8355779: When no "signature_algorithms_cert" extension is present we do not apply certificate scope constraints to algorithms in "signature_algorithms" extension

[jerboaa]

Clean backport of a follow-up to #830. The patch applies clean after path modification.

Testing:

• GHA (usual failures also seen elsewhere).
• jdk/test/javax/net/ssl, jdk/test/sun/net/www/protocol/https/ and jdk/test/sun/security/ssl/ with the same results as in 8349583: Add mechanism to disable signature schemes based on their TLS scope #830: Test results: passed: 270; failed: 2; error: 1 (3 known failures of SSLSocketLeak.java, PreferredKey.java and Compatibility.java)

Thoughts?

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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-8355779 needs maintainer approval

Integration blocker

 ⚠️ Dependency #830 must be integrated first

Issue

• JDK-8355779: When no "signature_algorithms_cert" extension is present we do not apply certificate scope constraints to algorithms in "signature_algorithms" extension (Bug - P2)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk8u-dev.git pull/834/head:pull/834
$ git checkout pull/834

Update a local copy of the PR:
$ git checkout pull/834
$ git pull https://git.openjdk.org/jdk8u-dev.git pull/834/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 834

View PR using the GUI difftool:
$ git pr show -t 834

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk8u-dev/pull/834.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back sgehwolf! A progress list of the required criteria for merging this PR into pr/830 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 (bc29233f)