8268361: Fix the infinite loop in next_line

[wkia]

Backport of JDK-8268361 to 15u.
It needs to be ported due to similar problems as 17u has.
Fix applies cleanly. Tests tier1 passed after the fix without regression.

---

Progress

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

Issue

• JDK-8268361: Fix the infinite loop in next_line

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk15u-dev pull/260/head:pull/260
$ git checkout pull/260

Update a local copy of the PR:
$ git checkout pull/260
$ git pull https://git.openjdk.org/jdk15u-dev pull/260/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 260

View PR using the GUI difftool:
$ git pr show -t 260

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk15u-dev/pull/260.diff

[bridgekeeper]

Hi @wkia, welcome to this OpenJDK project and thanks for contributing!

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[openjdk]

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

[wkia]

/covered

[bridgekeeper]

Thank you! Please allow for a few business days to verify that your employer has signed the OCA. Also, please note that pull requests that are pending an OCA check will not usually be evaluated, so your patience is appreciated!

[robilad]

Hi, please send an e-Mail to Dalibor.topic@oracle.com so that I can verify your account.

[openjdk]

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

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

8268361: Fix the infinite loop in next_line

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 4 new commits pushed to the master branch:

• 899d5f8: 8287463: JFR: Disable TestDevNull.java on Windows
• 68f09d4: 8282947: JFR: Dump on shutdown live-locks in some conditions
• e7fdc3a: 8283441: C2: segmentation fault in ciMethodBlocks::make_block_at(int)
• 03bf615: 7131823: bug in GIFImageReader

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.

As you do not have Committer status in this project an existing Committer must agree to sponsor your change.

➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[mlbridge]

Webrevs

• 00: Full (b989e1dd)

[wkia]

/integrate

[openjdk]

@wkia
Your change (at version b989e1d) is now ready to be sponsored by a Committer.

[yan-too]

/sponsor

[openjdk]

Going to push as commit 8392a31.
Since your change was applied there have been 4 commits pushed to the master branch:

• 899d5f8: 8287463: JFR: Disable TestDevNull.java on Windows
• 68f09d4: 8282947: JFR: Dump on shutdown live-locks in some conditions
• e7fdc3a: 8283441: C2: segmentation fault in ciMethodBlocks::make_block_at(int)
• 03bf615: 7131823: bug in GIFImageReader

Your commit was automatically rebased without conflicts.

[openjdk]

@yan-too @wkia Pushed as commit 8392a31.

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