final Map<String, Object> map = Map.of("time", "not_a_number");
        assertEquals(0L, coordinatorHelper.getLongValue(map, "time"));
    }

    @Test
    public void test_getLongValue_missing() {
        final Map<String, Object> map = Map.of("key", "value");
        assertEquals(0L, coordinatorHelper.getLongValue(map, "key"));
    }