Proposed test changes to make FA testing of jpackage more flexible

[alexeysemenyukoracle]

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Progress

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Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk pull/9331/head:pull/9331
$ git checkout pull/9331

Update a local copy of the PR:
$ git checkout pull/9331
$ git pull https://git.openjdk.org/jdk pull/9331/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 9331

View PR using the GUI difftool:
$ git pr show -t 9331

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/9331.diff

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[openjdk]

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[alexeysemenyukoracle]

This PR is supplementary for #9224.

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@alexeysemenyukoracle This pull request has been inactive for more than 16 weeks and will now be automatically closed. If you would like to continue working on this pull request in the future, feel free to reopen it! This can be done using the /open pull request command.