WRITE_DATES_WITH_ZONE_ID feature not working when applied on @JsonFormat annotation

[mandyWW]

Copied over from FasterXML/jackson-databind#1175 as was assigned to wrong module.

Firstly thank you for a fantastic library :-) Just one small issue:-

I am using Jackson 2.7.3 and I would like to specify the date format pattern and whether or not to display timezone information on a per property basis. Therefore I have specified

@JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy hh:mm:ss", with = JsonFormat.Feature.WRITE_DATES_WITH_ZONE_ID)

on my date property - see example class below:-

private static class DummyClassWithDate {
        @JsonProperty("name")
        private String name;
        @JsonProperty("age")
        private int age;
        @JsonProperty("date")
        @JsonFormat
                (shape = JsonFormat.Shape.STRING, pattern = "dd-MM-yyyy hh:mm:ss Z", with = JsonFormat.Feature.WRITE_DATES_WITH_ZONE_ID)
        private DateTime date;

        public DummyClassWithDate() {

        }

        public DummyClassWithDate(String name, int age, DateTime date) {
            this.name = name;
            this.age = age;
            this.date = date;
        }

        public String getName() {
            return name;
        }

        public int getAge() {
            return age;
        }

        public DateTime getDate() {
            return date;
        }

        public void setName(String aName) {
            name = aName;
        }

        public void setAge(int anAge) {
            age = anAge;
        }

        public void setDate(DateTime aDate) {
            date = aDate;
        }

    }

However, although the pattern is being used, the timezone is not being preserved when serialized. Here is a unit test which shows the problem:

    private final DummyClassWithDate dummyClassWithDateIncludingTimezone = new DummyClassWithDate("Test", 50, new DateTime(2015, 11, 23, 22, 06, 39, DateTimeZone.forID("Asia/Krasnoyarsk")));

    @Test
    public void testJacksonAnnotatedPOJOWithDateWithTimezoneToJson() throws Exception {
        ObjectMapper mapper = new ObjectMapper();
        mapper.registerModule(new JodaModule());

        assertEquals("{\"name\":\"Test\",\"age\":50,\"date\":\"23-11-2015 10:06:39 +0800[Asia/Krasnoyarsk]\"}",mapper.writeValueAsString(dummyClassWithDateIncludingTimezone));
    }

and the results of running the test:

junit.framework.ComparisonFailure: 
Expected :{"name":"Test","age":50,"date":"23-11-2015 10:06:39 +0800[Asia/Krasnoyarsk]"}
Actual   :{"name":"Test","age":50,"date":"23-11-2015 02:06:39 +0000"}

If I change my test to add in:

mapper.configure(SerializationFeature.WRITE_DATES_WITH_ZONE_ID, true);
this fixes the issue however this is applying the setting to dates on ALL classes and I really only want it applied to specific properties.

[cowtowncoder]

Thanks! Sounds like some piece of configuration handling is missing from Joda deserializer classes. It might be easiest to compare jsr310 module's implementation wrt @JsonFormat since I think latter has slightly more up-to-date support, and it is possible some improvements have not been merged.

[cowtowncoder]

Implemented, will be in 2.8.0 to be released soon.