RFR: 8264449: Enable reproducible builds with SOURCE_DATE_EPOCH [v8]

[John Neffenger]

On Tue, 3 Jan 2023 06:37:14 GMT, John Neffenger <jgneff at openjdk.org> wrote:

> I just discovered that the `--date` argument for the `jmod` tool was back-ported to JDK 17, so I didn't need to wait for JDK 19 after all! Oh well.

Actually, it turns out I did have to wait for JDK 19 after all. Before reaching version 19.0.1, the boot JDK for building JavaFX (`jfx.build.jdk.version`) went from version 17.0.2 to 18, 18.0.1, and 18.0.2, none of which had the feature. The feature was back ported from version 19 to 17.0.4 or later. See [JDK-8283182][1]. That makes me feel a little better about the delay. 😄

[1]: https://bugs.openjdk.org/browse/JDK-8283182

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

PR: https://git.openjdk.org/jfx/pull/446