8370890: Start of release updates for JDK 27

[nizarbenalla]

Get JDK 27 underway.

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change requires CSR request JDK-8371062 to be approved
• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change requires CSR request JDK-8371068 to be approved
• Change requires CSR request JDK-8371071 to be approved

Issues

• JDK-8370890: Start of release updates for JDK 27 (Bug - P4)
• JDK-8370893: Add SourceVersion.RELEASE_27 (Sub-task - P4)
• JDK-8370894: Add source 27 and target 27 to javac (Sub-task - P4)
• JDK-8371071: Add SourceVersion.RELEASE_27 (CSR)
• JDK-8371062: Add source 27 and target 27 to javac (CSR)
• JDK-8371068: Start of release updates for JDK 27 (CSR)

Reviewers

• Joe Darcy (@jddarcy - Reviewer)
• Iris Clark (@irisclark - Reviewer)
• Erik Joelsson (@erikj79 - Reviewer) Review applies to 8bbe15f2
• David Holmes (@dholmes-ora - Reviewer) Review applies to 8bbe15f2
• Chen Liang (@liach - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/28130/head:pull/28130
$ git checkout pull/28130

Update a local copy of the PR:
$ git checkout pull/28130
$ git pull https://git.openjdk.org/jdk.git pull/28130/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 28130

View PR using the GUI difftool:
$ git pr show -t 28130

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/28130.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back nbenalla! 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]

@nizarbenalla 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:

8370890: Start of release updates for JDK 27
8370893: Add SourceVersion.RELEASE_27
8370894: Add source 27 and target 27 to javac

Reviewed-by: darcy, iris, liach, erikj, dholmes

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 3 new commits pushed to the master branch:

• c432150: 8372809: Test vmTestbase/nsk/jdi/ThreadReference/isSuspended/issuspended001/TestDescription.java failed: JVMTI_ERROR_THREAD_NOT_ALIVE
• af8977e: 8372951: The property jdk.httpclient.quic.maxBidiStreams should be renamed to jdk.internal
• 6d5bf9c: 8372999: Parallel: Old generation min size constraint broken

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this 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.

[openjdk]

@nizarbenalla The following labels will be automatically applied to this pull request:

• build
• compiler
• core-libs
• hotspot-runtime

When this pull request is ready to be reviewed, an "RFR" email will be sent to the corresponding mailing lists. If you would like to change these labels, use the /label pull request command.

[nizarbenalla]

/issue add 8370893
/issue add 8370894

[openjdk]

@nizarbenalla
Adding additional issue to issue list: 8370893: Add SourceVersion.RELEASE_27.

[openjdk]

@nizarbenalla
Adding additional issue to issue list: 8370894: Add source 27 and target 27 to javac.

[nizarbenalla]

This initial version of the PR intentionally excludes the creation of the new symbol files so that the fundamental code aspects of the update are easier to see.

The GA release date is accurate.
The URL of the JVMLS will be updated in the next commit to be accurate.

[mlbridge]

Webrevs

• 11: Full - Incremental (444cc1c8)
• 10: Full - Incremental (4bf97a8a)
• 09: Full - Incremental (8bbe15f2)
• 08: Full - Incremental (1237304b)
• 07: Full - Incremental (b47b9ee9)
• 06: Full - Incremental (e5214614)
• 05: Full - Incremental (78895b2b)
• 04: Full - Incremental (3d9eb308)
• 03: Full - Incremental (0652d5d3)
• 02: Full - Incremental (b51f2324)
• 01: Full - Incremental (647904b3)
• 00: Full (cc1a968e)

[jddarcy]

Looks fine so far.

[irisclark]

Expected changes for JDK 27 looking good.

[irisclark]

Anticipated GA date confirmed.

[nizarbenalla]

I had to make some changes to respect the 80 character limit we used to have.
Instead of showing a long list for the --release values in the javac help output we show the following:

  --target <release>, -target <release>
        Generate class files suitable for the specified Java SE release.
        Supported releases: 
            8, 9, 10, ..., 25, 26, 27

[erikj79]

Build changes look good.

[jddarcy]

At the top of the file where the per-release changes are all listed, please add a

"27: tbd"

entry after syncing in the changes from mainline which add an entry for JDK 26. (Also, as part of the sync please fix the "in in" stutter typo in the 26 entry.

[nizarbenalla]

Fixed in 4b14a75

[dholmes-ora]

Hotspot changes trivially fine.

[nizarbenalla]

/integrate delegate

[openjdk]

@nizarbenalla Integration of this pull request has been delegated and may be completed by any project committer using the /integrate pull request command.

[JesperIRL]

/integrate

[openjdk]

Going to push as commit c55287d.
Since your change was applied there have been 38 commits pushed to the master branch:

• 45dcc0e: 8371914: PNG defines in CFLAGS can cause compilation errors with external libpng
• 2735140: 8370939: C2: SIGSEGV in SafePointNode::verify_input when processing MH call from Compile::process_late_inline_calls_no_inline()
• 33dda88: 8351842: Windows specific issues in combination of JEP 493 and --with-external-symbols-in-bundles=public
• ... and 35 more: https://git.openjdk.org/jdk/compare/3d54a802e38f425c7035c947758c887fec48e43a...master

Your commit was automatically rebased without conflicts.

[openjdk]

@JesperIRL Pushed as commit c55287d.

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