java.sql.Time.valueOf(lt));
            throw new RuntimeException("FAILED: lt -> j.s.t");
        }
    }
    System.out.println("Passed!");
}
 

public static void main(String[] args) throws Throwable {
    int N = 10000;
    long t1970 = new java.util.Date(70, 0, 01).getTime();
    Random r = new Random();
    for (int i = 0; i < N; i++) {
        int days  = r.nextInt(50) * 365 + r.nextInt(365);
        long secs = t1970 + days * 86400 + r.nextInt(86400);
        int nanos = r.nextInt(NANOS_PER_SECOND);
        int nanos_ms = nanos / 1000000 * 1000000; // millis precision
        long millis = secs * 1000 + r.nextInt(1000);

        LocalDateTime ldt = LocalDateTime.ofEpochSecond(secs, nanos, ZoneOffset.UTC);
        LocalDateTime ldt_ms = LocalDateTime.ofEpochSecond(secs, nanos_ms, ZoneOffset.UTC);
        Instant inst = Instant.ofEpochSecond(secs, nanos);
        Instant inst_ms = Instant.ofEpochSecond(secs, nanos_ms);
        //System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);

        /////////// Timestamp ////////////////////////////////
        Timestamp ta = new Timestamp(millis);
        ta.setNanos(nanos);
        if (!isEqual(ta.toLocalDateTime(), ta)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ta.toLocalDateTime(), ta);
            throw new RuntimeException("FAILED: j.s.ts -> ldt");
        }
        if (!isEqual(ldt, Timestamp.valueOf(ldt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ldt, Timestamp.valueOf(ldt));
            throw new RuntimeException("FAILED: ldt -> j.s.ts");
        }
        Instant inst0 = ta.toInstant();
        if (ta.getTime() != inst0.toEpochMilli() ||
            ta.getNanos() != inst0.getNano() ||
            !ta.equals(Timestamp.from(inst0))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: j.s.ts -> instant -> j.s.ts");
        }
        inst = Instant.ofEpochSecond(secs, nanos);
        Timestamp ta0 = Timestamp.from(inst);
        if (ta0.getTime() != inst.toEpochMilli() ||
            ta0.getNanos() != inst.getNano() ||
            !inst.equals(ta0.toInstant())) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: instant -> timestamp -> instant");
        }

        ////////// java.sql.Date /////////////////////////////
        // j.s.d/t uses j.u.d.equals() !!!!!!!!
        java.sql.Date jsd = new java.sql.Date(millis);
        if (!isEqual(jsd.toLocalDate(), jsd)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jsd.toLocalDate(), jsd);
            throw new RuntimeException("FAILED: j.s.d -> ld");
        }
        LocalDate ld = ldt.toLocalDate();
        if (!isEqual(ld, java.sql.Date.valueOf(ld))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ld, java.sql.Date.valueOf(ld));
            throw new RuntimeException("FAILED: ld -> j.s.d");
        }
        ////////// java.sql.Time /////////////////////////////
        java.sql.Time jst = new java.sql.Time(millis);
        if (!isEqual(jst.toLocalTime(), jst)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jst.toLocalTime(), jst);
            throw new RuntimeException("FAILED: j.s.t -> lt");
        }
        // millis precision
        LocalTime lt = ldt_ms.toLocalTime();
        if (!isEqual(lt, java.sql.Time.valueOf(lt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(lt, java.sql.Time.valueOf(lt));
            throw new RuntimeException("FAILED: lt -> j.s.t");
        }
    }
    System.out.println("Passed!");
}
 

public static void main(String[] args) throws Throwable {
    int N = 10000;
    long t1970 = new java.util.Date(70, 0, 01).getTime();
    Random r = new Random();
    for (int i = 0; i < N; i++) {
        int days  = r.nextInt(50) * 365 + r.nextInt(365);
        long secs = t1970 + days * 86400 + r.nextInt(86400);
        int nanos = r.nextInt(NANOS_PER_SECOND);
        int nanos_ms = nanos / 1000000 * 1000000; // millis precision
        long millis = secs * 1000 + r.nextInt(1000);

        LocalDateTime ldt = LocalDateTime.ofEpochSecond(secs, nanos, ZoneOffset.UTC);
        LocalDateTime ldt_ms = LocalDateTime.ofEpochSecond(secs, nanos_ms, ZoneOffset.UTC);
        Instant inst = Instant.ofEpochSecond(secs, nanos);
        Instant inst_ms = Instant.ofEpochSecond(secs, nanos_ms);
        //System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);

        /////////// Timestamp ////////////////////////////////
        Timestamp ta = new Timestamp(millis);
        ta.setNanos(nanos);
        if (!isEqual(ta.toLocalDateTime(), ta)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ta.toLocalDateTime(), ta);
            throw new RuntimeException("FAILED: j.s.ts -> ldt");
        }
        if (!isEqual(ldt, Timestamp.valueOf(ldt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ldt, Timestamp.valueOf(ldt));
            throw new RuntimeException("FAILED: ldt -> j.s.ts");
        }
        Instant inst0 = ta.toInstant();
        if (ta.getTime() != inst0.toEpochMilli() ||
            ta.getNanos() != inst0.getNano() ||
            !ta.equals(Timestamp.from(inst0))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: j.s.ts -> instant -> j.s.ts");
        }
        inst = Instant.ofEpochSecond(secs, nanos);
        Timestamp ta0 = Timestamp.from(inst);
        if (ta0.getTime() != inst.toEpochMilli() ||
            ta0.getNanos() != inst.getNano() ||
            !inst.equals(ta0.toInstant())) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            throw new RuntimeException("FAILED: instant -> timestamp -> instant");
        }

        ////////// java.sql.Date /////////////////////////////
        // j.s.d/t uses j.u.d.equals() !!!!!!!!
        java.sql.Date jsd = new java.sql.Date(millis);
        if (!isEqual(jsd.toLocalDate(), jsd)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jsd.toLocalDate(), jsd);
            throw new RuntimeException("FAILED: j.s.d -> ld");
        }
        LocalDate ld = ldt.toLocalDate();
        if (!isEqual(ld, java.sql.Date.valueOf(ld))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(ld, java.sql.Date.valueOf(ld));
            throw new RuntimeException("FAILED: ld -> j.s.d");
        }
        ////////// java.sql.Time /////////////////////////////
        java.sql.Time jst = new java.sql.Time(millis);
        if (!isEqual(jst.toLocalTime(), jst)) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(jst.toLocalTime(), jst);
            throw new RuntimeException("FAILED: j.s.t -> lt");
        }
        // millis precision
        LocalTime lt = ldt_ms.toLocalTime();
        if (!isEqual(lt, java.sql.Time.valueOf(lt))) {
            System.out.printf("ms: %16d  ns: %10d  ldt:[%s]%n", millis, nanos, ldt);
            print(lt, java.sql.Time.valueOf(lt));
            throw new RuntimeException("FAILED: lt -> j.s.t");
        }
    }
    System.out.println("Passed!");
}
 

/**
 * Obtains an instance of {@code Timestamp} from an {@link Instant} object.
 * <p>
 * {@code Instant} can store points on the time-line further in the future
 * and further in the past than {@code Date}. In this scenario, this method
 * will throw an exception.
 *
 * @param instant  the instant to convert
 * @return an {@code Timestamp} representing the same point on the time-line as
 *  the provided instant
 * @exception NullPointerException if {@code instant} is null.
 * @exception IllegalArgumentException if the instant is too large to
 *  represent as a {@code Timesamp}
 * @since 1.8
 */
public static Timestamp from(Instant instant) {
    try {
        Timestamp stamp = new Timestamp(instant.getEpochSecond() * MILLIS_PER_SECOND);
        stamp.nanos = instant.getNano();
        return stamp;
    } catch (ArithmeticException ex) {
        throw new IllegalArgumentException(ex);
    }
}
 

/**
 * Converts the given instant into a value in this axis unit.
 * If the given instant is {@code null}, then this method returns {@link Double#NaN}.
 * This method is the converse of {@link #toInstant(double)}.
 *
 * @param  time  the value as an instant, or {@code null}.
 * @return the value in this axis unit, or {@link Double#NaN} if the given instant is {@code null}.
 *         Unit of measurement is given by {@link #getUnit()}.
 *
 * @since 1.0
 */
public double toValue(final Instant time) {
    if (time != null) {
        double t = Math.subtractExact(time.getEpochSecond(), origin);
        t += time.getNano() / (double) NANOS_PER_SECOND;
        return toSeconds.inverse().convert(t);
    } else {
        return Double.NaN;
    }
}
 

/**
 * Obtains an instance of {@code Timestamp} from an {@link Instant} object.
 * <p>
 * {@code Instant} can store points on the time-line further in the future
 * and further in the past than {@code Date}. In this scenario, this method
 * will throw an exception.
 *
 * @param instant  the instant to convert
 * @return an {@code Timestamp} representing the same point on the time-line as
 *  the provided instant
 * @exception NullPointerException if {@code instant} is null.
 * @exception IllegalArgumentException if the instant is too large to
 *  represent as a {@code Timesamp}
 * @since 1.8
 */
public static Timestamp from(Instant instant) {
    try {
        Timestamp stamp = new Timestamp(instant.getEpochSecond() * MILLIS_PER_SECOND);
        stamp.nanos = instant.getNano();
        return stamp;
    } catch (ArithmeticException ex) {
        throw new IllegalArgumentException(ex);
    }
}
 

/**
 * Obtains an instance of {@code Timestamp} from an {@link Instant} object.
 * <p>
 * {@code Instant} can store points on the time-line further in the future
 * and further in the past than {@code Date}. In this scenario, this method
 * will throw an exception.
 *
 * @param instant  the instant to convert
 * @return an {@code Timestamp} representing the same point on the time-line as
 *  the provided instant
 * @exception NullPointerException if {@code instant} is null.
 * @exception IllegalArgumentException if the instant is too large to
 *  represent as a {@code Timesamp}
 * @since 1.8
 */
public static Timestamp from(Instant instant) {
    try {
        Timestamp stamp = new Timestamp(instant.getEpochSecond() * MILLIS_PER_SECOND);
        stamp.nanos = instant.getNano();
        return stamp;
    } catch (ArithmeticException ex) {
        throw new IllegalArgumentException(ex);
    }
}