8231174: (fs) FileTime should have 100ns resolution (win)

[Brian Burkhalter]

> On Sep 23, 2019, at 2:28 PM, Brian Burkhalter <brian.burkhalter at oracle.com> wrote:
> 
>> On Sep 23, 2019, at 1:14 PM, Alan Bateman <Alan.Bateman at oracle.com <mailto:Alan.Bateman at oracle.com>> wrote:
>> 
>> On 23/09/2019 20:13, Brian Burkhalter wrote:
>>> 
>>> I think that this version [1,2] should address the concern.
>>> 
>> Partly, there is also this adjustment that could overflow:
>>    time += WINDOWS_EPOCH_IN_100NS;
> 
> I thought of that but didn’t think it could happen or is very improbable. This [1] should account for it as well.

Here’s one more iteration with (hopefully) simplified versions of toFileTime() and toWindowsTime().

http://cr.openjdk.java.net/~bpb/8231174/webrev.04/

Thanks,

Brian
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