Add OpenJDK distribution by Copilot · Pull Request #1147 · actions/setup-java · GitHub

Description:
Adds distribution: oracle-openjdk for the GPLv2+CE OpenJDK builds created and hosted by Oracle at jdk.java.net.

Discovers current GA, early-access, and archived releases from jdk.java.net.
Supports SemVer ranges, exact builds, four-field versions, and legacy archive layouts.
Supports Linux, macOS, and Windows on x64 and AArch64.
Supports JDK packages; JRE and JavaFX package variants are not published by this distribution.
Documents that Oracle archives these builds after a limited number of releases and stops providing security updates. Users must then move to Oracle JDK or another maintained vendor to continue receiving security patches.
Registers the distribution, adds platform-independent tests, and updates the bundled action.

Stable release:

- uses: actions/setup-java@v6
  with:
    distribution: 'oracle-openjdk'
    java-version: '26'

Early-access release:

- uses: actions/setup-java@v6
  with:
    distribution: 'oracle-openjdk'
    java-version: '27-ea'

Using 27 without the -ea suffix selects a stable (GA) release.

Related issue:
OpenJDK JDK distribution feature request.

Download URL:
https://jdk.java.net/

License:
https://openjdk.org/legal/gplv2+ce.html

Check list:

Mark if documentation changes are required.
Mark if tests were added or updated to cover the changes.
Mark if new distribution is being added.

Fixes Add the OpenJDK JDK reference implementation #1141

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 2c93ae0c-bbf5-40f5-bf6e-40168d0e267f

Pull request overview

This PR adds support for installing Oracle-hosted OpenJDK builds from https://jdk.java.net/ via a new distribution: oracle-openjdk, including GA, early-access, and archived release discovery, plus documentation and test coverage.

Changes:

Adds a new OpenJdkDistribution installer that scrapes jdk.java.net to resolve and download matching JDK archives (GA/EA/archive), supporting SemVer ranges and legacy archive layouts.
Registers oracle-openjdk in the distribution factory and updates user docs (README + advanced usage) to document behavior and security-update caveats.
Adds Jest tests covering GA/EA resolution, archived releases, legacy archive headings, and platform/arch handling; updates the bundled dist/setup/index.js.

Show a summary per file

File	Description
src/distributions/openjdk/installer.ts	Implements OpenJDK release discovery/parsing and download/caching for oracle-openjdk.
src/distributions/distribution-factory.ts	Registers oracle-openjdk and wires it to OpenJdkDistribution.
README.md	Adds oracle-openjdk to the supported distributions table and documents archival/security caveat.
docs/advanced-usage.md	Documents how to use oracle-openjdk (including -ea) and updates guidance for manual JDK installs.
tests/distributors/openjdk-installer.test.ts	Adds unit tests validating version resolution and parsing across GA/EA/archive formats.
dist/setup/index.js	Updates the compiled/bundled action output to include the new distribution.

Review details

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Files reviewed: 5/6 changed files
Comments generated: 1
Review effort level: Low

Initial plan

d9cbbc4

Copilot AI assigned Copilot and brunoborges Jul 28, 2026

Copilot started work on behalf of brunoborges July 28, 2026 02:03 View session

Copilot AI linked an issue Jul 28, 2026 that may be closed by this pull request

Add the OpenJDK JDK reference implementation #1141

Closed

Copilot AI added 4 commits July 28, 2026 02:11

Add OpenJDK distribution

a7c4828

Support archived OpenJDK release formats

2c4a2dd

Handle legacy OpenJDK URL layout

cb48866

Resolve legacy OpenJDK build metadata

333d9ce

Copilot AI changed the title [WIP] Add the OpenJDK JDK reference implementation Add OpenJDK distribution Jul 28, 2026

Copilot finished work on behalf of brunoborges July 28, 2026 02:52

Copilot AI requested a review from brunoborges July 28, 2026 02:52

brunoborges added 5 commits July 28, 2026 15:20

Merge branch 'main' into copilot/add-openjdk-jdk-distribution

97050e9

Rename OpenJDK distribution to oracle-openjdk

25b4db5

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 2c93ae0c-bbf5-40f5-bf6e-40168d0e267f

Make OpenJDK tests platform independent

3f1ca98

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 2c93ae0c-bbf5-40f5-bf6e-40168d0e267f

Document Oracle OpenJDK early access builds

8bad58b

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 2c93ae0c-bbf5-40f5-bf6e-40168d0e267f

Clarify Oracle OpenJDK security note

c9ff0d5

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 2c93ae0c-bbf5-40f5-bf6e-40168d0e267f

brunoborges marked this pull request as ready for review July 28, 2026 19:54

brunoborges requested a review from a team as a code owner July 28, 2026 19:54

Copilot AI review requested due to automatic review settings July 28, 2026 19:54

Copilot started reviewing on behalf of brunoborges July 28, 2026 19:55 View session

brunoborges merged commit 0b0bd25 into main Jul 28, 2026
441 checks passed

brunoborges deleted the copilot/add-openjdk-jdk-distribution branch July 28, 2026 19:55

Copilot AI reviewed Jul 28, 2026

View reviewed changes

Comment thread src/distributions/openjdk/installer.ts

Comment on lines +109 to +112

private async fetchPage(url: string): Promise<string> {

const response = await this.http.get(url);

return response.readBody();

}

Add OpenJDK distribution by Copilot · Pull Request #1147 · actions/setup-java · GitHub

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Add OpenJDK distribution - #1147

Add OpenJDK distribution#1147
brunoborges merged 10 commits into
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copilot/add-openjdk-jdk-distribution

Copilot AI commented Jul 28, 2026 •
edited by brunoborges
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+                private async fetchPage(url: string): Promise<string> {
+                  const response = await this.http.get(url);
+                  return response.readBody();
+                }

Add OpenJDK distribution by Copilot · Pull Request #1147 · actions/setup-java · GitHub

Uh oh!

Add OpenJDK distribution - #1147

Add OpenJDK distribution#1147brunoborges merged 10 commits intomainactions/setup-java:mainfrom copilot/add-openjdk-jdk-distributionactions/setup-java:copilot/add-openjdk-jdk-distributionCopy head branch name to clipboard

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Pull request overview

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Add OpenJDK distribution#1147
brunoborges merged 10 commits into
mainfrom
copilot/add-openjdk-jdk-distribution

Copilot AI commented Jul 28, 2026 •
edited by brunoborges
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