johnoliver · johnoliver · Jun 3, 2026 · Jun 3, 2026 · Jun 3, 2026 · Jun 3, 2026
diff --git a/__tests__/distributors/adopt-installer.test.ts b/__tests__/distributors/adopt-installer.test.ts
@@ -14,6 +14,7 @@ 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');
@@ -26,6 +27,8 @@ describe('getAvailableVersions', () => {
     // Mock core.error to suppress error logs
     spyCoreError = jest.spyOn(core, 'error');
     spyCoreError.mockImplementation(() => {});
+    spyCoreWarning = jest.spyOn(core, 'warning');
+    spyCoreWarning.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -136,22 +139,19 @@ 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(
@@ -166,6 +166,33 @@ 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://example.com/releases?page=2';
+    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([

diff --git a/__tests__/distributors/semeru-installer.test.ts b/__tests__/distributors/semeru-installer.test.ts
@@ -9,6 +9,7 @@ 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 +21,8 @@ describe('getAvailableVersions', () => {
     // Mock core.error to suppress error logs
     spyCoreError = jest.spyOn(core, 'error');
     spyCoreError.mockImplementation(() => {});
+    spyCoreWarning = jest.spyOn(core, 'warning');
+    spyCoreWarning.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -82,22 +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({
@@ -109,6 +109,30 @@ 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://example.com/releases?page=2';
+    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([

diff --git a/__tests__/distributors/temurin-installer.test.ts b/__tests__/distributors/temurin-installer.test.ts
@@ -12,6 +12,7 @@ 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');
@@ -23,6 +24,8 @@ describe('getAvailableVersions', () => {
     // Mock core.error to suppress error logs
     spyCoreError = jest.spyOn(core, 'error');
     spyCoreError.mockImplementation(() => {});
+    spyCoreWarning = jest.spyOn(core, 'warning');
+    spyCoreWarning.mockImplementation(() => {});
   });
 
   afterEach(() => {
@@ -93,22 +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(
@@ -123,6 +123,33 @@ 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://example.com/releases?page=2';
+    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([

diff --git a/__tests__/util.test.ts b/__tests__/util.test.ts
@@ -4,6 +4,7 @@ import * as fs from 'fs';
 import * as path from 'path';
 import {
   convertVersionToSemver,
+  getNextPageUrlFromLinkHeader,
   getVersionFromFileContent,
   isVersionSatisfies,
   isCacheFeatureAvailable,
@@ -85,6 +86,27 @@ 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://example.com/last?page=5>; rel="last"'}, null],
+    [undefined, null]
+  ])('returns %s -> %s', (headers, expected) => {
+    expect(getNextPageUrlFromLinkHeader(headers)).toBe(expected);
+  });
+});
+
 describe('getVersionFromFileContent', () => {
   describe('.sdkmanrc', () => {
     it.each([

diff --git a/dist/cleanup/index.js b/dist/cleanup/index.js
@@ -51888,7 +51888,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
     return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.renameWinArchive = exports.getGitHubHttpHeaders = exports.convertVersionToSemver = exports.getVersionFromFileContent = exports.isCacheFeatureAvailable = exports.isGhes = exports.isJobStatusSuccess = exports.getToolcachePath = exports.isVersionSatisfies = exports.getDownloadArchiveExtension = exports.extractJdkFile = exports.getVersionFromToolcachePath = exports.getBooleanInput = exports.getTempDir = void 0;
+exports.renameWinArchive = exports.getNextPageUrlFromLinkHeader = exports.getGitHubHttpHeaders = exports.convertVersionToSemver = exports.getVersionFromFileContent = exports.isCacheFeatureAvailable = exports.isGhes = exports.isJobStatusSuccess = exports.getToolcachePath = exports.isVersionSatisfies = exports.getDownloadArchiveExtension = exports.extractJdkFile = exports.getVersionFromToolcachePath = exports.getBooleanInput = exports.getTempDir = void 0;
 const os_1 = __importDefault(__nccwpck_require__(22037));
 const path_1 = __importDefault(__nccwpck_require__(71017));
 const fs = __importStar(__nccwpck_require__(57147));
@@ -52055,6 +52055,22 @@ function getGitHubHttpHeaders() {
     return headers;
 }
 exports.getGitHubHttpHeaders = getGitHubHttpHeaders;
+function getNextPageUrlFromLinkHeader(headers) {
+    var _a, _b;
+    if (!headers) {
+        return null;
+    }
+    const linkHeader = (_a = headers.link) !== null && _a !== void 0 ? _a : headers.Link;
+    if (!linkHeader) {
+        return null;
+    }
+    const normalizedLinkHeader = Array.isArray(linkHeader)
+        ? linkHeader.join(',')
+        : linkHeader;
+    const nextLinkMatch = normalizedLinkHeader.match(/<([^>]+)>\s*;\s*rel="?next"?/i);
+    return (_b = nextLinkMatch === null || nextLinkMatch === void 0 ? void 0 : nextLinkMatch[1]) !== null && _b !== void 0 ? _b : null;
+}
+exports.getNextPageUrlFromLinkHeader = getNextPageUrlFromLinkHeader;
 // 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.