Method isIntegralZero

src/main/java/com/amazon/ion/Timestamp.java:869–874

(final BigDecimal decimal)

    }

    private boolean isIntegralZero(final BigDecimal decimal) {
        // zero || no low-order bits || < 1.0
        return  decimal.signum() == 0
            || decimal.scale() < -63
            || (decimal.precision() - decimal.scale() <= 0);
    }

    private static void throwTimestampOutOfRangeError(Number millis) {
        throw new IllegalArgumentException("millis: " + millis + " is outside of valid the range: from "