RFR: 8335912: Add an operation mode to the jar command when extracting to not overwriting existing files [v4]

[Lance Andersen]

On Fri, 27 Sep 2024 01:41:33 GMT, Henry Jen <henryjen at openjdk.org> wrote:

>> This PR support a -k, --keep options like tar that allows jar to avoid override existing files.
>
> Henry Jen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Address review feedbacks

src/jdk.jartool/share/classes/sun/tools/jar/Main.java line 587:

> 585:                             break;
> 586:                         case 'k':
> 587:                             kflag = true;

I am wondering if a warning should be displayed if this options is specified with any option other than 'x'

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PR Review Comment: https://git.openjdk.org/jdk/pull/21141#discussion_r1780928849