8369282: Distrust TLS server certificates anchored by Chunghwa ePKI Root CA

[rm-gh-8]

Backporting JDK-8369282: Distrust TLS server certificates anchored by Chunghwa ePKI Root CA.

This PR implements OpenJDK distrust of TLS certificates anchored by Chunghwa Telecom's ePKI Root CA (following Google/Mozilla). Certificates issued after March 17, 2026 will be rejected during TLS handshakes in SunJSSE.

For parity with Oracle JDK.

Ran related tests on linux-x64, linux-aarch64, macos-aarch64 and windows-x64:

make test TEST=test/jdk/sun/security/ssl/X509TrustManagerImpl/distrust/Chunghwa.java

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8369282 needs maintainer approval
• Change requires CSR request JDK-8374054 to be approved

Issues

• JDK-8369282: Distrust TLS server certificates anchored by Chunghwa ePKI Root CA (Enhancement - P3)
• JDK-8374054: Distrust TLS server certificates anchored by Chunghwa ePKI Root CA (CSR)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk25u-dev.git pull/255/head:pull/255
$ git checkout pull/255

Update a local copy of the PR:
$ git checkout pull/255
$ git pull https://git.openjdk.org/jdk25u-dev.git pull/255/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 255

View PR using the GUI difftool:
$ git pr show -t 255

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk25u-dev/pull/255.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

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[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.

[openjdk]

⚠️ @rm-gh-8 This change is now ready for you to apply for maintainer approval. This can be done directly in each associated issue or by using the /approval command.

[mlbridge]

Webrevs

• 00: Full (19596d16)