8277517: Bump minimum boot jdk to JDK 18

[vidmik]

With the JDK 18 GA out it's time to bump the minimum boot JDK version for mainline/JDK 19.

Testing: tier1-5, GHA builds

---

Progress

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

Issue

• JDK-8277517: Bump minimum boot jdk to JDK 18

Reviewers

• Joe Darcy (@jddarcy - Reviewer) ⚠️ Review applies to 11f2d56
• Erik Joelsson (@erikj79 - Reviewer) ⚠️ Review applies to 11f2d56
• Iris Clark (@irisclark - Reviewer) ⚠️ Review applies to 11f2d56

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk pull/8102/head:pull/8102
$ git checkout pull/8102

Update a local copy of the PR:
$ git checkout pull/8102
$ git pull https://git.openjdk.java.net/jdk pull/8102/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 8102

View PR using the GUI difftool:
$ git pr show -t 8102

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk/pull/8102.diff

[bridgekeeper]

👋 Welcome back mikael! 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]

@vidmik The following label will be automatically applied to this pull request:

• build

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[mlbridge]

Webrevs

• 01: Full - Incremental (1672ca6a)
• 00: Full (11f2d565)

[openjdk]

@vidmik 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:

8277517: Bump minimum boot jdk to JDK 18

Reviewed-by: darcy, erikj, iris

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been no new commits pushed to the master branch. If another commit should be pushed before you perform the /integrate command, your PR will be automatically rebased. If you prefer to avoid any potential automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[vidmik]

Adding a random comment here in the hopes that it will generate an email and give everybody a chance to react to this change.

[vidmik]

/integrate

[openjdk]

Going to push as commit 46ce2ef.
Since your change was applied there have been 2 commits pushed to the master branch:

• 77388ea: 8284368: Remove finalizer method in jdk.crypto.cryptoki
• 8e4fab0: 8284303: runtime/Thread/AsyncExceptionTest.java timed out

Your commit was automatically rebased without conflicts.

[openjdk]

@vidmik Pushed as commit 46ce2ef.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.