8286447: [Linux] AWT should start in Headless mode if headful AWT library not installed

[GoeLin]

Clean backport to 17.

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change requires CSR request JDK-8324306 to be approved
• JDK-8286447 needs maintainer approval

Issues

• JDK-8286447: [Linux] AWT should start in Headless mode if headful AWT library not installed (Enhancement - P4 - Requested)
• JDK-8324306: [Linux] AWT should start in Headless mode if headful AWT library not installed (CSR)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk17u-dev.git pull/3883/head:pull/3883
$ git checkout pull/3883

Update a local copy of the PR:
$ git checkout pull/3883
$ git pull https://git.openjdk.org/jdk17u-dev.git pull/3883/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 3883

View PR using the GUI difftool:
$ git pr show -t 3883

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk17u-dev/pull/3883.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back goetz! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[mlbridge]

Webrevs

• 00: Full (7ba6ef25)

[openjdk]

⚠️ @GoeLin This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.