private static Date dateFromUTC(int year, int month, int day, int hour, int minute, int second) {
        Calendar c = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
        c.set(year, month, day, hour, minute, second);
        c.set(Calendar.MILLISECOND, 0);
        return c.getTime();
    }
This is a certificate whose keyUsage extension has more than nine bits. The getKeyUsage()
method internally rounds up to nine bits, so this tests what happens when it does not need to
round.
common/src/test/java/org/conscrypt/java/security/cert/X509CertificateTest.java