Add force-download input

README.md

@@ -56,6 +56,8 @@ For more details,  see the full release notes on the [releases page](https://git
 
   - `check-latest`: Setting this option makes the action to check for the latest available version for the version spec.
 
+  - `force-download`: Set to `true` to always download Java and replace any matching version in the tool cache. This can help make builds reproducible when a runner image has modified a pre-installed JDK, such as its `cacerts` file. Default value: `false`.
+
   - `set-default`: Set to `false` to install a JDK without making it the default. When `false`, `JAVA_HOME` and `PATH` are not updated, but `JAVA_HOME_<major>_<arch>` is still set so the JDK remains discoverable. Default value: `true`. See [Installing JDK without setting as default](docs/advanced-usage.md#Installing-JDK-without-setting-as-default) for more details.
 
   - `problem-matcher`: Set to `false` to disable Java problem matcher annotations (compiler diagnostics and uncaught exceptions). Default value: `true`. See [Java problem matcher](docs/advanced-usage.md#java-problem-matcher-compiler-annotations) for details and annotation limits.

__tests__/distributors/base-installer.test.ts

@@ -443,6 +443,35 @@ describe('setupJava', () => {
     );
   });
 
+  it('should download java when force-download is enabled, even if the version is cached', async () => {
+    mockJavaBase = new EmptyJavaBase({
+      version: actualJavaVersion,
+      architecture: 'x86',
+      packageType: 'jdk',
+      checkLatest: false,
+      forceDownload: true
+    });
+    const findInToolcache = jest.fn(() => ({
+      version: actualJavaVersion,
+      path: javaPathInstalled
+    }));
+    mockJavaBase['findInToolcache'] = findInToolcache;
+
+    await expect(mockJavaBase.setupJava()).resolves.toEqual({
+      version: actualJavaVersion,
+      path: javaPathInstalled
+    });
+
+    expect(findInToolcache).not.toHaveBeenCalled();
+    expect(spyCoreInfo).toHaveBeenCalledWith('Trying to download...');
+    expect(spyCoreInfo).toHaveBeenCalledWith(
+      `Java ${actualJavaVersion} was downloaded`
+    );
+    expect(spyCoreInfo).not.toHaveBeenCalledWith(
+      `Resolved Java ${actualJavaVersion} from tool-cache`
+    );
+  });
+
   it.each([
     [
       {

__tests__/distributors/local-installer.test.ts

@@ -208,6 +208,29 @@ describe('setupJava', () => {
     );
   });
 
+  it('java is unpacked from jdkfile when force-download is enabled', async () => {
+    const inputs = {
+      version: actualJavaVersion,
+      architecture: 'x86',
+      packageType: 'jdk',
+      checkLatest: false,
+      forceDownload: true
+    };
+
+    mockJavaBase = new LocalDistribution(inputs, expectedJdkFile);
+    await expect(mockJavaBase.setupJava()).resolves.toEqual({
+      version: actualJavaVersion,
+      path: javaPath
+    });
+
+    expect(spyGetToolcachePath).not.toHaveBeenCalled();
+    expect(spyUtilsExtractJdkFile).toHaveBeenCalledWith(expectedJdkFile);
+    expect(spyTcCacheDir).toHaveBeenCalled();
+    expect(spyCoreInfo).not.toHaveBeenCalledWith(
+      `Resolved Java ${actualJavaVersion} from tool-cache`
+    );
+  });
+
   it("java is resolved from toolcache, jdkfile doesn't exist", async () => {
     const inputs = {
       version: actualJavaVersion,

action.yml

@@ -30,6 +30,10 @@ inputs:
     description: 'Set this option if you want the action to check for the latest available version that satisfies the version spec'
     required: false
     default: false
+  force-download:
+    description: 'Set this option to always download Java and replace any matching version in the tool cache'
+    required: false
+    default: false
   set-default:
     description: 'Set this option to false if you want to install a JDK but not make it the default. When false, JAVA_HOME and PATH are not updated, but JAVA_HOME_<major>_<arch> is still set.'
     required: false

src/constants.ts

@@ -7,6 +7,7 @@ export const INPUT_DISTRIBUTION = 'distribution';
 export const INPUT_JDK_FILE = 'jdk-file';
 export const INPUT_JDK_FILE_DEPRECATED = 'jdkFile';
 export const INPUT_CHECK_LATEST = 'check-latest';
+export const INPUT_FORCE_DOWNLOAD = 'force-download';
 export const INPUT_SET_DEFAULT = 'set-default';
 export const INPUT_PROBLEM_MATCHER = 'problem-matcher';
 export const INPUT_VERIFY_SIGNATURE = 'verify-signature';

src/distributions/base-installer.ts

@@ -25,6 +25,7 @@ export abstract class JavaBase {
   protected stable: boolean;
   protected latest: boolean;
   protected checkLatest: boolean;
+  protected forceDownload: boolean;
   protected setDefault: boolean;
   protected verifySignature: boolean;
   protected verifySignaturePublicKey: string | undefined;
@@ -46,6 +47,7 @@ export abstract class JavaBase {
     this.architecture = installerOptions.architecture || os.arch();
     this.packageType = installerOptions.packageType;
     this.checkLatest = installerOptions.checkLatest;
+    this.forceDownload = installerOptions.forceDownload ?? false;
     this.setDefault =
       installerOptions.setDefault !== undefined
         ? installerOptions.setDefault
@@ -68,7 +70,7 @@ export abstract class JavaBase {
       );
     }
 
-    let foundJava = this.findInToolcache();
+    let foundJava = this.forceDownload ? null : this.findInToolcache();
     if (foundJava && !this.checkLatest && !this.latest) {
       core.info(`Resolved Java ${foundJava.version} from tool-cache`);
     } else {
@@ -91,7 +93,10 @@ export abstract class JavaBase {
           }
           const javaRelease = await this.findPackageForDownload(this.version);
           core.info(`Resolved latest version as ${javaRelease.version}`);
-          if (foundJava?.version === javaRelease.version) {
+          if (
+            !this.forceDownload &&
+            foundJava?.version === javaRelease.version
+          ) {
             core.info(`Resolved Java ${foundJava.version} from tool-cache`);
           } else {
             core.info('Trying to download...');

src/distributions/base-models.ts

@@ -3,6 +3,7 @@ export interface JavaInstallerOptions {
   architecture: string;
   packageType: string;
   checkLatest: boolean;
+  forceDownload?: boolean;
   setDefault?: boolean;
   verifySignature?: boolean;
   verifySignaturePublicKey?: string;

src/distributions/local/installer.ts

@@ -28,7 +28,7 @@ export class LocalDistribution extends JavaBase {
       );
     }
 
-    let foundJava = this.findInToolcache();
+    let foundJava = this.forceDownload ? null : this.findInToolcache();
 
     if (foundJava) {
       core.info(`Resolved Java ${foundJava.version} from tool-cache`);

src/setup-java.ts

@@ -29,6 +29,10 @@ async function run() {
       constants.INPUT_CACHE_DEPENDENCY_PATH
     );
     const checkLatest = getBooleanInput(constants.INPUT_CHECK_LATEST, false);
+    const forceDownload = getBooleanInput(
+      constants.INPUT_FORCE_DOWNLOAD,
+      false
+    );
     const setDefault = getBooleanInput(constants.INPUT_SET_DEFAULT, true);
     const verifySignature = getBooleanInput(
       constants.INPUT_VERIFY_SIGNATURE,
@@ -83,6 +87,7 @@ async function run() {
         architecture,
         packageType,
         checkLatest,
+        forceDownload,
         setDefault,
         verifySignature,
         verifySignaturePublicKey,
@@ -102,6 +107,7 @@ async function run() {
         architecture,
         packageType,
         checkLatest,
+        forceDownload,
         setDefault,
         verifySignature,
         verifySignaturePublicKey,
@@ -159,6 +165,7 @@ async function installVersion(
     architecture,
     packageType,
     checkLatest,
+    forceDownload,
     setDefault,
     verifySignature,
     verifySignaturePublicKey,
@@ -169,6 +176,7 @@ async function installVersion(
     architecture,
     packageType,
     checkLatest,
+    forceDownload,
     setDefault,
     verifySignature,
     verifySignaturePublicKey,
@@ -212,6 +220,7 @@ interface installerInputsOptions {
   architecture: string;
   packageType: string;
   checkLatest: boolean;
+  forceDownload: boolean;
   setDefault: boolean;
   verifySignature: boolean;
   verifySignaturePublicKey: string | undefined;