RFR: 8253149: Building an installer from invalid app image fails on Window… [v2]

[Andy Herrick]

> 8253149: Building an installer from invalid app image fails on Windows and Linux
> When jpackage builds a package from an app-image that was not generated by jpackage, the tool should give user a
> warning message, and then complete the package anyway.

Andy Herrick has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev
excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since
the last revision:

 - 8253149: Building an installer from invalid app image fails (revision 1)
 - Merge branch 'master' into JDK-8253149
 - 8253149: Building an installer from invalid app image fails on Windows and Linux

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/271/files
  - new: https://git.openjdk.java.net/jdk/pull/271/files/6c089a95..e3f8a8fa

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=271&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=271&range=00-01

  Stats: 12895 lines in 400 files changed: 7857 ins; 3987 del; 1051 mod
  Patch: https://git.openjdk.java.net/jdk/pull/271.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/271/head:pull/271

PR: https://git.openjdk.java.net/jdk/pull/271