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

[Masayoshi Okutsu]

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
>>>
>>>