fix(xtest): Adds back java-sdk mlkem feature

[dmihalcik-virtru]

Reverts #540

Summary by CodeRabbit

• Bug Fixes
  • Updated feature detection to recognize support for a new ML-KEM encryption mechanism.
  • Improved the support check to validate encryption help output more reliably and report support status through the command’s exit code.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 49fa2f99-fc2b-4019-a89b-6dca37f7f22d

📥 Commits

Reviewing files that changed from the base of the PR and between ff0dd58 and 16cd0eb.

📒 Files selected for processing (1)

• xtest/sdk/java/cli.sh

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📝 Walkthrough

Walkthrough

A new mechanism-mlkem case was added to the supports feature dispatch in the Java SDK CLI test script, which checks for mlkem:768 support by grepping the output of cmdline.jar help encrypt and returns the grep command's exit status.

Changes

ML-KEM Support Detection

Layer / File(s)	Summary
Add mechanism-mlkem support check xtest/sdk/java/cli.sh	Adds a new branch under supports that greps cmdline.jar help encrypt output for mlkem:768 (case-insensitive) and exits with the grep status.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Possibly related PRs

• opentdf/tests#531: Modifies the same supports dispatch in cli.sh to add ML-KEM feature recognition via a similar cmdline.jar help encrypt check.
• opentdf/tests#538: Adds the identical mechanism-mlkem dispatch branch checking for mlkem:768 in cli.sh.
• opentdf/tests#540: Removes the same mechanism-mlkem dispatch logic that this PR adds to cli.sh.

Suggested reviewers: sujankota

Poem

A hop, a grep, a tiny check,
mlkem:768 upon the deck,
Encrypt help text now bears the clue,
Support confirmed with status true,
This rabbit thumps in code review! 🐇✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main change: restoring Java SDK MLKEM feature support in xtest.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch revert-540-disable-pure-mlkem-java-sdk

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[gemini-code-assist]

Code Review

This pull request adds support for the 'mechanism-mlkem' mechanism in the Java CLI test script (xtest/sdk/java/cli.sh) by executing the command-line tool and checking for 'mlkem:768' in the help output. There are no review comments, and I have no feedback to provide.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

X-Test Failure Report

✅ java@main-v0.19.0
server-logs-java@v0.17.1-main
❌ java@v0.17.1-main
✅ java@main-main
✅ go@main-main
✅ go@main-v0.19.0
server-logs-java@v0.17.1-v0.19.0
❌ java@v0.17.1-v0.19.0
✅ js@v0.4.0-main
✅ js@main-v0.19.0
✅ js@main-main
✅ js@v0.4.0-v0.19.0