8274293: Build failure on macOS with Xcode 13.0 as vfork is deprecated

[xpbob]

Backport 252aaa9249d8979366b37d59487b5b039d923e35

bug link:https://bugs.openjdk.java.net/browse/JDK-8274293

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8274293: Build failure on macOS with Xcode 13.0 as vfork is deprecated

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk17u pull/182/head:pull/182
$ git checkout pull/182

Update a local copy of the PR:
$ git checkout pull/182
$ git pull https://git.openjdk.java.net/jdk17u pull/182/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 182

View PR using the GUI difftool:
$ git pr show -t 182

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk17u/pull/182.diff

[bridgekeeper]

👋 Welcome back xpbob! 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 backport pull request has now been updated with issue from the original commit.

[openjdk]

@xpbob This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8274293: Build failure on macOS with Xcode 13.0 as vfork is deprecated

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[mlbridge]

Webrevs

• 00: Full (7ed03578)

[xpbob]

Forgetting to enable tests

[xpbob]

new link #183