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

[Andrew Leonard]

On Tue, 30 Nov 2021 19:31:37 GMT, John Neffenger <jgneff at openjdk.org> wrote:

> > Both basically truncate the timezone.
> 
> There's a difference. The first option saves a DOS date and time that depends on the time zone of the build machine due to the ISO 8601 string returned by default from the `git` and `date` commands, which is what everyone will be using. Those commands return the local time zone offset by default, which is what breaks your current implementation.

@jgneff I think you've lost me on this one so example may help me please..
Whichever we use, we have to use e.setTimeLocal(), so can't see what the difference is?

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