OK, I have created an isssue.
https://github.com/FasterXML/jackson-module-kotlin/issues/934
Please reply to the discussion here.
2025年3月22日土曜日 14:53:33 UTC+9 Joo Hyuk Kim:
> I would like to suggest bring this to GH discussion for more ideas.
>
> 2025년 3월 22일 (토) 오후 2:50, wrongwrong <boran...@gmail.com>님이 작성:
>
>> Thank you all for the replies.
>>
>> > If I understand your problem correctly, IllegalArgumentException would
>> be the most appropriate choice because null is a valid response
>> from readValue.
>>
>> In edge cases, the return value of readValue may not be valid.
>> Since ObjectMapper can be inherited, it is possible that null will be
>> returned due to an implementation error.
>> It is even possible that an invalid value is returned.
>>
>> Personally, I feel that IllegalArgumentException may not be the way to go
>> in such cases.
>>
>> > Or consider InvalidNullException?
>>
>> I initially thought this would be better, but had the above concerns.
>> Would the more abstract JsonMappingException be more appropriate?
>>
>> 2025年3月22日土曜日 11:32:12 UTC+9 Joo Hyuk Kim:
>>
>>> Or consider InvalidNullException?
>>> Its doc says...
>>>
>>> /**
>>> * Exception thrown if a `null` value is being encountered for a property
>>> * designed as "fail on null" property (see {@link
>>> com.fasterxml.jackson.annotation.JsonSetter}).
>>> *
>>> * @since 2.9
>>> */
>>> public class InvalidNullException
>>>
>>>
>>> On Sat, Mar 22, 2025 at 7:43 AM Sandeep Gaur <sandeep...@gmail.com>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> If I understand your problem correctly, IllegalArgumentException would
>>>> be the most appropriate choice because null is a valid response from
>>>> readValue. The additional restriction is being imposed by the client,
>>>> making IllegalArgumentException the right fit for enforcing this
>>>> constraints.
>>>>
>>>> Thanks,
>>>> Sandeep gaur
>>>>
>>>>
>>>>
>>>> On Sat, 22 Mar, 2025, 12:39 am wrongwrong, <boran...@gmail.com> wrote:
>>>>
>>>>> Hello everyone, I'm looking for advice on implementation in
>>>>> kotlin-module.
>>>>>
>>>>> The ObjectMapper.readValue may return null as a result.
>>>>> On the other hand, in the kotlin-module extension, if the user calls
>>>>> readValue expecting non-null, an error should be thrown if the result is
>>>>> null(https://github.com/FasterXML/jackson-module-kotlin/issues/399).
>>>>>
>>>>> I have learned how to achieve this, but am struggling with which
>>>>> exception should be thrown as a validation error.
>>>>>
>>>>> 1. NPE
>>>>> 2. some exception defined in Jackson (what would be appropriate?)
>>>>> 3. any proprietary exception in kotlin-module
>>>>>
>>>>> Personally, I think 2 is better, but is there any appropriate
>>>>> exception?
>>>>> Any advice would be appreciated.
>>>>>
>>>>> --
>>>>> You received this message because you are subscribed to the Google
>>>>> Groups "jackson-dev" group.
>>>>> To unsubscribe from this group and stop receiving emails from it, send
>>>>> an email to jackson-dev...@googlegroups.com.
>>>>> To view this discussion visit
>>>>> https://groups.google.com/d/msgid/jackson-dev/1dbee532-1337-46f2-b81c-563503656aa8n%40googlegroups.com
>>>>>
>>>>> <https://groups.google.com/d/msgid/jackson-dev/1dbee532-1337-46f2-b81c-563503656aa8n%40googlegroups.com?utm_medium=email&utm_source=footer>
>>>>> .
>>>>>
>>>> --
>>>> You received this message because you are subscribed to the Google
>>>> Groups "jackson-dev" group.
>>>> To unsubscribe from this group and stop receiving emails from it, send
>>>> an email to jackson-dev...@googlegroups.com.
>>>>
>>> To view this discussion visit
>>>> https://groups.google.com/d/msgid/jackson-dev/CAOddboJ5Q-za4Ncy5kiM1%2Bn%3D9_sVzd%2BOeLWNFwSs5FpNGAXdPw%40mail.gmail.com
>>>>
>>>> <https://groups.google.com/d/msgid/jackson-dev/CAOddboJ5Q-za4Ncy5kiM1%2Bn%3D9_sVzd%2BOeLWNFwSs5FpNGAXdPw%40mail.gmail.com?utm_medium=email&utm_source=footer>
>>>> .
>>>>
>>> --
>> You received this message because you are subscribed to the Google Groups
>> "jackson-dev" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to jackson-dev...@googlegroups.com.
>>
> To view this discussion visit
>> https://groups.google.com/d/msgid/jackson-dev/838c3c9c-9584-4728-b9b1-569d61be071bn%40googlegroups.com
>>
>> <https://groups.google.com/d/msgid/jackson-dev/838c3c9c-9584-4728-b9b1-569d61be071bn%40googlegroups.com?utm_medium=email&utm_source=footer>
>> .
>>
>
--
You received this message because you are subscribed to the Google Groups
"jackson-dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to jackson-dev+unsubscr...@googlegroups.com.
To view this discussion visit
https://groups.google.com/d/msgid/jackson-dev/e812899a-0e5e-4b34-9fd5-35b692ae7a5dn%40googlegroups.com.
