java.time.ZoneId.systemDefalut() overhead

[Peter Levart]

On 02/23/2015 10:55 PM, Xueming Shen wrote:
>> If we're talking about using java.time from ZipEntry, then that's 
>> another story. I belive that VM startup does not need the conversion 
>> from DOS time to Java time in ZipEntry, but that should be checked to 
>> be sure...
>
> I was talking about to use j.time for the dos<-> conversion, I would 
> assume that
> was the original optimization you were talking about. With Claes's 
> change, it is
> possible the j.u.zip code no longer needs to the dos->java time 
> conversion during
> startup.  The dos timestamp in Zip spec is indeed a j.time.LocalDateTime.

You're right. I'm thinking of new proposed code which does lazy DOS -> 
Java conversion. Previously (or currently, to be precise), constructing 
ZipEntry already triggered conversion.

Peter