fix!: let Renovate handle major-only Java pins, default to JDK 25 by tehw0lf · Pull Request #173 · tehw0lf/workflows

tehw0lf · 2026-10-05T16:22:43Z

Problem

The Dependency Dashboard (#171) lists renovate/java-21.x under Errored with Error updating branch: update failure.

The java-version datasource returns full versions (21.0.12+101.0.LTS), the pins only carry a major ("21"). Renovate treated that as a patch update and tried to write the full version into the pin.

Changes

renovate.json – extractVersionTemplate: "^(?<version>\\d+)" on the Java manager, so datasource versions are compared as majors only.
renovate.json – Java majors use dependencyDashboardApproval: true instead of enabled: false: no unsolicited PR, but a checkbox in the dashboard.
java_version default 21 → 25 in build-test-publish.yml, test-and-build.yml, publish-maven-central.yml.
README input table and CLAUDE.md updated.

Breaking

Callers that rely on the java_version default now get JDK 25, which needs Gradle 9.1+. Pass java_version: "21" to stay. yaft-java and yaft-java-playground already pass "25" and are unaffected.

Deliberately not changed

release-android-apk.yml stays on JDK 24: numveil builds its APK with Gradle 8.14.3 / AGP 8.13.0, and Gradle 8.x does not run on JDK 25. That job only runs on push to main, so a break would not show up in a PR. Once numveil is on Gradle 9.1+, tick the Java 25 checkbox in the dashboard.

Verification

renovate --platform=local --dry-run=lookup before: 21 → 21.0.12+101.0.LTS (patch) for the 21 pins. After: no update for the 25 defaults, 24 → 25 (major) for the android pin.
renovate-config-validator renovate.json passes.
actionlint .github/workflows/*.yml passes.
Not run: yamllint (not installed locally). The dashboard entry itself can only clear on the next hosted Renovate run after merge.

https://claude.ai/code/session_01LGumnS3riBpdeNk9gwz5k7

Summary by CodeRabbit

Updates
- Java 25 is now the default for builds and publishing when no Java version is specified.
- Java major-version updates now require approval through the Dependency Dashboard.

The java-version datasource returns full versions (21.0.12+101.0.LTS) while the pins only carry a major ("21"). Renovate read that as a patch update, tried to write the full version into the pin and the branch renovate/java-21.x failed with "update failure" on every run. extractVersionTemplate now cuts the datasource versions down to the major, so the only update Renovate sees for a Java pin is the next major. Those no longer stay invisible behind enabled:false; they wait in the Dependency Dashboard for approval. BREAKING CHANGE: the java_version default moves from 21 to 25. Callers that rely on the default need Gradle 9.1+ or must pass java_version: "21". The android pin stays on 24 because Gradle 8.x does not run on JDK 25. Claude-Session: https://claude.ai/code/session_01LGumnS3riBpdeNk9gwz5k7

coderabbitai · 2026-10-05T16:23:12Z

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README.md

📝 Walkthrough

Walkthrough

Three reusable workflows now default to Java 25. The README and CLAUDE.md document the updated default. Renovate extracts Java major versions and requires Dependency Dashboard approval for major updates.

Changes

Java version defaults and update policy

Layer / File(s)	Summary
Set and document Java 25 defaults `.github/workflows/build-test-publish.yml`, `.github/workflows/publish-maven-central.yml`, `.github/workflows/test-and-build.yml`, `README.md`, `CLAUDE.md`	The three workflow `java_version` inputs now default to `25`. The README and CLAUDE.md update the documented Java defaults for builds.
Update Renovate version extraction and approval rules `renovate.json`, `CLAUDE.md`	Renovate extracts the numeric Java version and requires Dependency Dashboard approval for major updates. CLAUDE.md adds the Maven Central workflow to its Java pin guidance, retains Android Java 24, and documents the Gradle 9.1+ requirement for changing that pin.

Priority: ➖ Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Merge Risk: 🔵 Low · up to 542e9

Callers with older Gradle wrappers may need to select Java 21 or upgrade Gradle. Add that guidance to the README; the remaining risk is bounded and does not otherwise prevent merging.

🚥 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 summarizes both main changes: enabling Renovate to handle major-only Java pins and changing the default to JDK 25.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
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.

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Inline comments:
Review comments at @README.md:
- Line 108: Update the java_version entry in the README table to document that
Java 25 requires Gradle 9.1.0 or newer, and that callers with older wrappers may
set java_version to 21 if supported.

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📒 Files selected for processing (6)

.github/workflows/build-test-publish.yml
.github/workflows/publish-maven-central.yml
.github/workflows/test-and-build.yml
CLAUDE.md
README.md
renovate.json

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Claude-Session: https://claude.ai/code/session_01LGumnS3riBpdeNk9gwz5k7

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Comment thread README.md Outdated

docs: note the Gradle 9.1+ requirement next to the java_version default

ee7c686

Claude-Session: https://claude.ai/code/session_01LGumnS3riBpdeNk9gwz5k7

tehw0lf merged commit ba992ef into main Oct 5, 2026
3 checks passed

tehw0lf deleted the fix/renovate-java-major-pin branch October 5, 2026 16:36

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fix!: let Renovate handle major-only Java pins, default to JDK 25 - #173

fix!: let Renovate handle major-only Java pins, default to JDK 25#173
tehw0lf merged 2 commits into
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fix/renovate-java-major-pin

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tehw0lf commented Oct 5, 2026 •

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