8358129: compiler/startup/StartupOutput.java runs into out of memory on Windows after JDK-8347406

[dafedafe]

Hi all,

This pull request contains a backport of commit 534a8605 from the openjdk/jdk repository.

The commit being backported was authored by Damon Fenacci on 16 Jun 2025 and was reviewed by Tobias Hartmann and Emanuel Peter.

Thanks!

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8358129: compiler/startup/StartupOutput.java runs into out of memory on Windows after JDK-8347406 (Bug - P4)

Reviewers

• Aleksey Shipilev (@shipilev - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/25821/head:pull/25821
$ git checkout pull/25821

Update a local copy of the PR:
$ git checkout pull/25821
$ git pull https://git.openjdk.org/jdk.git pull/25821/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 25821

View PR using the GUI difftool:
$ git pr show -t 25821

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/25821.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back dfenacci! A progress list of the required criteria for merging this PR into jdk25 will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@dafedafe 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:

8358129: compiler/startup/StartupOutput.java runs into out of memory on Windows after JDK-8347406

Reviewed-by: shade

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 2 new commits pushed to the jdk25 branch:

• 077ce2e: 8358764: (sc) SocketChannel.close when thread blocked in read causes connection to be reset (win)
• 2a32945: 8359327: Incorrect AVX3Threshold results into code buffer overflows on APX targets

Please see this link for an up-to-date comparison between the source branch of this pull request and the jdk25 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 jdk25 branch, type /integrate in a new comment.

[openjdk]

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

[openjdk]

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

• hotspot-compiler

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

[mlbridge]

Webrevs

• 00: Full (91ab12a6)

[dafedafe]

Thanks for the review @shipilev.

[dafedafe]

/integrate

[openjdk]

Going to push as commit cc4e971.
Since your change was applied there have been 9 commits pushed to the jdk25 branch:

• 46cfc1e: 8358334: C2/Shenandoah: incorrect execution with Unsafe
• ae71782: 8359170: Add 2 TLS and 2 CS Sectigo roots
• 7537001: 8355556: JVM crash because archived method handle intrinsics are not restored
• ... and 6 more: https://git.openjdk.org/jdk/compare/3877746eb9c5f96b60fdc14fc7be5a4a71152718...jdk25

Your commit was automatically rebased without conflicts.

[openjdk]

@dafedafe Pushed as commit cc4e971.

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