/** * Asserts that the date {@code d2} is equals or after {@code d1}. */ private static void assertOrdered(final DateType t1, final Date d1, final DateType t2, final Date d2) { if (d1 != null && d2.before(d1)) { fail("The ‘" + t2.identifier() + "’ date (" + d2 + ") shall be equal or after " + "the ‘" + t1.identifier() + "’ date (" + d1 + ")."); } }