On Thu, 18 Nov 2021 11:40:24 GMT, Magnus Ihse Bursie <i...@openjdk.org> wrote:

>> @magicus 
>> ah right, got you.  So the order of each version's String[] is as ordered on 
>> the jar cmd line args:
>> https://github.com/openjdk/jdk/blob/3e87db19bb7e2359e4b1ceaac7c123542345ecb1/src/jdk.jartool/share/classes/sun/tools/jar/Main.java#L664
>> 
>> So for the same jar cmdline input, the output will be deterministic, as in 
>> the same order.
>> If we think we need to be deterministic for different jar cmdline input for 
>> the same set of files, I can add a sort, but that wasn't my aim. eg: both 
>> these produce the same order?
>>     jar --create --file my.jar --release 9 v9classesdir1 v9classesdir2
>>     jar --create --file my.jar --release 9 v9classesdir2 v9classesdir1 
>> My aim was same input == same output
>> ?
>
> Fair enough, that's a good answer. I did not know the origin of these values. 
> If they are in command line order, I completely agree with you that this is 
> the behavior we want.

@magicus Thanks for clarifying for my question.

@andrew-m-leonard Keeping it as the command-line order is good.   I suggest to 
add a comment to describe the order of  entries of `filesMap` and the order of 
the values.

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PR: https://git.openjdk.java.net/jdk/pull/6395

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