8311546: Certificate name constraints improperly validated with leading period

[shipilev]

Backporting this due to wider customer interest in aligning JDK behavior with other SSL implementations. Both patches apply cleanly. First patch does the fix. Second patch fixes the test.

Additional testing:

• macos-aarch64-server-release, new test passes with and without the change
• macos-aarch64-server-release, sun/security/x509/
• linux-x86_64-server-release, jdk_security

---

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
• JDK-8320372 needs maintainer approval
• JDK-8311546 needs maintainer approval

Issues

• JDK-8311546: Certificate name constraints improperly validated with leading period (Bug - P3)
• JDK-8320372: test/jdk/sun/security/x509/DNSName/LeadingPeriod.java validity check failed (Bug - P2)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u-dev.git pull/1268/head:pull/1268
$ git checkout pull/1268

Update a local copy of the PR:
$ git checkout pull/1268
$ git pull https://git.openjdk.org/jdk21u-dev.git pull/1268/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 1268

View PR using the GUI difftool:
$ git pr show -t 1268

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk21u-dev/pull/1268.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back shade! 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 change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

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

[mlbridge]

Webrevs

• 00: Full (6770ee56)

[shipilev]

/issue add JDK-8320372

[openjdk]

@shipilev
Adding additional issue to issue list: 8320372: test/jdk/sun/security/x509/DNSName/LeadingPeriod.java validity check failed.

[shipilev]

Both backports are actually clean.

/clean

[openjdk]

@shipilev The /clean pull request command is not enabled for this repository

[shipilev]

@shipilev The /clean pull request command is not enabled for this repository

:( Ok, then I need some reviews, please.