8186143: keytool -ext option doesn't accept wildcards for DNS subject alternative names

[alexeybakhtin]

I backport this for parity with Oracle 8u351
Almost clean backport except for DNSName.java:
small manual merge in the constructor caused by the absence of "JDK-8215281: Use String.isEmpty() when applicable in java.base"

All sun/security/x509 and sun/security/tools/keytool JTREG tests passed

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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-8186143 needs maintainer approval

Issue

• JDK-8186143: keytool -ext option doesn't accept wildcards for DNS subject alternative names (Bug - P2)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk8u-dev.git pull/629/head:pull/629
$ git checkout pull/629

Update a local copy of the PR:
$ git checkout pull/629
$ git pull https://git.openjdk.org/jdk8u-dev.git pull/629/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 629

View PR using the GUI difftool:
$ git pr show -t 629

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk8u-dev/pull/629.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back abakhtin! 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 (eb329769)

[alexeybakhtin]

Please review.
CI failures in CAInterop test are not related to the proposed changes