Add Java linuxmusl-x64 native classifier support by Copilot · Pull Request #2715 · github/copilot-sdk

Copilot · 2026-09-17T22:07:30Z

Adds Java SDK packaging, CI coverage, and publication support for the linuxmusl-x64 native runtime.

Packaging
- Add Maven profiles for building and consuming the linuxmusl-x64 classifier.
- Validate musl host architecture and libc compatibility.
- Include the classifier in publication completeness checks.
CI
- Add Alpine-based linuxmusl-x64 coverage to the Java in-process test matrix.
- Validate local publication assembly with the musl artifact.
Publishing
- Build and attach the classifier in Maven release and snapshot workflows.
- Include the artifact in publication summaries.
Documentation
- Document musl classifier selection, build configuration, and Alpine usage.

Fixes [Java] Add support for linuxmusl-x64 #2714

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

edburns · 2026-09-17T22:26:21Z

@copilot I observe a failure in the net-new workflow for this PR:

https://github.com/github/copilot-sdk/actions/runs/35281333643/job/105404197689?pr=2715

Please examine the workflow output, resolve the issue, and push the commits to the topic branch. I will approve the workflow.

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

Copilot · 2026-09-17T22:30:27Z

@copilot I observe a failure in the net-new workflow for this PR:

https://github.com/github/copilot-sdk/actions/runs/35281333643/job/105404197689?pr=2715...

Root cause: java/sdk/pom.xml's inprocess profile always hard-coded copilot.native.classifier=linux-x64, so when the Alpine job ran with -Dcopilot.native.libc=musl, it still tried to resolve the linux-x64 runtime dependency (which is never built in that container) instead of linuxmusl-x64. Added a profile activated by copilot.native.libc=musl that overrides the classifier to linuxmusl-x64, matching how copilot-native/pom.xml already handles it. Fixed in dadd0c0.

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

Copilot

🟡 Changes recommended

Host validation currently treats any unknown non-glibc Linux host as musl, potentially producing mislabeled artifacts.

Get a fresh assessment by requesting another Copilot review.

Pull request overview

Adds Java linuxmusl-x64 packaging, testing, publication, and documentation support.

Changes:

Adds Maven profiles and native-host validation.
Adds Alpine-based CI and publication workflows.
Updates publication checks and documentation.

File summaries

File	Description
`java/sdk/pom.xml`	Selects the musl runtime dependency.
`java/copilot-native/pom.xml`	Builds and attaches the musl classifier.
`java/copilot-native/scripts/validate-native-host.mjs`	Validates musl hosts.
`java/copilot-native/scripts/validate-native-host.test.mjs`	Tests host validation.
`java/copilot-native/scripts/fetch-native.test.mjs`	Covers musl artifact staging.
`java/copilot-native/scripts/validate-native-artifact.test.mjs`	Extends publication fixtures.
`java/copilot-native/scripts/validate-local-publication.mjs`	Requires the musl classifier.
`.github/workflows/java-sdk-tests.yml`	Adds Alpine tests and publication assembly.
`.github/workflows/java-publish-snapshot.yml`	Publishes musl snapshots.
`.github/workflows/java-publish-maven.yml`	Publishes musl releases.
`java/README.md`	Documents musl usage and building.
`java/docs/adr/adr-007-native-bundling-strategy.md`	Records musl publication support.

Review details

Files reviewed: 12/12 changed files
Comments generated: 1
Review effort level: Balanced (auto)

Note

Copilot is running an experiment and ran this review at Balanced.

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+    if (host.glibcVersionRuntime) {
+      throw new Error(
+        `Native ${classifier} packaging requires musl; detected glibc ${host.glibcVersionRuntime}`,
+      );
+    }
+    return `Validated native build host: ${classifier} (musl)`;


Copilot · 2026-09-17T23:14:43Z

@edburns Unfortunately I hit an unexpected error while processing your comment. I've automatically reported this to GitHub.

You can ask me to try again later by mentioning me in a new comment.

If you want to contact GitHub about this error, please mention the following identifier so they can better serve you: afebd304-3b77-4815-b330-a6c0e3d764cb

Sorry for the inconvenience!

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

Copilot · 2026-09-17T23:19:28Z

@copilot I observe a failure in the net-new workflow for this PR:

https://github.com/github/copilot-sdk/actions/runs/35281333643/job/105404197689?pr=2715...

That run (35281333643) was on ae17a9a, before the fix. Root cause: the inprocess profile in java/sdk/pom.xml hard-coded copilot.native.classifier=linux-x64, so the Alpine job tried to resolve the linux-x64 runtime dependency instead of linuxmusl-x64. Fixed in dadd0c0 by adding a profile activated on copilot.native.libc=musl.

The latest run on a89ba27 (35282633254) is green, including Java SDK InProcess Tests (linuxmusl-x64), Java Native Publication Input (linuxmusl-x64), and Java Native Publication Assembly.

I also pushed 483adf4, which renames the Windows classifier jobs per your review comments.

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

Copilot · 2026-09-18T00:09:35Z

@copilot I observe a failure in the net-new workflow for this PR:

https://github.com/github/copilot-sdk/actions/runs/35281333643/job/105404197689?pr=2715...

The job log confirmed the missing linux-x64 runtime dependency on the Alpine runner. The in-process musl profile fix is in dadd0c0; the current branch includes it.

github-actions · 2026-09-18T00:14:00Z

SDK Consistency Review

I reviewed the changed files in this PR against the cross-SDK consistency criteria.

Files changed:

.github/workflows/java-publish-maven.yml
.github/workflows/java-publish-snapshot.yml
.github/workflows/java-sdk-tests.yml
java/README.md
java/copilot-native/pom.xml
java/copilot-native/scripts/fetch-native.test.mjs
java/copilot-native/scripts/validate-local-publication.mjs
java/copilot-native/scripts/validate-native-artifact.test.mjs
java/copilot-native/scripts/validate-native-host.mjs
java/copilot-native/scripts/validate-native-host.test.mjs
java/docs/adr/adr-007-native-bundling-strategy.md
java/sdk/pom.xml

Finding: No cross-SDK consistency issues.

This PR adds a new linuxmusl-x64 native classifier (Alpine/musl libc support) to the Java SDK's native packaging and release pipeline (CI workflows, copilot-native build scripts, Maven classifier wiring, and the corresponding ADR). It does not touch any public SDK client API surface — no changes appear in java/sdk/src/main/java/, nodejs/src/, python/copilot/, go/, dotnet/src/, or rust/src/.

This is Java-specific native-binary packaging infrastructure (analogous to platform-specific native artifact distribution), not an SDK feature/API change that needs to be mirrored in other languages. No inconsistency to flag.

Generated by SDK Consistency Review Agent for #2715 · copilot · sonnet50 · 25 AIC · ⌖ 14.8 AIC · ⊞ 8.3K · ◷

Initial plan

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Copilot AI assigned Copilot and edburns Sep 17, 2026

Copilot AI linked an issue Sep 17, 2026 that may be closed by this pull request

[Java] Add support for linuxmusl-x64 #2714

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Copilot started work on behalf of edburns September 17, 2026 22:08 View session

feat(java): add linuxmusl-x64 native classifier

ae17a9a

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

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Copilot started work on behalf of edburns September 17, 2026 22:27 View session

fix(java): activate linuxmusl-x64 classifier for sdk inprocess profile

dadd0c0

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

Copilot finished work on behalf of edburns September 17, 2026 22:30

Copilot AI requested a review from edburns September 17, 2026 22:30

fix(java): exercise musl classifier in SDK tests

a89ba27

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Add support for linuxmusl-x64 in packaging and tests~~ Add Java linuxmusl-x64 native classifier support Sep 17, 2026

Copilot finished work on behalf of edburns September 17, 2026 22:36

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edburns requested a balanced review from Copilot September 17, 2026 23:11

Copilot started reviewing on behalf of edburns September 17, 2026 23:12 View session

edburns reviewed Sep 17, 2026

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edburns reviewed Sep 17, 2026

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Copilot AI requested a review from edburns September 17, 2026 23:14

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Copilot started work on behalf of edburns September 17, 2026 23:15 View session

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ci(java): rename windows classifier jobs to build-windows-x64-classifier

483adf4

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

Copilot finished work on behalf of edburns September 17, 2026 23:19

Copilot AI requested a review from edburns September 17, 2026 23:19

Copilot started work on behalf of edburns September 17, 2026 23:20 View session

Copilot finished work on behalf of edburns September 17, 2026 23:22

Copilot started work on behalf of edburns September 18, 2026 00:06 View session

ci(java): clarify native publication job IDs

171cda9

Co-authored-by: edburns <75821+edburns@users.noreply.github.com>

Copilot finished work on behalf of edburns September 18, 2026 00:09

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