RFR: 8276766: Enable jar and jmod to produce deterministic timestamped content [v9]

[Alan Bateman]

On Mon, 29 Nov 2021 16:19:01 GMT, Andrew Leonard <aleonard at openjdk.org> wrote:

>> Add a new --source-date <TIMESTAMP> (epoch seconds) option to jar and jmod to allow specification of time to use for created/updated jar/jmod entries. This then allows the ability to make the content deterministic.
>> 
>> Signed-off-by: Andrew Leonard <anleonar at redhat.com>
>
> Andrew Leonard has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - 8276766: Enable jar and jmod to produce deterministic timestamped content
>    
>    Signed-off-by: Andrew Leonard <anleonar at redhat.com>
>  - 8276766: Enable jar and jmod to produce deterministic timestamped content
>    
>    Signed-off-by: Andrew Leonard <anleonar at redhat.com>

@andrew-m-leonard I see you've add several APIs to ZipEntry in this PR. I think this part will require discussion as it's not immediately clear that we should over burden the ZipEntry API as proposed.

-------------

Changes requested by alanb (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/6481