[threeten-dev] SimpleDateFormat and DateTimeFormatter produce different result for JapaneseDate

[Stephen Colebourne]

I don't want special cases in the new code that aren't in CLDR. But if
its typiclally used in Japan then it may be necessary. Its not really
my call.
Stephen

On 30 April 2013 09:18, Masayoshi Okutsu <masayoshi.okutsu at oracle.com> wrote:
> The text representation support for the year value is SDF's own extension
> which isn't in CLDR. Do you really want to support the same thing?
>
> Masayoshi
>
>
> On 4/30/2013 3:59 PM, Stephen Colebourne wrote:
>>
>> Functionality available in SDF but not in DateTimeFormatter sounds
>> like a bug. Perhaps you should raise an issue for any differences you
>> know of?
>>
>> Stephen
>>
>>
>> On 30 April 2013 06:52, Masayoshi Okutsu <masayoshi.okutsu at oracle.com>
>> wrote:
>>>
>>> Hi,
>>>
>>> This one isn't reproducible with b87. Both SimpleDateFormat and
>>> DateTimeFormatter produce the era name in Japanese.
>>>
>>> BTW, SimpleDateFormat and DateTimeFormatter patterns aren't compatible.
>>> DateTimeFormatter doesn't support the text presentation of the first year
>>> of
>>> an era, for example.
>>>
>>> Thanks,
>>> Masayoshi
>>>
>>>
>>> On 4/27/2013 4:18 PM, Frank Ding wrote:
>>>>
>>>> Hi threeten guys
>>>>    Another issue was discovered in recent date time code (b87). Below is
>>>> the test case.
>>>>
>>>>          Locale jplocale = new Locale("ja", "JP", "JP");
>>>>          String str;
>>>>          String pattern = "GGGGyyyy\u5e74 MMMM d\u65e5";
>>>>
>>>>          System.out.println("--- Calendar SimpleDateFormst ---");
>>>>          Calendar cal = Calendar.getInstance();
>>>>          cal.set(1989,0,8); // = Heisei 1
>>>>
>>>>          SimpleDateFormat format = new SimpleDateFormat(pattern,
>>>> jplocale);
>>>>          str = format.format(cal.getTime());
>>>>          System.out.println("\""+pattern+"\" "+str);
>>>>
>>>>          System.out.println("--- JapaneseDate DateTimeFormatter ---");
>>>>          JapaneseDate date = JapaneseDate.of(1989,1,8);
>>>>          DateTimeFormatter dtf =
>>>> DateTimeFormatter.ofPattern(pattern).withLocale(jplocale);
>>>>          str = date.format(dtf);
>>>>          System.out.println("\""+pattern+"\" "+str);
>>>>
>>>>    The actual output is  (Converted Japanese characters to Unicode by
>>>> native2ascii command)
>>>>>
>>>>> --- Calendar SimpleDateFormst ---
>>>>> "GGGGyyyy\u5e74 MMMM d\u65e5" \u5e73\u6210\u5143\u5e74 1\u6708 8\u65e5
>>>>> --- JapaneseDate DateTimeFormatter ---
>>>>> "GGGGyyyy\u5e74 MMMM d\u65e5" Heisei0001\u5e74 1\u6708 8\u65e5
>>>>
>>>>    It looks like a bug in DateTimeFormatter.  Could anybody take a look
>>>> at
>>>> it and confirm?
>>>>
>>>> Best regards,
>>>> Frank
>>>>
>>>>
>