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

[Frank Ding]

Hi Masayoshi,
   So it's not a bug because "DateTimeFormatter doesn't support the text 
presentation of the first year of era"?

Best regards,
Frank
On 5/3/2013 1:54 AM, Stephen Colebourne wrote:
> 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
>>>>>
>>>>>