RFR: 8276766: Enable jar and jmod to produce deterministic timestamped content [v4]

[Andrew Leonard]

> Add a new --source-date <TIMESTAMP> (epoch milliseconds) 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 with a new target base due to a merge or a rebase. The pull request now contains five commits:

 - 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>
 - 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>
 - 8276766: Enable jar and jmod to produce deterministic timestamped content
   
   Signed-off-by: Andrew Leonard <anleonar at redhat.com>

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

Changes: https://git.openjdk.java.net/jdk/pull/6481/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6481&range=03
  Stats: 173 lines in 10 files changed: 148 ins; 0 del; 25 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6481.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6481/head:pull/6481

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