JDK9 changes to Date?

[Naoto Sato]

Hi Jochen,

It is likely that these are caused by the default locale data change to 
CLDR with 8008577.

On 7/9/15 10:12 AM, Jochen Theodorou wrote:
> Hi,
>
> after fixing some JDK9 related bugs in our build for Groovy we stumbled
> over
>
> new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy",
> Locale.US).parse("Thu Jan 01 01:00:00 CET 1970")
>
> failing to parse with
>
>> java.text.ParseException: Unparseable date: "Thu Jan 01 01:00:00 CET
>> 1970"
>>     at java.text.DateFormat.parse(DateFormat.java:366)
>
> This happens not with my local machine using jdk1.9.0-ea-b68, but it
> does fail on our CI server used revision 0906b79c9df4 for this.

This seems to be the same issue which has already been reported in 8130845.

>
> A second case is this one:
>
>>         Locale locale = Locale.UK
>>         Locale.setDefault locale
>>         TimeZone.setDefault TimeZone.getTimeZone('Etc/GMT')
>>         Date d = new Date(0)
>>         assertEquals '01/01/70',
>> DateFormat.getDateInstance(DateFormat.SHORT).format(d);
>
> the assert used to work, but now the format changed to print 01/01/1970
> instead of 01/01/70. With the same constellation regarding jdk versions.

This is expected, as the short date format for UK in CLDR is "dd/MM/y".

Naoto