[jdk17u-dev] RFR: 8276766: Enable jar and jmod to produce deterministic timestamped content [v2]

[Andrew Leonard]

> This backport (along with others in-progress) enables reproducible building of jar's and jmod's with the addition of a new --date <source date> option. Enabling reproducible timestamped jar & jmod content.
> 
> jdk CSR: https://bugs.openjdk.java.net/browse/JDK-8277755

Andrew Leonard has updated the pull request incrementally with one additional commit since the last revision:

  Backport db68a0ce1ce152345320e70acb7e9842d2f1ece4
  
  Signed-off-by: Andrew Leonard <anleonar at redhat.com>

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

Changes:
  - all: https://git.openjdk.java.net/jdk17u-dev/pull/82/files
  - new: https://git.openjdk.java.net/jdk17u-dev/pull/82/files/170d7e41..541bcff8

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=82&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=82&range=00-01

  Stats: 2 lines in 2 files changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/82.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/82/head:pull/82

PR: https://git.openjdk.java.net/jdk17u-dev/pull/82