Merge 491467dc7f into b24df5bba5

* Make the Adoptopenjdk package type look at the Temurin repo first for latest assets

* Address Copilot code review comments

- Use strict equality (===, !==) instead of loose equality (==, !=) for all comparisons
- Properly handle caught errors with instanceof type narrowing before accessing properties
- Only fall back to legacy AdoptOpenJDK for specific version-not-found errors
- Rethrow unexpected errors to avoid masking real issues (network failures, rate limits, etc.)
- Fix error message check to match actual error text ('No matching version found')
- Remove unnecessary undefined check since method return type is never undefined
- Add @internal JSDoc annotation to TemurinDistribution.findPackageForDownload()
- Update tests to properly mock Temurin lookup failures for fallback behavior testing
- Rebuild dist files

* Always fall back to legacy AdoptOpenJDK but log all Temurin failures

- Change error handling to gracefully fall back for all errors, not just version-not-found
- Log version-not-found errors as notices with migration guidance
- Log other Temurin failures as debug messages for troubleshooting
- Improves resilience: users always get a result even if Temurin API has issues
- Maintains visibility: failures are still logged for debugging

* Fixes from review

* Fixes from review

* Fixes from review

* Regenerate dist

.github/workflows/e2e-versions.yml

@@ -86,6 +86,32 @@ jobs:
         run: bash __tests__/verify-java.sh "${{ matrix.version }}" "${{ steps.setup-java.outputs.path }}"
         shell: bash
 
+  setup-java-alpine-linux:
+    name: ${{ matrix.distribution }} ${{ matrix.version }} (jdk-x64) - alpine-linux - ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    container:
+      image: alpine:latest
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        distribution: ['temurin', 'sapmachine']
+        version: ['21', '17']
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+      - name: Install bash
+        run: apk add --no-cache bash
+      - name: setup-java
+        uses: ./
+        id: setup-java
+        with:
+          java-version: ${{ matrix.version }}
+          distribution: ${{ matrix.distribution }}
+      - name: Verify Java
+        run: bash __tests__/verify-java.sh "${{ matrix.version }}" "${{ steps.setup-java.outputs.path }}"
+        shell: bash
+
   setup-java-major-minor-versions:
     name: ${{ matrix.distribution }} ${{ matrix.version }} (jdk-x64) - ${{ matrix.os }}
     needs: setup-java-major-versions

.licensed.yml

@@ -13,4 +13,5 @@ allowed:
 
 reviewed:
   npm:
-    - "@actions/http-client" # MIT (license text present), but detected as "other"
+    - "@actions/http-client" # MIT (license text present), but detected as "other"
+    - "argparse" # Python Software Foundation License (PSF), but detected as "other"

README.md

@@ -55,7 +55,13 @@ For information about the latest releases, recent updates, and newly supported d
   #### Maven options
   The action has a bunch of inputs to generate maven's [settings.xml](https://maven.apache.org/settings.html) on the fly and pass the values to Apache Maven GPG Plugin as well as Apache Maven Toolchains. See [advanced usage](docs/advanced-usage.md) for more.
 
-  - `overwrite-settings`: By default action overwrites the settings.xml. In order to skip generation of file if it exists, set this to `false`.
+  - `overwrite-settings`: By default action overwrites the settings.xml and adds a toolchain entry to toolchains.xml. In order to skip generation of settings.xml and skip adding a toolchain entry to toolchains.xml if the according file exists, set this to `false`.
+
+  - `update-env-javahome`: By default action updates `env.JAVA_HOME` with the path of java installed. In order to skip update of JAVA_HOME, set this to `false`. The creation of the env variable JAVA_HOME_{{ MAJOR_VERSION }}_{{ ARCHITECTURE }} is NOT affected by this item. That will be created for any setup.
+
+  - `update-env-path`: By default action adds `<java_install_dir>/bin` to `env.PATH`. In order to skip this, set this to `false`.
+
+  - `update-toolchains-only`: If set to true, then `overwrite-settings`, `update-env-javahome` and `update-env-path` are propagated to `false` if the specific one is not explicitly configured to `true`. Only a toolchain entry will be added to toolchains.xml. Default is `false`.
 
   - `server-id`: ID of the distributionManagement repository in the pom.xml file. Default is `github`.
 
@@ -129,6 +135,10 @@ Currently, the following distributions are supported:
 
 **NOTE:** To comply with the GraalVM Free Terms and Conditions (GFTC) license, it is recommended to use GraalVM JDK 17 version 17.0.12, as this is the only version of GraalVM JDK 17 available under the GFTC license. Additionally, it is encouraged to consider upgrading to GraalVM JDK 21, which offers the latest features and improvements.
 
+**NOTE:** Oracle JDK 17 licensing varies by patch level. As shown on the [JDK 17 Archive](https://www.oracle.com/java/technologies/javase/jdk17-archive-downloads.html) (versions up to 17.0.12 are under the [NFTC](https://www.oracle.com/downloads/licenses/no-fee-license.html) license) and the [JDK 17.0.13+ Archive](https://www.oracle.com/java/technologies/javase/jdk17-0-13-later-archive-downloads.html) (versions 17.0.13 and later are under the [OTN](https://www.oracle.com/downloads/licenses/javase-license1.html) license). To stay on the free NFTC license, use `distribution: 'oracle'` with `java-version: '17.0.12'` (or earlier) instead of the floating `'17'`. Alternatively, upgrade to Oracle JDK 21+, which remains under the NFTC license.
+
+**NOTE:** On Ubuntu runners, commands executed via `sudo` do not inherit the `JAVA_HOME` and `PATH` set by `setup-java` and will fall back to the runner image's system-default JDK.
+
 ### Caching packages dependencies
 The action has a built-in functionality for caching and restoring dependencies. It uses [toolkit/cache](https://github.com/actions/toolkit/tree/main/packages/cache) under hood for caching dependencies but requires less configuration settings. Supported package managers are gradle, maven and sbt. The format of the used cache key is `setup-java-${{ platform }}-${{ packageManager }}-${{ fileHash }}`, where the hash is based on the following files:
 
@@ -262,6 +272,8 @@ All configured Java versions are added to the PATH. The last one added to the PA
             15
 ```
 
+**NOTE:** An alternative option is to use multiple setup-java steps. In this case the behavior can be controlled more granular by making use of the input items `overwrite-settings`, `update-env-javahome`, `update-env-path` and `update-toolchains-only`.
+
 ### Using Maven Toolchains
 In the example above multiple JDKs are installed for the same job. The result after the last JDK is installed is a Maven Toolchains declaration containing references to all three JDKs. The values for `id`, `version`, and `vendor` of the individual Toolchain entries are the given input values for `distribution` and `java-version` (`vendor` being the combination of `${distribution}_${java-version}`) by default.
 

__tests__/cache.test.ts

@@ -17,6 +17,7 @@ describe('dependency cache', () => {
   let spyWarning: jest.SpyInstance<void, Parameters<typeof core.warning>>;
   let spyDebug: jest.SpyInstance<void, Parameters<typeof core.debug>>;
   let spySaveState: jest.SpyInstance<void, Parameters<typeof core.saveState>>;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     workspace = mkdtempSync(join(tmpdir(), 'setup-java-cache-'));
@@ -51,6 +52,10 @@ describe('dependency cache', () => {
 
     spySaveState = jest.spyOn(core, 'saveState');
     spySaveState.mockImplementation(() => null);
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -58,6 +63,10 @@ describe('dependency cache', () => {
     process.env['GITHUB_WORKSPACE'] = ORIGINAL_GITHUB_WORKSPACE;
     process.env['RUNNER_OS'] = ORIGINAL_RUNNER_OS;
     resetState();
+
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
   });
 
   describe('restore', () => {

__tests__/cleanup-java.test.ts

@@ -11,19 +11,32 @@ describe('cleanup', () => {
     Parameters<typeof cache.saveCache>
   >;
   let spyJobStatusSuccess: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyWarning = jest.spyOn(core, 'warning');
     spyWarning.mockImplementation(() => null);
+
     spyInfo = jest.spyOn(core, 'info');
     spyInfo.mockImplementation(() => null);
+
     spyCacheSave = jest.spyOn(cache, 'saveCache');
+
     spyJobStatusSuccess = jest.spyOn(util, 'isJobStatusSuccess');
     spyJobStatusSuccess.mockReturnValue(true);
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
+
     createStateForSuccessfulRestore();
   });
+
   afterEach(() => {
     resetState();
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
   });
 
   it('does not fail nor warn even when the save process throws a ReserveCacheError', async () => {

__tests__/distributors/adopt-installer.test.ts

@@ -4,14 +4,18 @@ import {
   AdoptDistribution,
   AdoptImplementation
 } from '../../src/distributions/adopt/installer';
+import {TemurinDistribution} from '../../src/distributions/temurin/installer';
 import {JavaInstallerOptions} from '../../src/distributions/base-models';
 
 import os from 'os';
 
 import manifestData from '../data/adopt.json';
+import * as core from '@actions/core';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
+  let spyCoreWarning: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -20,6 +24,12 @@ describe('getAvailableVersions', () => {
       headers: {},
       result: []
     });
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
+    spyCoreWarning = jest.spyOn(core, 'warning');
+    spyCoreWarning.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -130,22 +140,19 @@ describe('getAvailableVersions', () => {
   );
 
   it('load available versions', async () => {
+    const nextPageUrl =
+      'https://api.adoptopenjdk.net/v3/assets/version/%5B1.0,100.0%5D?page=1&page_size=20';
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
     spyHttpClient
       .mockReturnValueOnce({
         statusCode: 200,
-        headers: {},
+        headers: {link: `<${nextPageUrl}>; rel="next"`},
         result: manifestData as any
       })
       .mockReturnValueOnce({
         statusCode: 200,
         headers: {},
         result: manifestData as any
-      })
-      .mockReturnValueOnce({
-        statusCode: 200,
-        headers: {},
-        result: []
       });
 
     const distribution = new AdoptDistribution(
@@ -160,6 +167,34 @@ describe('getAvailableVersions', () => {
     const availableVersions = await distribution['getAvailableVersions']();
     expect(availableVersions).not.toBeNull();
     expect(availableVersions.length).toBe(manifestData.length * 2);
+    expect(spyHttpClient).toHaveBeenNthCalledWith(2, nextPageUrl);
+  });
+
+  it('stops pagination after 1000 pages as a safeguard', async () => {
+    const nextPageUrl =
+      'https://api.adoptopenjdk.net/v3/assets/version/%5B1.0,100.0%5D?page=2&page_size=20';
+    spyHttpClient.mockReturnValue({
+      statusCode: 200,
+      headers: {link: `<${nextPageUrl}>; rel="next"`},
+      result: [{version_data: {semver: '17.0.1'}, binaries: []}] as any
+    });
+
+    const distribution = new AdoptDistribution(
+      {
+        version: '11',
+        architecture: 'x64',
+        packageType: 'jdk',
+        checkLatest: false
+      },
+      AdoptImplementation.Hotspot
+    );
+
+    await distribution['getAvailableVersions']();
+
+    expect(spyHttpClient).toHaveBeenCalledTimes(1000);
+    expect(spyCoreWarning).toHaveBeenCalledWith(
+      expect.stringContaining('Reached pagination safeguard limit (1000 pages)')
+    );
   });
 
   it.each([
@@ -222,6 +257,38 @@ describe('getAvailableVersions', () => {
 });
 
 describe('findPackageForDownload', () => {
+  it('returns Temurin result and does not query Adopt API when Temurin succeeds', async () => {
+    const temurinRelease = {
+      version: '11.0.31+11',
+      url: 'https://example.test/temurin-11.tar.gz'
+    };
+    const temurinFindPackageForDownload = jest
+      .fn()
+      .mockResolvedValue(temurinRelease);
+    const temurinDistribution = {
+      findPackageForDownload: temurinFindPackageForDownload
+    } as unknown as TemurinDistribution;
+
+    const distribution = new AdoptDistribution(
+      {
+        version: '11',
+        architecture: 'x64',
+        packageType: 'jdk',
+        checkLatest: false
+      },
+      AdoptImplementation.Hotspot,
+      temurinDistribution
+    );
+    const adoptLookupSpy = jest.fn();
+    distribution['getAvailableVersions'] = adoptLookupSpy;
+
+    const resolvedVersion = await distribution['findPackageForDownload']('11');
+
+    expect(resolvedVersion).toEqual(temurinRelease);
+    expect(temurinFindPackageForDownload).toHaveBeenCalledWith('11');
+    expect(adoptLookupSpy).not.toHaveBeenCalled();
+  });
+
   it.each([
     ['9', '9.0.7+10'],
     ['15', '15.0.2+7'],
@@ -244,6 +311,11 @@ describe('findPackageForDownload', () => {
       },
       AdoptImplementation.Hotspot
     );
+    // Mock Temurin to fail so fallback to AdoptOpenJDK is tested
+    distribution['temurinDistribution']!['findPackageForDownload'] =
+      async () => {
+        throw new Error('No matching version found for SemVer');
+      };
     distribution['getAvailableVersions'] = async () => manifestData as any;
     const resolvedVersion = await distribution['findPackageForDownload'](input);
     expect(resolvedVersion.version).toBe(expected);
@@ -259,10 +331,15 @@ describe('findPackageForDownload', () => {
       },
       AdoptImplementation.Hotspot
     );
+    // Mock Temurin to fail so fallback to AdoptOpenJDK is tested
+    distribution['temurinDistribution']!['findPackageForDownload'] =
+      async () => {
+        throw new Error('No matching version found for SemVer');
+      };
     distribution['getAvailableVersions'] = async () => manifestData as any;
     await expect(
       distribution['findPackageForDownload']('9.0.8')
-    ).rejects.toThrow(/Could not find satisfied version for SemVer */);
+    ).rejects.toThrow(/No matching version found for SemVer */);
   });
 
   it('version is not found', async () => {
@@ -275,9 +352,14 @@ describe('findPackageForDownload', () => {
       },
       AdoptImplementation.Hotspot
     );
+    // Mock Temurin to fail so fallback to AdoptOpenJDK is tested
+    distribution['temurinDistribution']!['findPackageForDownload'] =
+      async () => {
+        throw new Error('No matching version found for SemVer');
+      };
     distribution['getAvailableVersions'] = async () => manifestData as any;
     await expect(distribution['findPackageForDownload']('7.x')).rejects.toThrow(
-      /Could not find satisfied version for SemVer */
+      /No matching version found for SemVer */
     );
   });
 
@@ -291,9 +373,14 @@ describe('findPackageForDownload', () => {
       },
       AdoptImplementation.Hotspot
     );
+    // Mock Temurin to fail so fallback to AdoptOpenJDK is tested
+    distribution['temurinDistribution']!['findPackageForDownload'] =
+      async () => {
+        throw new Error('No matching version found for SemVer');
+      };
     distribution['getAvailableVersions'] = async () => [];
     await expect(distribution['findPackageForDownload']('11')).rejects.toThrow(
-      /Could not find satisfied version for SemVer */
+      /No matching version found for SemVer */
     );
   });
 });

__tests__/distributors/base-installer.test.ts

@@ -38,7 +38,7 @@ class EmptyJavaBase extends JavaBase {
   ): Promise<JavaDownloadRelease> {
     const availableVersion = '11.0.9';
     if (!semver.satisfies(availableVersion, range)) {
-      throw new Error('Available version not found');
+      throw this.createVersionNotFoundError(range, [availableVersion]);
     }
 
     return {
@@ -248,6 +248,7 @@ describe('setupJava', () => {
   let spyCoreExportVariable: jest.SpyInstance;
   let spyCoreAddPath: jest.SpyInstance;
   let spyCoreSetOutput: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyGetToolcachePath = jest.spyOn(util, 'getToolcachePath');
@@ -287,6 +288,10 @@ describe('setupJava', () => {
     spyCoreSetOutput = jest.spyOn(core, 'setOutput');
     spyCoreSetOutput.mockImplementation(() => undefined);
 
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => undefined);
+
     jest.spyOn(os, 'arch').mockReturnValue('x86' as ReturnType<typeof os.arch>);
   });
 
@@ -530,19 +535,16 @@ describe('setupJava', () => {
         checkLatest: false
       }
     ]
-  ])(
-    'should throw an error for Available version not found for %s',
-    async input => {
-      mockJavaBase = new EmptyJavaBase(input);
-      await expect(mockJavaBase.setupJava()).rejects.toThrow(
-        'Available version not found'
-      );
-      expect(spyTcFindAllVersions).toHaveBeenCalled();
-      expect(spyCoreAddPath).not.toHaveBeenCalled();
-      expect(spyCoreExportVariable).not.toHaveBeenCalled();
-      expect(spyCoreSetOutput).not.toHaveBeenCalled();
-    }
-  );
+  ])('should throw an error for version not found for %s', async input => {
+    mockJavaBase = new EmptyJavaBase(input);
+    await expect(mockJavaBase.setupJava()).rejects.toThrow(
+      `No matching version found for SemVer '${input.version}'`
+    );
+    expect(spyTcFindAllVersions).toHaveBeenCalled();
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
+    expect(spyCoreSetOutput).not.toHaveBeenCalled();
+  });
 });
 
 describe('normalizeVersion', () => {
@@ -570,6 +572,97 @@ describe('normalizeVersion', () => {
   });
 });
 
+describe('createVersionNotFoundError', () => {
+  it('should include all required fields in error message without available versions', () => {
+    const mockJavaBase = new EmptyJavaBase({
+      version: '17.0.5',
+      architecture: 'x64',
+      packageType: 'jdk',
+      checkLatest: false
+    });
+
+    const error = (mockJavaBase as any).createVersionNotFoundError('17.0.5');
+
+    expect(error.message).toContain(
+      "No matching version found for SemVer '17.0.5'"
+    );
+    expect(error.message).toContain('Distribution: Empty');
+    expect(error.message).toContain('Package type: jdk');
+    expect(error.message).toContain('Architecture: x64');
+  });
+
+  it('should include available versions when provided', () => {
+    const mockJavaBase = new EmptyJavaBase({
+      version: '17.0.5',
+      architecture: 'x64',
+      packageType: 'jdk',
+      checkLatest: false
+    });
+
+    const availableVersions = ['11.0.1', '11.0.2', '17.0.1', '17.0.2'];
+    const error = (mockJavaBase as any).createVersionNotFoundError(
+      '17.0.5',
+      availableVersions
+    );
+
+    expect(error.message).toContain(
+      "No matching version found for SemVer '17.0.5'"
+    );
+    expect(error.message).toContain('Distribution: Empty');
+    expect(error.message).toContain('Package type: jdk');
+    expect(error.message).toContain('Architecture: x64');
+    expect(error.message).toContain(
+      'Available versions: 11.0.1, 11.0.2, 17.0.1, 17.0.2'
+    );
+  });
+
+  it('should truncate available versions when there are many', () => {
+    const mockJavaBase = new EmptyJavaBase({
+      version: '17.0.5',
+      architecture: 'x64',
+      packageType: 'jdk',
+      checkLatest: false
+    });
+
+    // Create 60 versions to test truncation
+    const availableVersions = Array.from({length: 60}, (_, i) => `11.0.${i}`);
+    const error = (mockJavaBase as any).createVersionNotFoundError(
+      '17.0.5',
+      availableVersions
+    );
+
+    expect(error.message).toContain('Available versions:');
+    expect(error.message).toContain('...');
+    expect(error.message).toContain('(showing first 50 of 60 versions');
+  });
+
+  it('should include additional context when provided', () => {
+    const mockJavaBase = new EmptyJavaBase({
+      version: '17.0.5',
+      architecture: 'x64',
+      packageType: 'jdk',
+      checkLatest: false
+    });
+
+    const availableVersions = ['11.0.1', '11.0.2'];
+    const additionalContext = 'Platform: linux';
+    const error = (mockJavaBase as any).createVersionNotFoundError(
+      '17.0.5',
+      availableVersions,
+      additionalContext
+    );
+
+    expect(error.message).toContain(
+      "No matching version found for SemVer '17.0.5'"
+    );
+    expect(error.message).toContain('Distribution: Empty');
+    expect(error.message).toContain('Package type: jdk');
+    expect(error.message).toContain('Architecture: x64');
+    expect(error.message).toContain('Platform: linux');
+    expect(error.message).toContain('Available versions: 11.0.1, 11.0.2');
+  });
+});
+
 describe('getToolcacheVersionName', () => {
   const DummyJavaBase = JavaBase as any;
 

__tests__/distributors/corretto-installer.test.ts

@@ -4,13 +4,14 @@ import {JavaInstallerOptions} from '../../src/distributions/base-models';
 import {CorrettoDistribution} from '../../src/distributions/corretto/installer';
 import * as util from '../../src/util';
 import os from 'os';
-import {isGeneratorFunction} from 'util/types';
+import * as core from '@actions/core';
 
 import manifestData from '../data/corretto.json';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
   let spyGetDownloadArchiveExtension: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -23,6 +24,10 @@ describe('getAvailableVersions', () => {
       util,
       'getDownloadArchiveExtension'
     );
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -198,7 +203,7 @@ describe('getAvailableVersions', () => {
 
       await expect(
         distribution['findPackageForDownload'](version)
-      ).rejects.toThrow("Could not find satisfied version for SemVer '4'");
+      ).rejects.toThrow("No matching version found for SemVer '4'");
     });
 
     it.each([

__tests__/distributors/dragonwell-installer.test.ts

@@ -1,12 +1,14 @@
 import {HttpClient} from '@actions/http-client';
 import {DragonwellDistribution} from '../../src/distributions/dragonwell/installer';
 import * as utils from '../../src/util';
+import * as core from '@actions/core';
 
 import manifestData from '../data/dragonwell.json';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
   let spyUtilGetDownloadArchiveExtension: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -21,6 +23,10 @@ describe('getAvailableVersions', () => {
       'getDownloadArchiveExtension'
     );
     spyUtilGetDownloadArchiveExtension.mockReturnValue('tar.gz');
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -232,7 +238,7 @@ describe('getAvailableVersions', () => {
         await expect(
           distribution['findPackageForDownload'](jdkVersion)
         ).rejects.toThrow(
-          `Couldn't find any satisfied version for the specified java-version: "${jdkVersion}" and architecture: "${arch}".`
+          `No matching version found for SemVer '${jdkVersion}'`
         );
       }
     );

__tests__/distributors/graalvm-installer.test.ts

@@ -42,6 +42,7 @@ beforeAll(() => {
 describe('GraalVMDistribution', () => {
   let distribution: GraalVMDistribution;
   let mockHttpClient: jest.Mocked<http.HttpClient>;
+  let spyCoreError: jest.SpyInstance;
 
   const defaultOptions: JavaInstallerOptions = {
     version: '17',
@@ -59,6 +60,10 @@ describe('GraalVMDistribution', () => {
     (distribution as any).http = mockHttpClient;
 
     (util.getDownloadArchiveExtension as jest.Mock).mockReturnValue('tar.gz');
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterAll(() => {
@@ -348,11 +353,19 @@ describe('GraalVMDistribution', () => {
         } as http.HttpClientResponse;
         mockHttpClient.head.mockResolvedValue(mockResponse);
 
+        // Verify the error is thrown with the expected message
         await expect(
           (distribution as any).findPackageForDownload('17.0.99')
-        ).rejects.toThrow(
-          'Could not find GraalVM for SemVer 17.0.99. Please check if this version is available at https://download.oracle.com/graalvm'
-        );
+        ).rejects.toThrow("No matching version found for SemVer '17.0.99'");
+        // Verify distribution info is included
+        await expect(
+          (distribution as any).findPackageForDownload('17.0.99')
+        ).rejects.toThrow('GraalVM');
+
+        // Verify the hint about checking the base URL is included
+        await expect(
+          (distribution as any).findPackageForDownload('17.0.99')
+        ).rejects.toThrow('https://www.graalvm.org/downloads/');
       });
 
       it('should throw error for unauthorized access (401)', async () => {
@@ -496,12 +509,19 @@ describe('GraalVMDistribution', () => {
 
         await expect(
           (distribution as any).findPackageForDownload('23')
-        ).rejects.toThrow("Unable to find latest version for '23-ea'");
+        ).rejects.toThrow("No matching version found for SemVer '23-ea'");
 
-        // Verify error logging
-        expect(core.error).toHaveBeenCalledWith(
-          'Available versions: 23-ea-20240716'
+        await expect(
+          (distribution as any).findPackageForDownload('23')
+        ).rejects.toThrow(
+          'Note: No EA build is marked as latest for this version.'
         );
+
+        await expect(
+          (distribution as any).findPackageForDownload('23')
+        ).rejects.toThrow('23-ea-20240716');
+
+        // Verify error logging - removed as we now use the helper method which doesn't call core.error
       });
 
       it('should throw error when no matching file for architecture in EA build', async () => {
@@ -708,11 +728,19 @@ describe('GraalVMDistribution', () => {
 
       await expect(
         (distribution as any).findEABuildDownloadUrl('23-ea')
-      ).rejects.toThrow("Unable to find latest version for '23-ea'");
+      ).rejects.toThrow("No matching version found for SemVer '23-ea'");
 
-      expect(core.error).toHaveBeenCalledWith(
-        'Available versions: 23-ea-20240716, 23-ea-20240709'
+      await expect(
+        (distribution as any).findEABuildDownloadUrl('23-ea')
+      ).rejects.toThrow(
+        'Note: No EA build is marked as latest for this version.'
       );
+
+      await expect(
+        (distribution as any).findEABuildDownloadUrl('23-ea')
+      ).rejects.toThrow('23-ea-20240716');
+
+      // Verify error logging - removed as we now use the helper method which doesn't call core.error
     });
 
     it('should throw error when no matching file for architecture', async () => {

__tests__/distributors/jetbrains-installer.test.ts

@@ -4,9 +4,11 @@ import {JetBrainsDistribution} from '../../src/distributions/jetbrains/installer
 
 import manifestData from '../data/jetbrains.json';
 import os from 'os';
+import * as core from '@actions/core';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -15,6 +17,10 @@ describe('getAvailableVersions', () => {
       headers: {},
       result: []
     });
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -98,7 +104,7 @@ describe('findPackageForDownload', () => {
     });
     distribution['getAvailableVersions'] = async () => manifestData as any;
     await expect(distribution['findPackageForDownload']('8.x')).rejects.toThrow(
-      /Could not find satisfied version for SemVer */
+      /No matching version found for SemVer */
     );
   });
 
@@ -111,7 +117,7 @@ describe('findPackageForDownload', () => {
     });
     distribution['getAvailableVersions'] = async () => [];
     await expect(distribution['findPackageForDownload']('8')).rejects.toThrow(
-      /Could not find satisfied version for SemVer */
+      /No matching version found for SemVer */
     );
   });
 });

__tests__/distributors/liberica-installer.test.ts

@@ -5,11 +5,13 @@ import {
 } from '../../src/distributions/liberica/models';
 import {HttpClient} from '@actions/http-client';
 import os from 'os';
+import * as core from '@actions/core';
 
 import manifestData from '../data/liberica.json';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -18,6 +20,10 @@ describe('getAvailableVersions', () => {
       headers: {},
       result: manifestData as LibericaVersion[]
     });
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -209,7 +215,7 @@ describe('findPackageForDownload', () => {
 
   it('should throw an error', async () => {
     await expect(distribution['findPackageForDownload']('17')).rejects.toThrow(
-      /Could not find satisfied version for semver */
+      /No matching version found for SemVer/
     );
   });
 });

__tests__/distributors/liberica-linux-installer.test.ts

@@ -5,11 +5,13 @@ import {
 } from '../../src/distributions/liberica/models';
 import {HttpClient} from '@actions/http-client';
 import os from 'os';
+import * as core from '@actions/core';
 
 import manifestData from '../data/liberica-linux.json';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -18,6 +20,10 @@ describe('getAvailableVersions', () => {
       headers: {},
       result: manifestData as LibericaVersion[]
     });
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -209,7 +215,7 @@ describe('findPackageForDownload', () => {
 
   it('should throw an error', async () => {
     await expect(distribution['findPackageForDownload']('18')).rejects.toThrow(
-      /Could not find satisfied version for semver */
+      /No matching version found for SemVer/
     );
   });
 });

__tests__/distributors/liberica-windows-installer.test.ts

@@ -5,11 +5,13 @@ import {
 } from '../../src/distributions/liberica/models';
 import {HttpClient} from '@actions/http-client';
 import os from 'os';
+import * as core from '@actions/core';
 
 import manifestData from '../data/liberica-windows.json';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -18,6 +20,9 @@ describe('getAvailableVersions', () => {
       headers: {},
       result: manifestData as LibericaVersion[]
     });
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -209,7 +214,7 @@ describe('findPackageForDownload', () => {
 
   it('should throw an error', async () => {
     await expect(distribution['findPackageForDownload']('18')).rejects.toThrow(
-      /Could not find satisfied version for semver */
+      /No matching version found for SemVer/
     );
   });
 });

__tests__/distributors/local-installer.test.ts

@@ -27,6 +27,7 @@ describe('setupJava', () => {
   let spyFsReadDir: jest.SpyInstance;
   let spyUtilsExtractJdkFile: jest.SpyInstance;
   let spyPathResolve: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
   const expectedJdkFile = 'JavaLocalJdkFile';
 
   beforeEach(() => {
@@ -93,6 +94,10 @@ describe('setupJava', () => {
     // Spy on path methods
     spyPathResolve = jest.spyOn(path, 'resolve');
     spyPathResolve.mockImplementation((path: string) => path);
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {

__tests__/distributors/microsoft-installer.test.ts

@@ -8,6 +8,7 @@ describe('findPackageForDownload', () => {
   let distribution: MicrosoftDistributions;
   let spyGetManifestFromRepo: jest.SpyInstance;
   let spyDebug: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     distribution = new MicrosoftDistributions({
@@ -26,6 +27,10 @@ describe('findPackageForDownload', () => {
 
     spyDebug = jest.spyOn(core, 'debug');
     spyDebug.mockImplementation(() => {});
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   it.each([
@@ -174,7 +179,7 @@ describe('findPackageForDownload', () => {
 
   it('should throw an error', async () => {
     await expect(distribution['findPackageForDownload']('8')).rejects.toThrow(
-      /Could not find satisfied version for SemVer */
+      /No matching version found for SemVer */
     );
   });
 });

__tests__/distributors/oracle-installer.test.ts

@@ -8,6 +8,7 @@ describe('findPackageForDownload', () => {
   let distribution: OracleDistribution;
   let spyDebug: jest.SpyInstance;
   let spyHttpClient: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     distribution = new OracleDistribution({
@@ -19,6 +20,10 @@ describe('findPackageForDownload', () => {
 
     spyDebug = jest.spyOn(core, 'debug');
     spyDebug.mockImplementation(() => {});
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   it.each([

__tests__/distributors/sapmachine-installer.test.ts

@@ -1,12 +1,14 @@
 import {HttpClient} from '@actions/http-client';
 import {SapMachineDistribution} from '../../src/distributions/sapmachine/installer';
 import * as utils from '../../src/util';
+import * as core from '@actions/core';
 
 import manifestData from '../data/sapmachine.json';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
   let spyUtilGetDownloadArchiveExtension: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -21,6 +23,10 @@ describe('getAvailableVersions', () => {
       'getDownloadArchiveExtension'
     );
     spyUtilGetDownloadArchiveExtension.mockReturnValue('tar.gz');
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -266,7 +272,7 @@ describe('getAvailableVersions', () => {
         await expect(
           distribution['findPackageForDownload'](normalizedVersion)
         ).rejects.toThrow(
-          `Couldn't find any satisfied version for the specified java-version: "${normalizedVersion}" and architecture: "${arch}".`
+          `No matching version found for SemVer '${normalizedVersion}'`
         );
       }
     );

__tests__/distributors/semeru-installer.test.ts

@@ -4,9 +4,12 @@ import {JavaInstallerOptions} from '../../src/distributions/base-models';
 import {SemeruDistribution} from '../../src/distributions/semeru/installer';
 
 import manifestData from '../data/semeru.json';
+import * as core from '@actions/core';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
+  let spyCoreWarning: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -15,6 +18,11 @@ describe('getAvailableVersions', () => {
       headers: {},
       result: []
     });
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
+    spyCoreWarning = jest.spyOn(core, 'warning');
+    spyCoreWarning.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -77,22 +85,19 @@ describe('getAvailableVersions', () => {
   );
 
   it('load available versions', async () => {
+    const nextPageUrl =
+      'https://api.adoptopenjdk.net/v3/assets/version/%5B1.0,100.0%5D?page=1&page_size=20';
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
     spyHttpClient
       .mockReturnValueOnce({
         statusCode: 200,
-        headers: {},
+        headers: {link: `<${nextPageUrl}>; rel="next"`},
         result: manifestData as any
       })
       .mockReturnValueOnce({
         statusCode: 200,
         headers: {},
         result: manifestData as any
-      })
-      .mockReturnValueOnce({
-        statusCode: 200,
-        headers: {},
-        result: []
       });
 
     const distribution = new SemeruDistribution({
@@ -104,6 +109,31 @@ describe('getAvailableVersions', () => {
     const availableVersions = await distribution['getAvailableVersions']();
     expect(availableVersions).not.toBeNull();
     expect(availableVersions.length).toBe(manifestData.length * 2);
+    expect(spyHttpClient).toHaveBeenNthCalledWith(2, nextPageUrl);
+  });
+
+  it('stops pagination after 1000 pages as a safeguard', async () => {
+    const nextPageUrl =
+      'https://api.adoptopenjdk.net/v3/assets/version/%5B1.0,100.0%5D?page=2&page_size=20';
+    spyHttpClient.mockReturnValue({
+      statusCode: 200,
+      headers: {link: `<${nextPageUrl}>; rel="next"`},
+      result: [{version_data: {semver: '17.0.1'}, binaries: []}] as any
+    });
+
+    const distribution = new SemeruDistribution({
+      version: '8',
+      architecture: 'x64',
+      packageType: 'jdk',
+      checkLatest: false
+    });
+
+    await distribution['getAvailableVersions']();
+
+    expect(spyHttpClient).toHaveBeenCalledTimes(1000);
+    expect(spyCoreWarning).toHaveBeenCalledWith(
+      expect.stringContaining('Reached pagination safeguard limit (1000 pages)')
+    );
   });
 
   it.each([
@@ -152,7 +182,7 @@ describe('findPackageForDownload', () => {
     distribution['getAvailableVersions'] = async () => manifestData as any;
     await expect(
       distribution['findPackageForDownload']('9.0.8')
-    ).rejects.toThrow(/Could not find satisfied version for SemVer */);
+    ).rejects.toThrow(/No matching version found for SemVer */);
   });
 
   it('version is not found', async () => {
@@ -164,7 +194,7 @@ describe('findPackageForDownload', () => {
     });
     distribution['getAvailableVersions'] = async () => manifestData as any;
     await expect(distribution['findPackageForDownload']('7.x')).rejects.toThrow(
-      /Could not find satisfied version for SemVer */
+      /No matching version found for SemVer */
     );
   });
 
@@ -177,7 +207,7 @@ describe('findPackageForDownload', () => {
     });
     distribution['getAvailableVersions'] = async () => [];
     await expect(distribution['findPackageForDownload']('8')).rejects.toThrow(
-      /Could not find satisfied version for SemVer */
+      /No matching version found for SemVer */
     );
   });
 

__tests__/distributors/temurin-installer.test.ts

@@ -7,9 +7,12 @@ import {
 import {JavaInstallerOptions} from '../../src/distributions/base-models';
 
 import manifestData from '../data/temurin.json';
+import * as core from '@actions/core';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
+  let spyCoreWarning: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -18,6 +21,11 @@ describe('getAvailableVersions', () => {
       headers: {},
       result: []
     });
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
+    spyCoreWarning = jest.spyOn(core, 'warning');
+    spyCoreWarning.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -88,22 +96,19 @@ describe('getAvailableVersions', () => {
   );
 
   it('load available versions', async () => {
+    const nextPageUrl =
+      'https://api.adoptium.net/v3/assets/version/%5B1.0,100.0%5D?page=1&page_size=20';
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
     spyHttpClient
       .mockReturnValueOnce({
         statusCode: 200,
-        headers: {},
+        headers: {link: `<${nextPageUrl}>; rel="next"`},
         result: manifestData as any
       })
       .mockReturnValueOnce({
         statusCode: 200,
         headers: {},
         result: manifestData as any
-      })
-      .mockReturnValueOnce({
-        statusCode: 200,
-        headers: {},
-        result: []
       });
 
     const distribution = new TemurinDistribution(
@@ -118,6 +123,34 @@ describe('getAvailableVersions', () => {
     const availableVersions = await distribution['getAvailableVersions']();
     expect(availableVersions).not.toBeNull();
     expect(availableVersions.length).toBe(manifestData.length * 2);
+    expect(spyHttpClient).toHaveBeenNthCalledWith(2, nextPageUrl);
+  });
+
+  it('stops pagination after 1000 pages as a safeguard', async () => {
+    const nextPageUrl =
+      'https://api.adoptium.net/v3/assets/version/%5B1.0,100.0%5D?page=2&page_size=20';
+    spyHttpClient.mockReturnValue({
+      statusCode: 200,
+      headers: {link: `<${nextPageUrl}>; rel="next"`},
+      result: [{version_data: {semver: '17.0.1'}, binaries: []}] as any
+    });
+
+    const distribution = new TemurinDistribution(
+      {
+        version: '8',
+        architecture: 'x64',
+        packageType: 'jdk',
+        checkLatest: false
+      },
+      TemurinImplementation.Hotspot
+    );
+
+    await distribution['getAvailableVersions']();
+
+    expect(spyHttpClient).toHaveBeenCalledTimes(1000);
+    expect(spyCoreWarning).toHaveBeenCalledWith(
+      expect.stringContaining('Reached pagination safeguard limit (1000 pages)')
+    );
   });
 
   it.each([
@@ -213,7 +246,7 @@ describe('findPackageForDownload', () => {
     distribution['getAvailableVersions'] = async () => manifestData as any;
     await expect(
       distribution['findPackageForDownload']('9.0.8')
-    ).rejects.toThrow(/Could not find satisfied version for SemVer */);
+    ).rejects.toThrow(/No matching version found for SemVer */);
   });
 
   it('version is not found', async () => {
@@ -228,7 +261,7 @@ describe('findPackageForDownload', () => {
     );
     distribution['getAvailableVersions'] = async () => manifestData as any;
     await expect(distribution['findPackageForDownload']('7.x')).rejects.toThrow(
-      /Could not find satisfied version for SemVer */
+      /No matching version found for SemVer */
     );
   });
 
@@ -244,7 +277,7 @@ describe('findPackageForDownload', () => {
     );
     distribution['getAvailableVersions'] = async () => [];
     await expect(distribution['findPackageForDownload']('8')).rejects.toThrow(
-      /Could not find satisfied version for SemVer */
+      /No matching version found for SemVer */
     );
   });
 });

__tests__/distributors/zulu-installer.test.ts

@@ -3,12 +3,14 @@ import {ZuluDistribution} from '../../src/distributions/zulu/installer';
 import {IZuluVersions} from '../../src/distributions/zulu/models';
 import * as utils from '../../src/util';
 import os from 'os';
+import * as core from '@actions/core';
 
 import manifestData from '../data/zulu-releases-default.json';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
   let spyUtilGetDownloadArchiveExtension: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -23,6 +25,10 @@ describe('getAvailableVersions', () => {
       'getDownloadArchiveExtension'
     );
     spyUtilGetDownloadArchiveExtension.mockReturnValue('tar.gz');
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -225,6 +231,6 @@ describe('findPackageForDownload', () => {
     distribution['getAvailableVersions'] = async () => manifestData;
     await expect(
       distribution['findPackageForDownload'](distribution['version'])
-    ).rejects.toThrow(/Could not find satisfied version for semver */);
+    ).rejects.toThrow(/No matching version found for SemVer/);
   });
 });

__tests__/distributors/zulu-linux-installer.test.ts

@@ -4,12 +4,14 @@ import {ZuluDistribution} from '../../src/distributions/zulu/installer';
 import {IZuluVersions} from '../../src/distributions/zulu/models';
 import * as utils from '../../src/util';
 import os from 'os';
+import * as core from '@actions/core';
 
 import manifestData from '../data/zulu-linux.json';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
   let spyUtilGetDownloadArchiveExtension: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -24,6 +26,10 @@ describe('getAvailableVersions', () => {
       'getDownloadArchiveExtension'
     );
     spyUtilGetDownloadArchiveExtension.mockReturnValue('zip');
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -228,6 +234,6 @@ describe('findPackageForDownload', () => {
     distribution['getAvailableVersions'] = async () => manifestData;
     await expect(
       distribution['findPackageForDownload'](distribution['version'])
-    ).rejects.toThrow(/Could not find satisfied version for semver */);
+    ).rejects.toThrow(/No matching version found for SemVer/);
   });
 });

__tests__/distributors/zulu-windows-installer.test.ts

@@ -4,12 +4,14 @@ import {ZuluDistribution} from '../../src/distributions/zulu/installer';
 import {IZuluVersions} from '../../src/distributions/zulu/models';
 import * as utils from '../../src/util';
 import os from 'os';
+import * as core from '@actions/core';
 
 import manifestData from '../data/zulu-windows.json';
 
 describe('getAvailableVersions', () => {
   let spyHttpClient: jest.SpyInstance;
   let spyUtilGetDownloadArchiveExtension: jest.SpyInstance;
+  let spyCoreError: jest.SpyInstance;
 
   beforeEach(() => {
     spyHttpClient = jest.spyOn(HttpClient.prototype, 'getJson');
@@ -24,6 +26,10 @@ describe('getAvailableVersions', () => {
       'getDownloadArchiveExtension'
     );
     spyUtilGetDownloadArchiveExtension.mockReturnValue('zip');
+
+    // Mock core.error to suppress error logs
+    spyCoreError = jest.spyOn(core, 'error');
+    spyCoreError.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -226,6 +232,6 @@ describe('findPackageForDownload', () => {
     distribution['getAvailableVersions'] = async () => manifestData;
     await expect(
       distribution['findPackageForDownload'](distribution['version'])
-    ).rejects.toThrow(/Could not find satisfied version for semver */);
+    ).rejects.toThrow(/No matching version found for SemVer/);
   });
 });

__tests__/util.test.ts

@@ -4,10 +4,12 @@ import * as fs from 'fs';
 import * as path from 'path';
 import {
   convertVersionToSemver,
+  getNextPageUrlFromLinkHeader,
   getVersionFromFileContent,
   isVersionSatisfies,
   isCacheFeatureAvailable,
-  isGhes
+  isGhes,
+  validatePaginationUrl
 } from '../src/util';
 
 jest.mock('@actions/cache');
@@ -85,6 +87,78 @@ describe('convertVersionToSemver', () => {
   });
 });
 
+describe('getNextPageUrlFromLinkHeader', () => {
+  it.each([
+    [
+      {
+        link: '<https://api.adoptium.net/v3/info/release_versions?page=1&page_size=10>; rel="next"'
+      },
+      'https://api.adoptium.net/v3/info/release_versions?page=1&page_size=10'
+    ],
+    [
+      {
+        Link: '<https://example.com/last?page=5>; rel="last", <https://example.com/next?page=2>; rel="next"'
+      },
+      'https://example.com/next?page=2'
+    ],
+    [
+      {
+        link: '<https://api.adoptium.net/v3/versions?page=3>; type="application/json"; rel="next"'
+      },
+      'https://api.adoptium.net/v3/versions?page=3'
+    ],
+    [{link: '<https://example.com/last?page=5>; rel="last"'}, null],
+    [{link: '<https://example.com/page?p=2>; rel="nextsomething"'}, null],
+    [undefined, null]
+  ])('returns %s -> %s', (headers, expected) => {
+    expect(getNextPageUrlFromLinkHeader(headers)).toBe(expected);
+  });
+});
+
+describe('validatePaginationUrl', () => {
+  it('accepts URL with matching origin', () => {
+    expect(
+      validatePaginationUrl(
+        'https://api.adoptium.net/v3/assets?page=2',
+        'https://api.adoptium.net'
+      )
+    ).toBe(true);
+  });
+
+  it('rejects URL with different host', () => {
+    expect(
+      validatePaginationUrl(
+        'https://evil.example.com/steal?data=1',
+        'https://api.adoptium.net'
+      )
+    ).toBe(false);
+  });
+
+  it('rejects URL with different protocol', () => {
+    expect(
+      validatePaginationUrl(
+        'http://api.adoptium.net/v3/assets?page=2',
+        'https://api.adoptium.net'
+      )
+    ).toBe(false);
+  });
+
+  it('returns false for invalid URL', () => {
+    expect(validatePaginationUrl('not-a-url', 'https://api.adoptium.net')).toBe(
+      false
+    );
+  });
+
+  it('accepts URL with explicit default port', () => {
+    expect(
+      validatePaginationUrl(
+        'https://api.adoptium.net:443/v3/assets?page=2',
+        'https://api.adoptium.net'
+      )
+    ).toBe(true);
+  });
+});
+
 describe('getVersionFromFileContent', () => {
   describe('.sdkmanrc', () => {
     it.each([

action.yml

@@ -43,9 +43,21 @@ inputs:
     description: 'Path to where the settings.xml file will be written. Default is ~/.m2.'
     required: false
   overwrite-settings:
-    description: 'Overwrite the settings.xml file if it exists. Default is "true".'
+    description: 'Overwrite the settings.xml file if it exists. Default is "!update-toolchains-only". If explcitly set "true", it will update settings.xml regardless of "update-toolchains-only"'
     required: false
-    default: true
+    # DO NOT set a default here! The default will be propagated from input 'update-toolchains-only'!
+  update-toolchains-only:
+    description: 'Update toolchains.xml only. Default is "false". No update of settings.xml, no update of JAVA_HOME, no adding to PATH by default - unless "overwrite-settings", "update-env-javahome" or "add-to-env-path" are not explicitly set "true"'
+    required: false
+    default: false
+  update-env-javahome:
+    description: 'Update the JAVA_HOME environment variable. Default is "!update-toolchains-only"'
+    required: false
+    # DO NOT set a default here! The default will be propagated from input 'update-toolchains-only'!
+  add-to-env-path:
+    description: 'Add "<JDK home>/bin" to the PATH environment variable. Default is "!update-toolchains-only"'
+    required: false
+    # DO NOT set a default here! The default will be propagated from input 'update-toolchains-only'!
   gpg-private-key:
     description: 'GPG private key to import. Default is empty string.'
     required: false

package.json

@@ -29,31 +29,31 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@actions/cache": "^5.0.1",
-    "@actions/core": "^1.10.0",
-    "@actions/exec": "^1.0.4",
-    "@actions/glob": "^0.5.0",
-    "@actions/http-client": "^2.2.3",
-    "@actions/io": "^1.0.2",
-    "@actions/tool-cache": "^2.0.1",
+    "@actions/cache": "^5.0.5",
+    "@actions/core": "^2.0.3",
+    "@actions/exec": "^2.0.0",
+    "@actions/glob": "^0.5.1",
+    "@actions/http-client": "^3.0.2",
+    "@actions/io": "^2.0.0",
+    "@actions/tool-cache": "^3.0.1",
     "semver": "^7.6.0",
-    "xmlbuilder2": "^2.4.0"
+    "xmlbuilder2": "^4.0.3"
   },
   "devDependencies": {
-    "@types/jest": "^29.5.14",
-    "@types/node": "^24.1.0",
+    "@types/jest": "^30.0.0",
+    "@types/node": "^25.9.3",
     "@types/semver": "^7.5.8",
-    "@typescript-eslint/eslint-plugin": "^8.35.1",
+    "@typescript-eslint/eslint-plugin": "^8.48.0",
     "@typescript-eslint/parser": "^8.35.1",
     "@vercel/ncc": "^0.38.1",
     "eslint": "^8.57.0",
-    "eslint-config-prettier": "^8.6.0",
+    "eslint-config-prettier": "^10.1.8",
     "eslint-plugin-jest": "^29.0.1",
     "eslint-plugin-node": "^11.1.0",
-    "jest": "^29.7.0",
-    "jest-circus": "^29.7.0",
+    "jest": "^30.4.2",
+    "jest-circus": "^30.4.2",
     "prettier": "^3.6.2",
-    "ts-jest": "^29.3.0",
+    "ts-jest": "^29.4.11",
     "typescript": "^5.3.3"
   },
   "bugs": {

src/auth.ts

@@ -10,17 +10,13 @@ import * as constants from './constants';
 import * as gpg from './gpg';
 import {getBooleanInput} from './util';
 
-export async function configureAuthentication() {
+export async function configureAuthentication(overwriteSettings: boolean) {
   const id = core.getInput(constants.INPUT_SERVER_ID);
   const username = core.getInput(constants.INPUT_SERVER_USERNAME);
   const password = core.getInput(constants.INPUT_SERVER_PASSWORD);
   const settingsDirectory =
     core.getInput(constants.INPUT_SETTINGS_PATH) ||
     path.join(os.homedir(), constants.M2_DIR);
-  const overwriteSettings = getBooleanInput(
-    constants.INPUT_OVERWRITE_SETTINGS,
-    true
-  );
   const gpgPrivateKey =
     core.getInput(constants.INPUT_GPG_PRIVATE_KEY) ||
     constants.INPUT_DEFAULT_GPG_PRIVATE_KEY;

src/constants.ts

@@ -11,6 +11,9 @@ export const INPUT_SERVER_USERNAME = 'server-username';
 export const INPUT_SERVER_PASSWORD = 'server-password';
 export const INPUT_SETTINGS_PATH = 'settings-path';
 export const INPUT_OVERWRITE_SETTINGS = 'overwrite-settings';
+export const INPUT_UPDATE_TOOLCHAINS_ONLY = 'update-toolchains-only';
+export const INPUT_UPDATE_JAVA_HOME = 'update-env-javahome';
+export const INPUT_ADD_TO_PATH = 'add-to-env-path';
 export const INPUT_GPG_PRIVATE_KEY = 'gpg-private-key';
 export const INPUT_GPG_PASSPHRASE = 'gpg-passphrase';
 

src/distributions/adopt/installer.ts

@@ -14,10 +14,14 @@ import {
 } from '../base-models';
 import {
   extractJdkFile,
+  getNextPageUrlFromLinkHeader,
   getDownloadArchiveExtension,
   isVersionSatisfies,
-  renameWinArchive
+  renameWinArchive,
+  MAX_PAGINATION_PAGES,
+  validatePaginationUrl
 } from '../../util';
+import {TemurinDistribution, TemurinImplementation} from '../temurin/installer';
 
 export enum AdoptImplementation {
   Hotspot = 'Hotspot',
@@ -25,15 +29,72 @@ export enum AdoptImplementation {
 }
 
 export class AdoptDistribution extends JavaBase {
+  private readonly temurinDistribution: TemurinDistribution | null;
+
   constructor(
     installerOptions: JavaInstallerOptions,
-    private readonly jvmImpl: AdoptImplementation
+    private readonly jvmImpl: AdoptImplementation,
+    temurinDistribution: TemurinDistribution | null = null
   ) {
     super(`Adopt-${jvmImpl}`, installerOptions);
+
+    if (
+      temurinDistribution !== null &&
+      jvmImpl !== AdoptImplementation.Hotspot
+    ) {
+      throw new Error('Only Hotspot JVM is supported by Temurin.');
+    }
+
+    // Only use the temurin repo for Hotspot JVMs
+    this.temurinDistribution =
+      temurinDistribution ??
+      (jvmImpl === AdoptImplementation.Hotspot
+        ? new TemurinDistribution(
+            installerOptions,
+            TemurinImplementation.Hotspot
+          )
+        : null);
   }
 
   protected async findPackageForDownload(
     version: string
+  ): Promise<JavaDownloadRelease> {
+    if (this.jvmImpl === AdoptImplementation.Hotspot) {
+      core.notice(
+        "AdoptOpenJDK has moved to Eclipse Temurin https://github.com/actions/setup-java#supported-distributions please consider changing to the 'temurin' distribution type in your setup-java configuration."
+      );
+    }
+
+    if (
+      this.jvmImpl === AdoptImplementation.Hotspot &&
+      this.temurinDistribution !== null
+    ) {
+      try {
+        return await this.temurinDistribution.findPackageForDownload(version);
+      } catch (error) {
+        // Log the failure but always fall back to legacy AdoptOpenJDK for resilience
+        const errorMessage =
+          error instanceof Error ? error.message : String(error);
+        if (error instanceof Error && error.name === 'VersionNotFoundError') {
+          core.notice(
+            'The JVM you are looking for could not be found in the Temurin repository, this likely indicates ' +
+              'that you are using an out of date version of Java, consider updating and moving to using the Temurin distribution type in setup-java.'
+          );
+        } else {
+          // Log other errors for debugging but gracefully fall back
+          core.debug(
+            `Temurin lookup failed: ${errorMessage}. Falling back to AdoptOpenJDK API.`
+          );
+        }
+      }
+    }
+
+    // failed to find a Temurin version, so fall back to AdoptOpenJDK
+    return this.findPackageForDownloadOldAdoptOpenJdk(version);
+  }
+
+  private async findPackageForDownloadOldAdoptOpenJdk(
+    version: string
   ): Promise<JavaDownloadRelease> {
     const availableVersionsRaw = await this.getAvailableVersions();
     const availableVersionsWithBinaries = availableVersionsRaw
@@ -54,15 +115,10 @@ export class AdoptDistribution extends JavaBase {
     const resolvedFullVersion =
       satisfiedVersions.length > 0 ? satisfiedVersions[0] : null;
     if (!resolvedFullVersion) {
-      const availableOptions = availableVersionsWithBinaries
-        .map(item => item.version)
-        .join(', ');
-      const availableOptionsMessage = availableOptions
-        ? `\nAvailable versions: ${availableOptions}`
-        : '';
-      throw new Error(
-        `Could not find satisfied version for SemVer '${version}'. ${availableOptionsMessage}`
+      const availableVersionStrings = availableVersionsWithBinaries.map(
+        item => item.version
       );
+      throw this.createVersionNotFoundError(version, availableVersionStrings);
     }
 
     return resolvedFullVersion;
@@ -130,30 +186,46 @@ export class AdoptDistribution extends JavaBase {
       `jvm_impl=${this.jvmImpl.toLowerCase()}`
     ].join('&');
 
-    // need to iterate through all pages to retrieve the list of all versions
-    // Adopt API doesn't provide way to retrieve the count of pages to iterate so infinity loop
-    let page_index = 0;
+    const requestArguments = `${baseRequestArguments}&page_size=20&page=0`;
+    let availableVersionsUrl: string | null =
+      `https://api.adoptopenjdk.net/v3/assets/version/${versionRange}?${requestArguments}`;
     const availableVersions: IAdoptAvailableVersions[] = [];
-    while (true) {
-      const requestArguments = `${baseRequestArguments}&page_size=20&page=${page_index}`;
-      const availableVersionsUrl = `https://api.adoptopenjdk.net/v3/assets/version/${versionRange}?${requestArguments}`;
-      if (core.isDebug() && page_index === 0) {
-        // url is identical except page_index so print it once for debug
-        core.debug(
-          `Gathering available versions from '${availableVersionsUrl}'`
-        );
-      }
+    let pageCount = 0;
+    if (core.isDebug()) {
+      core.debug(`Gathering available versions from '${availableVersionsUrl}'`);
+    }
 
-      const paginationPage = (
-        await this.http.getJson<IAdoptAvailableVersions[]>(availableVersionsUrl)
-      ).result;
+    while (availableVersionsUrl) {
+      pageCount++;
+      const response =
+        await this.http.getJson<IAdoptAvailableVersions[]>(
+          availableVersionsUrl
+        );
+      const paginationPage = response.result;
+      const nextUrl = getNextPageUrlFromLinkHeader(response.headers);
+      if (
+        nextUrl &&
+        !validatePaginationUrl(nextUrl, 'https://api.adoptopenjdk.net')
+      ) {
+        core.warning(
+          `Ignoring pagination link with unexpected origin: ${nextUrl}`
+        );
+        availableVersionsUrl = null;
+      } else {
+        availableVersionsUrl = nextUrl;
+      }
       if (paginationPage === null || paginationPage.length === 0) {
-        // break infinity loop because we have reached end of pagination
         break;
       }
 
       availableVersions.push(...paginationPage);
-      page_index++;
+
+      if (pageCount >= MAX_PAGINATION_PAGES) {
+        core.warning(
+          `Reached pagination safeguard limit (${MAX_PAGINATION_PAGES} pages) while listing Adopt releases.`
+        );
+        break;
+      }
     }
 
     if (core.isDebug()) {

src/distributions/base-installer.ts

@@ -10,7 +10,11 @@ import {
   JavaInstallerOptions,
   JavaInstallerResults
 } from './base-models';
-import {MACOS_JAVA_CONTENT_POSTFIX} from '../constants';
+import {
+  MACOS_JAVA_CONTENT_POSTFIX,
+  INPUT_UPDATE_JAVA_HOME,
+  INPUT_ADD_TO_PATH
+} from '../constants';
 import os from 'os';
 
 export abstract class JavaBase {
@@ -20,6 +24,8 @@ export abstract class JavaBase {
   protected packageType: string;
   protected stable: boolean;
   protected checkLatest: boolean;
+  protected updateEnvJavaHome: boolean;
+  protected addToEnvPath: boolean;
 
   constructor(
     protected distribution: string,
@@ -36,6 +42,8 @@ export abstract class JavaBase {
     this.architecture = installerOptions.architecture || os.arch();
     this.packageType = installerOptions.packageType;
     this.checkLatest = installerOptions.checkLatest;
+    this.updateEnvJavaHome = installerOptions.updateEnvJavaHome;
+    this.addToEnvPath = installerOptions.addToEnvPath;
   }
 
   protected abstract downloadTool(
@@ -259,10 +267,58 @@ export abstract class JavaBase {
     };
   }
 
+  protected createVersionNotFoundError(
+    versionOrRange: string,
+    availableVersions?: string[],
+    additionalContext?: string
+  ): Error {
+    const parts = [
+      `No matching version found for SemVer '${versionOrRange}'.`,
+      `Distribution: ${this.distribution}`,
+      `Package type: ${this.packageType}`,
+      `Architecture: ${this.architecture}`
+    ];
+
+    // Add additional context if provided (e.g., platform/OS info)
+    if (additionalContext) {
+      parts.push(additionalContext);
+    }
+
+    if (availableVersions && availableVersions.length > 0) {
+      const maxVersionsToShow = core.isDebug() ? availableVersions.length : 50;
+      const versionsToShow = availableVersions.slice(0, maxVersionsToShow);
+      const truncated = availableVersions.length > maxVersionsToShow;
+
+      parts.push(
+        `Available versions: ${versionsToShow.join(', ')}${truncated ? ', ...' : ''}`
+      );
+
+      if (truncated) {
+        parts.push(
+          `(showing first ${maxVersionsToShow} of ${availableVersions.length} versions, enable debug mode to see all)`
+        );
+      }
+    }
+
+    const error = new Error(parts.join('\n'));
+    error.name = 'VersionNotFoundError';
+    return error;
+  }
+
   protected setJavaDefault(version: string, toolPath: string) {
     const majorVersion = version.split('.')[0];
-    core.exportVariable('JAVA_HOME', toolPath);
-    core.addPath(path.join(toolPath, 'bin'));
+    if (this.updateEnvJavaHome) {
+      core.exportVariable('JAVA_HOME', toolPath);
+    } else {
+      core.info(
+        `Skip updating env.JAVA_HOME according to ${INPUT_UPDATE_JAVA_HOME}`
+      );
+    }
+    if (this.addToEnvPath) {
+      core.addPath(path.join(toolPath, 'bin'));
+    } else {
+      core.info(`Skip adding to env.PATH according to ${INPUT_ADD_TO_PATH}`);
+    }
     core.setOutput('distribution', this.distribution);
     core.setOutput('path', toolPath);
     core.setOutput('version', version);

src/distributions/base-models.ts

@@ -3,6 +3,8 @@ export interface JavaInstallerOptions {
   architecture: string;
   packageType: string;
   checkLatest: boolean;
+  updateEnvJavaHome: boolean;
+  addToEnvPath: boolean;
 }
 
 export interface JavaInstallerResults {

src/distributions/corretto/installer.ts

@@ -75,15 +75,10 @@ export class CorrettoDistribution extends JavaBase {
     const resolvedVersion =
       matchingVersions.length > 0 ? matchingVersions[0] : null;
     if (!resolvedVersion) {
-      const availableOptions = availableVersions
-        .map(item => item.version)
-        .join(', ');
-      const availableOptionsMessage = availableOptions
-        ? `\nAvailable versions: ${availableOptions}`
-        : '';
-      throw new Error(
-        `Could not find satisfied version for SemVer '${version}'. ${availableOptionsMessage}`
+      const availableVersionStrings = availableVersions.map(
+        item => item.version
       );
+      throw this.createVersionNotFoundError(version, availableVersionStrings);
     }
     return resolvedVersion;
   }

src/distributions/dragonwell/installer.ts

@@ -51,9 +51,10 @@ export class DragonwellDistribution extends JavaBase {
       });
 
     if (!matchedVersions.length) {
-      throw new Error(
-        `Couldn't find any satisfied version for the specified java-version: "${version}" and architecture: "${this.architecture}".`
+      const availableVersionStrings = availableVersions.map(
+        item => item.jdk_version
       );
+      throw this.createVersionNotFoundError(version, availableVersionStrings);
     }
 
     const resolvedVersion = matchedVersions[0];

src/distributions/graalvm/installer.ts

@@ -18,6 +18,7 @@ import {
 } from '../../util';
 
 const GRAALVM_DL_BASE = 'https://download.oracle.com/graalvm';
+const GRAALVM_DOWNLOAD_URL = 'https://www.graalvm.org/downloads/';
 const IS_WINDOWS = process.platform === 'win32';
 const GRAALVM_PLATFORM = IS_WINDOWS ? 'windows' : process.platform;
 const GRAALVM_MIN_VERSION = 17;
@@ -149,9 +150,10 @@ export class GraalVMDistribution extends JavaBase {
     const statusCode = response.message.statusCode;
 
     if (statusCode === HttpCodes.NotFound) {
-      throw new Error(
-        `Could not find GraalVM for SemVer ${range}. Please check if this version is available at ${GRAALVM_DL_BASE}`
-      );
+      // Create the standard error with additional hint about checking the download URL
+      const error = this.createVersionNotFoundError(range);
+      error.message += `\nPlease check if this version is available at ${GRAALVM_DOWNLOAD_URL} . Pick a version from the list.`;
+      throw error;
     }
 
     if (
@@ -180,10 +182,12 @@ export class GraalVMDistribution extends JavaBase {
 
     const latestVersion = versions.find(v => v.latest);
     if (!latestVersion) {
-      core.error(
-        `Available versions: ${versions.map(v => v.version).join(', ')}`
+      const availableVersions = versions.map(v => v.version);
+      throw this.createVersionNotFoundError(
+        javaEaVersion,
+        availableVersions,
+        'Note: No EA build is marked as latest for this version.'
       );
-      throw new Error(`Unable to find latest version for '${javaEaVersion}'`);
     }
 
     core.debug(`Latest version found: ${latestVersion.version}`);

src/distributions/jetbrains/installer.ts

@@ -44,15 +44,10 @@ export class JetBrainsDistribution extends JavaBase {
     const resolvedFullVersion =
       satisfiedVersions.length > 0 ? satisfiedVersions[0] : null;
     if (!resolvedFullVersion) {
-      const availableOptions = versionsRaw
-        .map(item => `${item.tag_name} (${item.semver}+${item.build})`)
-        .join(', ');
-      const availableOptionsMessage = availableOptions
-        ? `\nAvailable versions: ${availableOptions}`
-        : '';
-      throw new Error(
-        `Could not find satisfied version for SemVer '${range}'. ${availableOptionsMessage}`
+      const availableVersionStrings = versionsRaw.map(
+        item => `${item.tag_name} (${item.semver}+${item.build})`
       );
+      throw this.createVersionNotFoundError(range, availableVersionStrings);
     }
 
     return resolvedFullVersion;

src/distributions/liberica/installer.ts

@@ -69,15 +69,10 @@ export class LibericaDistributions extends JavaBase {
       .sort((a, b) => -semver.compareBuild(a.version, b.version))[0];
 
     if (!satisfiedVersion) {
-      const availableOptions = availableVersions
-        .map(item => item.version)
-        .join(', ');
-      const availableOptionsMessage = availableOptions
-        ? `\nAvailable versions: ${availableOptions}`
-        : '';
-      throw new Error(
-        `Could not find satisfied version for semver ${range}. ${availableOptionsMessage}`
+      const availableVersionStrings = availableVersions.map(
+        item => item.version
       );
+      throw this.createVersionNotFoundError(range, availableVersionStrings);
     }
 
     return satisfiedVersion;

src/distributions/microsoft/installer.ts

@@ -76,11 +76,8 @@ export class MicrosoftDistributions extends JavaBase {
     const foundRelease = await tc.findFromManifest(range, true, manifest, arch);
 
     if (!foundRelease) {
-      throw new Error(
-        `Could not find satisfied version for SemVer ${range}.\nAvailable versions: ${manifest
-          .map(item => item.version)
-          .join(', ')}`
-      );
+      const availableVersionStrings = manifest.map(item => item.version);
+      throw this.createVersionNotFoundError(range, availableVersionStrings);
     }
 
     return {

src/distributions/oracle/installer.ts

@@ -112,7 +112,7 @@ export class OracleDistribution extends JavaBase {
       }
     }
 
-    throw new Error(`Could not find Oracle JDK for SemVer ${range}`);
+    throw this.createVersionNotFoundError(range);
   }
 
   public getPlatform(platform: NodeJS.Platform = process.platform): OsVersions {

src/distributions/sapmachine/installer.ts

@@ -49,9 +49,10 @@ export class SapMachineDistribution extends JavaBase {
       });
 
     if (!matchedVersions.length) {
-      throw new Error(
-        `Couldn't find any satisfied version for the specified java-version: "${version}" and architecture: "${this.architecture}".`
+      const availableVersionStrings = availableVersions.map(
+        item => item.version
       );
+      throw this.createVersionNotFoundError(version, availableVersionStrings);
     }
 
     const resolvedVersion = matchedVersions[0];

src/distributions/semeru/installer.ts

@@ -7,9 +7,12 @@ import {
 import semver from 'semver';
 import {
   extractJdkFile,
+  getNextPageUrlFromLinkHeader,
   getDownloadArchiveExtension,
   isVersionSatisfies,
-  renameWinArchive
+  renameWinArchive,
+  MAX_PAGINATION_PAGES,
+  validatePaginationUrl
 } from '../../util';
 import * as core from '@actions/core';
 import * as tc from '@actions/tool-cache';
@@ -79,14 +82,16 @@ export class SemeruDistribution extends JavaBase {
     const resolvedFullVersion =
       satisfiedVersions.length > 0 ? satisfiedVersions[0] : null;
     if (!resolvedFullVersion) {
-      const availableOptions = availableVersionsWithBinaries
-        .map(item => item.version)
-        .join(', ');
-      const availableOptionsMessage = availableOptions
-        ? `\nAvailable versions: ${availableOptions}`
-        : '';
-      throw new Error(
-        `Could not find satisfied version for SemVer version '${version}' for your current OS version for ${this.architecture} architecture ${availableOptionsMessage}`
+      const availableVersionStrings = availableVersionsWithBinaries.map(
+        item => item.version
+      );
+      // Include platform context to help users understand OS-specific version availability
+      // IBM Semeru builds are OS-specific, so platform info aids in troubleshooting
+      const platformContext = `Platform: ${process.platform}`;
+      throw this.createVersionNotFoundError(
+        version,
+        availableVersionStrings,
+        platformContext
       );
     }
 
@@ -153,32 +158,46 @@ export class SemeruDistribution extends JavaBase {
       `jvm_impl=openj9`
     ].join('&');
 
-    // need to iterate through all pages to retrieve the list of all versions
-    // Adoptium API doesn't provide way to retrieve the count of pages to iterate so infinity loop
-    let page_index = 0;
+    const requestArguments = `${baseRequestArguments}&page_size=20&page=0`;
+    let availableVersionsUrl: string | null =
+      `https://api.adoptopenjdk.net/v3/assets/version/${versionRange}?${requestArguments}`;
     const availableVersions: ISemeruAvailableVersions[] = [];
-    while (true) {
-      const requestArguments = `${baseRequestArguments}&page_size=20&page=${page_index}`;
-      const availableVersionsUrl = `https://api.adoptopenjdk.net/v3/assets/version/${versionRange}?${requestArguments}`;
-      if (core.isDebug() && page_index === 0) {
-        // url is identical except page_index so print it once for debug
-        core.debug(
-          `Gathering available versions from '${availableVersionsUrl}'`
-        );
-      }
+    let pageCount = 0;
+    if (core.isDebug()) {
+      core.debug(`Gathering available versions from '${availableVersionsUrl}'`);
+    }
 
-      const paginationPage = (
+    while (availableVersionsUrl) {
+      pageCount++;
+      const response =
         await this.http.getJson<ISemeruAvailableVersions[]>(
           availableVersionsUrl
-        )
-      ).result;
+        );
+      const paginationPage = response.result;
+      const nextUrl = getNextPageUrlFromLinkHeader(response.headers);
+      if (
+        nextUrl &&
+        !validatePaginationUrl(nextUrl, 'https://api.adoptopenjdk.net')
+      ) {
+        core.warning(
+          `Ignoring pagination link with unexpected origin: ${nextUrl}`
+        );
+        availableVersionsUrl = null;
+      } else {
+        availableVersionsUrl = nextUrl;
+      }
       if (paginationPage === null || paginationPage.length === 0) {
-        // break infinity loop because we have reached end of pagination
         break;
       }
 
       availableVersions.push(...paginationPage);
-      page_index++;
+
+      if (pageCount >= MAX_PAGINATION_PAGES) {
+        core.warning(
+          `Reached pagination safeguard limit (${MAX_PAGINATION_PAGES} pages) while listing Semeru releases.`
+        );
+        break;
+      }
     }
 
     if (core.isDebug()) {

src/distributions/temurin/installer.ts

@@ -14,9 +14,12 @@ import {
 } from '../base-models';
 import {
   extractJdkFile,
+  getNextPageUrlFromLinkHeader,
   getDownloadArchiveExtension,
   isVersionSatisfies,
-  renameWinArchive
+  renameWinArchive,
+  MAX_PAGINATION_PAGES,
+  validatePaginationUrl
 } from '../../util';
 
 export enum TemurinImplementation {
@@ -31,7 +34,10 @@ export class TemurinDistribution extends JavaBase {
     super(`Temurin-${jvmImpl}`, installerOptions);
   }
 
-  protected async findPackageForDownload(
+  /**
+   * @internal For cross-distribution reuse only. Not intended as a public API.
+   */
+  public async findPackageForDownload(
     version: string
   ): Promise<JavaDownloadRelease> {
     const availableVersionsRaw = await this.getAvailableVersions();
@@ -57,15 +63,10 @@ export class TemurinDistribution extends JavaBase {
     const resolvedFullVersion =
       satisfiedVersions.length > 0 ? satisfiedVersions[0] : null;
     if (!resolvedFullVersion) {
-      const availableOptions = availableVersionsWithBinaries
-        .map(item => item.version)
-        .join(', ');
-      const availableOptionsMessage = availableOptions
-        ? `\nAvailable versions: ${availableOptions}`
-        : '';
-      throw new Error(
-        `Could not find satisfied version for SemVer '${version}'. ${availableOptionsMessage}`
+      const availableVersionStrings = availableVersionsWithBinaries.map(
+        item => item.version
       );
+      throw this.createVersionNotFoundError(version, availableVersionStrings);
     }
 
     return resolvedFullVersion;
@@ -128,32 +129,47 @@ export class TemurinDistribution extends JavaBase {
       `jvm_impl=${this.jvmImpl.toLowerCase()}`
     ].join('&');
 
-    // need to iterate through all pages to retrieve the list of all versions
-    // Adoptium API doesn't provide way to retrieve the count of pages to iterate so infinity loop
-    let page_index = 0;
+    const requestArguments = `${baseRequestArguments}&page_size=20&page=0`;
+    let availableVersionsUrl: string | null =
+      `https://api.adoptium.net/v3/assets/version/${versionRange}?${requestArguments}`;
     const availableVersions: ITemurinAvailableVersions[] = [];
-    while (true) {
-      const requestArguments = `${baseRequestArguments}&page_size=20&page=${page_index}`;
-      const availableVersionsUrl = `https://api.adoptium.net/v3/assets/version/${versionRange}?${requestArguments}`;
-      if (core.isDebug() && page_index === 0) {
-        // url is identical except page_index so print it once for debug
-        core.debug(
-          `Gathering available versions from '${availableVersionsUrl}'`
-        );
-      }
+    let pageCount = 0;
+    if (core.isDebug()) {
+      core.debug(`Gathering available versions from '${availableVersionsUrl}'`);
+    }
 
-      const paginationPage = (
+    while (availableVersionsUrl) {
+      pageCount++;
+      const response =
         await this.http.getJson<ITemurinAvailableVersions[]>(
           availableVersionsUrl
-        )
-      ).result;
+        );
+      const paginationPage = response.result;
+      const nextUrl = getNextPageUrlFromLinkHeader(response.headers);
+      if (
+        nextUrl &&
+        !validatePaginationUrl(nextUrl, 'https://api.adoptium.net')
+      ) {
+        core.warning(
+          `Ignoring pagination link with unexpected origin: ${nextUrl}`
+        );
+        availableVersionsUrl = null;
+      } else {
+        availableVersionsUrl = nextUrl;
+      }
+
       if (paginationPage === null || paginationPage.length === 0) {
-        // break infinity loop because we have reached end of pagination
         break;
       }
 
       availableVersions.push(...paginationPage);
-      page_index++;
+
+      if (pageCount >= MAX_PAGINATION_PAGES) {
+        core.warning(
+          `Reached pagination safeguard limit (${MAX_PAGINATION_PAGES} pages) while listing Temurin releases.`
+        );
+        break;
+      }
     }
 
     if (core.isDebug()) {
@@ -176,6 +192,11 @@ export class TemurinDistribution extends JavaBase {
         return 'mac';
       case 'win32':
         return 'windows';
+      case 'linux':
+        if (fs.existsSync('/etc/alpine-release')) {
+          return 'alpine-linux';
+        }
+        return 'linux';
       default:
         return process.platform;
     }

src/distributions/zulu/installer.ts

@@ -57,15 +57,10 @@ export class ZuluDistribution extends JavaBase {
     const resolvedFullVersion =
       satisfiedVersions.length > 0 ? satisfiedVersions[0] : null;
     if (!resolvedFullVersion) {
-      const availableOptions = availableVersions
-        .map(item => item.version)
-        .join(', ');
-      const availableOptionsMessage = availableOptions
-        ? `\nAvailable versions: ${availableOptions}`
-        : '';
-      throw new Error(
-        `Could not find satisfied version for semver ${version}. ${availableOptionsMessage}`
+      const availableVersionStrings = availableVersions.map(
+        item => item.version
       );
+      throw this.createVersionNotFoundError(version, availableVersionStrings);
     }
 
     return resolvedFullVersion;

src/setup-java.ts

@@ -13,6 +13,19 @@ import * as path from 'path';
 import {getJavaDistribution} from './distributions/distribution-factory';
 import {JavaInstallerOptions} from './distributions/base-models';
 
+interface IInstallerInputsOptions {
+  architecture: string;
+  packageType: string;
+  checkLatest: boolean;
+  distributionName: string;
+  jdkFile: string;
+  toolchainIds: Array<string>;
+  updateToolchainsOnly: boolean;
+  overwriteSettings: boolean;
+  updateEnvJavaHome: boolean;
+  addToEnvPath: boolean;
+}
+
 async function run() {
   try {
     const versions = core.getMultilineInput(constants.INPUT_JAVA_VERSION);
@@ -28,6 +41,23 @@ async function run() {
       constants.INPUT_CACHE_DEPENDENCY_PATH
     );
     const checkLatest = getBooleanInput(constants.INPUT_CHECK_LATEST, false);
+    const updateToolchainsOnly = getBooleanInput(
+      constants.INPUT_UPDATE_TOOLCHAINS_ONLY,
+      false
+    );
+    const overwriteSettings = getBooleanInput(
+      constants.INPUT_OVERWRITE_SETTINGS,
+      !updateToolchainsOnly
+    );
+    const updateEnvJavaHome = getBooleanInput(
+      constants.INPUT_UPDATE_JAVA_HOME,
+      !updateToolchainsOnly
+    );
+    const addToEnvPath = getBooleanInput(
+      constants.INPUT_ADD_TO_PATH,
+      !updateToolchainsOnly
+    );
+
     let toolchainIds = core.getMultilineInput(constants.INPUT_MVN_TOOLCHAIN_ID);
 
     core.startGroup('Installed distributions');
@@ -40,13 +70,17 @@ async function run() {
       throw new Error('java-version or java-version-file input expected');
     }
 
-    const installerInputsOptions: installerInputsOptions = {
+    const installerInputsOptions: IInstallerInputsOptions = {
       architecture,
       packageType,
       checkLatest,
       distributionName,
       jdkFile,
-      toolchainIds
+      toolchainIds,
+      updateToolchainsOnly,
+      overwriteSettings,
+      updateEnvJavaHome,
+      addToEnvPath
     };
 
     if (!versions.length) {
@@ -78,7 +112,7 @@ async function run() {
     const matchersPath = path.join(__dirname, '..', '..', '.github');
     core.info(`##[add-matcher]${path.join(matchersPath, 'java.json')}`);
 
-    await auth.configureAuthentication();
+    await auth.configureAuthentication(overwriteSettings);
     if (cache && isCacheFeatureAvailable()) {
       await restore(cache, cacheDependencyPath);
     }
@@ -91,7 +125,7 @@ run();
 
 async function installVersion(
   version: string,
-  options: installerInputsOptions,
+  options: IInstallerInputsOptions,
   toolchainId = 0
 ) {
   const {
@@ -100,14 +134,20 @@ async function installVersion(
     architecture,
     packageType,
     checkLatest,
-    toolchainIds
+    toolchainIds,
+    updateToolchainsOnly,
+    overwriteSettings,
+    updateEnvJavaHome,
+    addToEnvPath
   } = options;
 
   const installerOptions: JavaInstallerOptions = {
+    version,
     architecture,
     packageType,
     checkLatest,
-    version
+    updateEnvJavaHome,
+    addToEnvPath
   };
 
   const distribution = getJavaDistribution(
@@ -126,6 +166,7 @@ async function installVersion(
     version,
     distributionName,
     result.path,
+    overwriteSettings || updateToolchainsOnly,
     toolchainIds[toolchainId]
   );
 
@@ -136,12 +177,3 @@ async function installVersion(
   core.info(`  Path: ${result.path}`);
   core.info('');
 }
-
-interface installerInputsOptions {
-  architecture: string;
-  packageType: string;
-  checkLatest: boolean;
-  distributionName: string;
-  jdkFile: string;
-  toolchainIds: Array<string>;
-}

src/toolchains.ts

@@ -19,6 +19,7 @@ export async function configureToolchains(
   version: string,
   distributionName: string,
   jdkHome: string,
+  updateToolchains: boolean,
   toolchainId?: string
 ) {
   const vendor =
@@ -27,10 +28,6 @@ export async function configureToolchains(
   const settingsDirectory =
     core.getInput(constants.INPUT_SETTINGS_PATH) ||
     path.join(os.homedir(), constants.M2_DIR);
-  const overwriteSettings = getBooleanInput(
-    constants.INPUT_OVERWRITE_SETTINGS,
-    true
-  );
 
   await createToolchainsSettings({
     jdkInfo: {
@@ -40,21 +37,21 @@ export async function configureToolchains(
       jdkHome
     },
     settingsDirectory,
-    overwriteSettings
+    updateToolchains
   });
 }
 
 export async function createToolchainsSettings({
   jdkInfo,
   settingsDirectory,
-  overwriteSettings
+  updateToolchains
 }: {
   jdkInfo: JdkInfo;
   settingsDirectory: string;
-  overwriteSettings: boolean;
+  updateToolchains: boolean;
 }) {
   core.info(
-    `Creating ${constants.MVN_TOOLCHAINS_FILE} for JDK version ${jdkInfo.version} from ${jdkInfo.vendor}`
+    `Adding a toolchain entry in ${constants.MVN_TOOLCHAINS_FILE} for JDK version ${jdkInfo.version} from ${jdkInfo.vendor}`
   );
   // when an alternate m2 location is specified use only that location (no .m2 directory)
   // otherwise use the home/.m2/ path
@@ -71,7 +68,7 @@ export async function createToolchainsSettings({
   await writeToolchainsFileToDisk(
     settingsDirectory,
     updatedToolchains,
-    overwriteSettings
+    updateToolchains
   );
 }
 
@@ -146,17 +143,17 @@ async function readExistingToolchainsFile(directory: string) {
 async function writeToolchainsFileToDisk(
   directory: string,
   settings: string,
-  overwriteSettings: boolean
+  updateToolchains: boolean
 ) {
   const location = path.join(directory, constants.MVN_TOOLCHAINS_FILE);
-  const settingsExists = fs.existsSync(location);
-  if (settingsExists && overwriteSettings) {
-    core.info(`Overwriting existing file ${location}`);
-  } else if (!settingsExists) {
-    core.info(`Writing to ${location}`);
+  const toolchainsExists = fs.existsSync(location);
+  if (toolchainsExists && updateToolchains) {
+    core.info(`Updating existing file ${location}`);
+  } else if (!toolchainsExists) {
+    core.info(`Creating file ${location}`);
   } else {
     core.info(
-      `Skipping generation of ${location} because file already exists and overwriting is not enabled`
+      `Skipping update of ${location} since file already exists and updating is not enabled`
     );
     return;
   }

src/util.ts

@@ -201,6 +201,55 @@ export function getGitHubHttpHeaders(): OutgoingHttpHeaders {
   return headers;
 }
 
+export const MAX_PAGINATION_PAGES = 1000;
+
+export function getNextPageUrlFromLinkHeader(
+  headers?: Record<string, string | string[] | undefined>
+): string | null {
+  if (!headers) {
+    return null;
+  }
+
+  const linkHeader = headers.link ?? headers.Link;
+  if (!linkHeader) {
+    return null;
+  }
+
+  const normalizedLinkHeader = Array.isArray(linkHeader)
+    ? linkHeader.join(',')
+    : linkHeader;
+
+  // Split into individual link-values and find the one with rel="next"
+  // RFC 8288 allows rel to appear anywhere among the parameters
+  const linkValues = normalizedLinkHeader.split(/,(?=\s*<)/);
+  for (const linkValue of linkValues) {
+    const urlMatch = linkValue.match(/<([^>]+)>/);
+    if (!urlMatch) continue;
+
+    const params = linkValue.slice(urlMatch[0].length);
+    // Use word boundary to match "next" as a standalone relation type
+    // RFC 8288 allows space-separated relation types like rel="next prev"
+    if (/;\s*rel="?[^"]*\bnext\b/i.test(params)) {
+      return urlMatch[1];
+    }
+  }
+
+  return null;
+}
+
+export function validatePaginationUrl(
+  url: string,
+  allowedOrigin: string
+): boolean {
+  try {
+    const parsed = new URL(url);
+    const allowed = new URL(allowedOrigin);
+    return parsed.origin === allowed.origin;
+  } catch {
+    return false;
+  }
+}
+
 // Rename archive to add extension because after downloading
 // archive does not contain extension type and it leads to some issues
 // on Windows runners without PowerShell Core.