Support Temurin JDKs with JMOD files (#1149)

* Initial plan

* Add Temurin JMOD installation support

* Rebuild action bundles

* Use java-package for Temurin JMODs

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: e7d8c581-2d14-4ccc-aeca-afc0f3b0c2bc

* Fix Temurin JMOD test paths on Windows

Use platform-aware path construction for the JMOD copy and cache assertions so the Windows test expects backslash-normalized paths.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Bruno Borges <brborges@microsoft.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: e7d8c581-2d14-4ccc-aeca-afc0f3b0c2bc

__tests__/distributors/distribution-factory.test.ts

@@ -0,0 +1,16 @@
+import {getJavaDistribution} from '../../src/distributions/distribution-factory.js';
+
+describe('getJavaDistribution', () => {
+  it("rejects java-package 'jdk+jmods' for non-Temurin distributions", () => {
+    expect(() =>
+      getJavaDistribution('zulu', {
+        version: '25',
+        architecture: 'x64',
+        packageType: 'jdk+jmods',
+        checkLatest: false
+      })
+    ).toThrow(
+      "java-package 'jdk+jmods' is only supported for distribution 'temurin'."
+    );
+  });
+});

__tests__/distributors/temurin-installer.test.ts

@@ -13,6 +13,7 @@ import type {TemurinImplementation as TemurinImplementationType} from '../../src
 import {HttpClient} from '@actions/http-client';
 import fs from 'fs';
 import os from 'os';
+import path from 'path';
 
 import manifestData from '../data/temurin.json' with {type: 'json'};
 
@@ -119,6 +120,16 @@ describe('getAvailableVersions', () => {
       TemurinImplementation.Hotspot,
       'os=mac&architecture=x64&image_type=jdk&release_type=ga&jvm_impl=hotspot&page_size=20&page=0'
     ],
+    [
+      {
+        version: '25',
+        architecture: 'x64',
+        packageType: 'jdk+jmods',
+        checkLatest: false
+      },
+      TemurinImplementation.Hotspot,
+      'os=mac&architecture=x64&image_type=jdk&release_type=ga&jvm_impl=hotspot&page_size=20&page=0'
+    ],
     [
       {
         version: '16',
@@ -169,6 +180,27 @@ describe('getAvailableVersions', () => {
     }
   );
 
+  it('requests the JMOD image type', async () => {
+    const distribution = new TemurinDistribution(
+      {
+        version: '25',
+        architecture: 'x64',
+        packageType: 'jdk+jmods',
+        checkLatest: false
+      },
+      TemurinImplementation.Hotspot
+    );
+    distribution['getPlatformOption'] = () => 'linux';
+
+    await distribution['getAvailableVersions']('jmods');
+
+    expect(spyHttpClient).toHaveBeenCalledWith(
+      expect.stringContaining(
+        'os=linux&architecture=x64&image_type=jmods&release_type=ga'
+      )
+    );
+  });
+
   it('load available versions', async () => {
     const nextPageUrl =
       'https://api.adoptium.net/v3/assets/version/%5B1.0,100.0%5D?page=1&page_size=20';
@@ -229,7 +261,12 @@ describe('getAvailableVersions', () => {
 
   it.each([
     [TemurinImplementation.Hotspot, 'jdk', 'Java_Temurin-Hotspot_jdk'],
-    [TemurinImplementation.Hotspot, 'jre', 'Java_Temurin-Hotspot_jre']
+    [TemurinImplementation.Hotspot, 'jre', 'Java_Temurin-Hotspot_jre'],
+    [
+      TemurinImplementation.Hotspot,
+      'jdk+jmods',
+      'Java_Temurin-Hotspot_jdk+jmods'
+    ]
   ])(
     'find right toolchain folder',
     (
@@ -386,6 +423,7 @@ describe('downloadTool', () => {
   let spyCacheDir: any;
   let spyReadDirSync: any;
   let spyRenameWinArchive: any;
+  let spyCopySync: any;
 
   beforeEach(() => {
     spyDownloadTool = tc.downloadTool as jest.Mock;
@@ -400,6 +438,8 @@ describe('downloadTool', () => {
     spyReadDirSync.mockReturnValue(['jdk-17'] as any);
     spyRenameWinArchive = util.renameWinArchive as jest.Mock;
     spyRenameWinArchive.mockReturnValue('/tmp/jdk.tar.gz.zip');
+    spyCopySync = jest.spyOn(fs, 'cpSync');
+    spyCopySync.mockImplementation(() => undefined);
   });
 
   afterEach(() => {
@@ -433,6 +473,60 @@ describe('downloadTool', () => {
     );
   });
 
+  it('downloads and adds matching JMODs to the JDK', async () => {
+    spyDownloadTool
+      .mockResolvedValueOnce('/tmp/jdk.tar.gz')
+      .mockResolvedValueOnce('/tmp/jmods.tar.gz');
+    spyExtractJdkFile
+      .mockResolvedValueOnce('/tmp/extracted')
+      .mockResolvedValueOnce('/tmp/extracted-jmods');
+    spyReadDirSync
+      .mockReturnValueOnce(['jdk-25'] as any)
+      .mockReturnValueOnce(['jdk-25-jmods'] as any);
+    jest.spyOn(fs, 'existsSync').mockReturnValue(false);
+
+    const distribution = new TemurinDistribution(
+      {
+        version: '25',
+        architecture: 'x64',
+        packageType: 'jdk+jmods',
+        checkLatest: false
+      },
+      TemurinImplementation.Hotspot
+    );
+    distribution['resolvePackage'] = jest.fn().mockResolvedValue({
+      version: '25.0.3+9',
+      url: 'https://example.com/jmods.tar.gz'
+    });
+
+    await distribution['downloadTool']({
+      version: '25.0.3+9',
+      url: 'https://example.com/jdk.tar.gz'
+    });
+
+    expect(distribution['resolvePackage']).toHaveBeenCalledWith(
+      '25.0.3+9',
+      'jmods'
+    );
+    expect(spyDownloadTool).toHaveBeenNthCalledWith(
+      2,
+      'https://example.com/jmods.tar.gz'
+    );
+    expect(spyCopySync).toHaveBeenCalledWith(
+      path.join('/tmp/extracted-jmods', 'jdk-25-jmods'),
+      process.platform === 'darwin'
+        ? path.join('/tmp/extracted', 'jdk-25', 'Contents', 'Home', 'jmods')
+        : path.join('/tmp/extracted', 'jdk-25', 'jmods'),
+      {recursive: true}
+    );
+    expect(spyCacheDir).toHaveBeenCalledWith(
+      path.join('/tmp/extracted', 'jdk-25'),
+      'Java_Temurin-Hotspot_jdk+jmods',
+      '25.0.3-9',
+      'x64'
+    );
+  });
+
   it('fails when signature is missing and verification is enabled', async () => {
     const distribution = new TemurinDistribution(
       {