A DESCRIPTION OF THE PROBLEM :
ZoneRules.of() implies that transitionList is a superset of standardOffsetTransitionList but doesn't check that. Then it's possible to construct ZoneRules instances that don't work correctly.


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
IllegalArgumentException from ZoneRules.of()
ACTUAL -
AssertionError

---------- BEGIN SOURCE ----------
    @Test
    public void zoneRulesTest() {
        LocalDateTime transitionDay = LocalDateTime.of(2020, 1, 1, 2, 0);
        ZoneOffsetTransition trans = ZoneOffsetTransition.of(
                transitionDay,
                ZoneOffset.ofHours(1),
                ZoneOffset.ofHours(2)
        );
        ZoneRules rules = ZoneRules.of(ZoneOffset.ofHours(1), ZoneOffset.ofHours(1),
                Arrays.asList(trans),
                Collections.emptyList(), Collections.emptyList());

        Assert.assertEquals(ZoneOffset.ofHours(2), rules.getOffset(
                transitionDay.plusDays(7).toInstant(ZoneOffset.UTC)));
    }
---------- END SOURCE ----------