RFR: 8283315: jrt-fs.jar not always deterministically built [v3]

[Andrew Leonard]

> JarArchive.gmk uses an un-sorted jar @<file list\>, thus depending on exactly how that list gets ordered by relevant OS querys. Such queries can differ in order on different CPU architectures (Intel vs AMD).
> 
> This PR adds a "sort" to the jar @<file list\> contents.
> 
> Signed-off-by: Andrew Leonard <anleonar at redhat.com>

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

  Retrigger checks

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7852/files
  - new: https://git.openjdk.java.net/jdk/pull/7852/files/897726be..beab5888

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7852&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7852&range=01-02

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7852.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7852/head:pull/7852

PR: https://git.openjdk.java.net/jdk/pull/7852