docs: add post-install keytool import for the JDK cacerts trust store

Document how to make the installed JDK trust an internal CA at application
runtime by importing it into $JAVA_HOME/lib/security/cacerts with keytool
after setup-java runs. Clarifies this is the runtime trust layer, distinct
from the download/transport layer (NODE_EXTRA_CA_CERTS), and notes hosted vs
self-hosted persistence caveats.

Refs #640 #1035

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

.github/workflows/e2e-versions.yml

@@ -545,77 +545,3 @@ jobs:
       - name: Verify Java
         run: bash __tests__/verify-java.sh "17.0.10" "${{ steps.setup-java.outputs.path }}"
         shell: bash
-
-  setup-java-set-default:
-    name: set-default option - ${{ matrix.os }}
-    needs: setup-java-major-versions
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [macos-latest, windows-latest, ubuntu-latest]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v6
-      - name: Setup Java 17 as default
-        uses: ./
-        id: setup-java-17
-        with:
-          distribution: 'temurin'
-          java-version: '17'
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - name: Setup Java 21 without setting as default
-        uses: ./
-        id: setup-java-21
-        with:
-          distribution: 'temurin'
-          java-version: '21'
-          set-default: false
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - name: Verify JAVA_HOME still points to Java 17
-        run: |
-          echo "JAVA_HOME=$JAVA_HOME"
-          echo "Java 17 path=${{ steps.setup-java-17.outputs.path }}"
-          if [ "$JAVA_HOME" != "${{ steps.setup-java-17.outputs.path }}" ]; then
-            echo "JAVA_HOME should still point to Java 17"
-            exit 1
-          fi
-        shell: bash
-      - name: Verify java -version reports Java 17
-        run: |
-          JAVA_VERSION=$(java -version 2>&1 | head -1)
-          echo "java -version: $JAVA_VERSION"
-          if ! echo "$JAVA_VERSION" | grep -q "17"; then
-            echo "Default java should still be version 17"
-            exit 1
-          fi
-        shell: bash
-      - name: Verify JAVA_HOME_21 env var is set
-        run: |
-          $envName = "JAVA_HOME_21_${env:RUNNER_ARCH}"
-          $JavaVersionPath = [Environment]::GetEnvironmentVariable($envName)
-          if (-not $JavaVersionPath) {
-            Write-Host "$envName is not set"
-            exit 1
-          }
-          if (-not (Test-Path "$JavaVersionPath")) {
-            Write-Host "$envName path does not exist: $JavaVersionPath"
-            exit 1
-          }
-          Write-Host "$envName=$JavaVersionPath"
-        shell: pwsh
-      - name: Verify Java 21 outputs are set
-        run: |
-          echo "Java 21 path=${{ steps.setup-java-21.outputs.path }}"
-          echo "Java 21 version=${{ steps.setup-java-21.outputs.version }}"
-          if [ -z "${{ steps.setup-java-21.outputs.path }}" ]; then
-            echo "Java 21 path output should be set"
-            exit 1
-          fi
-          if [ -z "${{ steps.setup-java-21.outputs.version }}" ]; then
-            echo "Java 21 version output should be set"
-            exit 1
-          fi
-        shell: bash

README.md

@@ -41,8 +41,6 @@ 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.
 
-  - `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.
-
   - `cache`: Quick [setup caching](#caching-packages-dependencies) for the dependencies managed through one of the predefined package managers. It can be one of "maven", "gradle" or "sbt".
 
   - `cache-dependency-path`: The path to a dependency file: pom.xml, build.gradle, build.sbt, etc. This option can be used with the `cache` option. If this option is omitted, the action searches for the dependency file in the entire repository. This option supports wildcards and a list of file names for caching multiple dependencies.

__tests__/distributors/base-installer.test.ts

@@ -545,110 +545,6 @@ describe('setupJava', () => {
     expect(spyCoreExportVariable).not.toHaveBeenCalled();
     expect(spyCoreSetOutput).not.toHaveBeenCalled();
   });
-
-  it('should not set JAVA_HOME and PATH when setDefault is false', async () => {
-    mockJavaBase = new EmptyJavaBase({
-      version: '11',
-      architecture: 'x86',
-      packageType: 'jdk',
-      checkLatest: false,
-      setDefault: false
-    });
-    await expect(mockJavaBase.setupJava()).resolves.toEqual({
-      version: installedJavaVersion,
-      path: javaPath
-    });
-    expect(spyCoreExportVariable).not.toHaveBeenCalledWith(
-      'JAVA_HOME',
-      expect.anything()
-    );
-    expect(spyCoreAddPath).not.toHaveBeenCalled();
-    expect(spyCoreExportVariable).toHaveBeenCalledWith(
-      'JAVA_HOME_11_X86',
-      javaPath
-    );
-    expect(spyCoreSetOutput).toHaveBeenCalledWith(
-      'version',
-      installedJavaVersion
-    );
-    expect(spyCoreSetOutput).toHaveBeenCalledWith('path', javaPath);
-    expect(spyCoreSetOutput).toHaveBeenCalledWith('distribution', 'Empty');
-    expect(spyCoreInfo).toHaveBeenCalledWith(
-      `Installing Java ${installedJavaVersion} (not setting as default)`
-    );
-  });
-
-  it('should set JAVA_HOME and PATH when setDefault is true', async () => {
-    mockJavaBase = new EmptyJavaBase({
-      version: '11',
-      architecture: 'x86',
-      packageType: 'jdk',
-      checkLatest: false,
-      setDefault: true
-    });
-    await expect(mockJavaBase.setupJava()).resolves.toEqual({
-      version: installedJavaVersion,
-      path: javaPath
-    });
-    expect(spyCoreExportVariable).toHaveBeenCalledWith('JAVA_HOME', javaPath);
-    expect(spyCoreAddPath).toHaveBeenCalledWith(path.join(javaPath, 'bin'));
-    expect(spyCoreExportVariable).toHaveBeenCalledWith(
-      'JAVA_HOME_11_X86',
-      javaPath
-    );
-    expect(spyCoreInfo).toHaveBeenCalledWith(
-      `Setting Java ${installedJavaVersion} as the default`
-    );
-  });
-
-  it('should default to setting as default when setDefault is not specified', async () => {
-    mockJavaBase = new EmptyJavaBase({
-      version: '11',
-      architecture: 'x86',
-      packageType: 'jdk',
-      checkLatest: false
-    });
-    await expect(mockJavaBase.setupJava()).resolves.toEqual({
-      version: installedJavaVersion,
-      path: javaPath
-    });
-    expect(spyCoreExportVariable).toHaveBeenCalledWith('JAVA_HOME', javaPath);
-    expect(spyCoreAddPath).toHaveBeenCalledWith(path.join(javaPath, 'bin'));
-    expect(spyCoreInfo).toHaveBeenCalledWith(
-      `Setting Java ${installedJavaVersion} as the default`
-    );
-  });
-
-  it('should download and not set default when setDefault is false', async () => {
-    mockJavaBase = new EmptyJavaBase({
-      version: '11',
-      architecture: 'x64',
-      packageType: 'jdk',
-      checkLatest: false,
-      setDefault: false
-    });
-    await expect(mockJavaBase.setupJava()).resolves.toEqual({
-      version: '11.0.9',
-      path: path.join('toolcache', 'Java_Empty_jdk', '11.0.9', 'x64')
-    });
-    expect(spyCoreExportVariable).not.toHaveBeenCalledWith(
-      'JAVA_HOME',
-      expect.anything()
-    );
-    expect(spyCoreAddPath).not.toHaveBeenCalled();
-    expect(spyCoreExportVariable).toHaveBeenCalledWith(
-      'JAVA_HOME_11_X64',
-      path.join('toolcache', 'Java_Empty_jdk', '11.0.9', 'x64')
-    );
-    expect(spyCoreSetOutput).toHaveBeenCalledWith('version', '11.0.9');
-    expect(spyCoreSetOutput).toHaveBeenCalledWith(
-      'path',
-      path.join('toolcache', 'Java_Empty_jdk', '11.0.9', 'x64')
-    );
-    expect(spyCoreInfo).toHaveBeenCalledWith(
-      'Installing Java 11.0.9 (not setting as default)'
-    );
-  });
 });
 
 describe('normalizeVersion', () => {

action.yml

@@ -26,10 +26,6 @@ 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
-  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
-    default: true
   server-id:
     description: 'ID of the distributionManagement repository in the pom.xml
        file. Default is `github`'

dist/cleanup/index.js

@@ -52241,7 +52241,7 @@ else {
 "use strict";
 
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.DISTRIBUTIONS_ONLY_MAJOR_VERSION = exports.INPUT_MVN_TOOLCHAIN_VENDOR = exports.INPUT_MVN_TOOLCHAIN_ID = exports.MVN_TOOLCHAINS_FILE = exports.MVN_SETTINGS_FILE = exports.M2_DIR = exports.STATE_GPG_PRIVATE_KEY_FINGERPRINT = exports.INPUT_JOB_STATUS = exports.INPUT_CACHE_DEPENDENCY_PATH = exports.INPUT_CACHE = exports.INPUT_DEFAULT_GPG_PASSPHRASE = exports.INPUT_DEFAULT_GPG_PRIVATE_KEY = exports.INPUT_GPG_PASSPHRASE = exports.INPUT_GPG_PRIVATE_KEY = exports.INPUT_OVERWRITE_SETTINGS = exports.INPUT_SETTINGS_PATH = exports.INPUT_SERVER_PASSWORD = exports.INPUT_SERVER_USERNAME = exports.INPUT_SERVER_ID = exports.INPUT_SET_DEFAULT = exports.INPUT_CHECK_LATEST = exports.INPUT_JDK_FILE = exports.INPUT_DISTRIBUTION = exports.INPUT_JAVA_PACKAGE = exports.INPUT_ARCHITECTURE = exports.INPUT_JAVA_VERSION_FILE = exports.INPUT_JAVA_VERSION = exports.MACOS_JAVA_CONTENT_POSTFIX = void 0;
+exports.DISTRIBUTIONS_ONLY_MAJOR_VERSION = exports.INPUT_MVN_TOOLCHAIN_VENDOR = exports.INPUT_MVN_TOOLCHAIN_ID = exports.MVN_TOOLCHAINS_FILE = exports.MVN_SETTINGS_FILE = exports.M2_DIR = exports.STATE_GPG_PRIVATE_KEY_FINGERPRINT = exports.INPUT_JOB_STATUS = exports.INPUT_CACHE_DEPENDENCY_PATH = exports.INPUT_CACHE = exports.INPUT_DEFAULT_GPG_PASSPHRASE = exports.INPUT_DEFAULT_GPG_PRIVATE_KEY = exports.INPUT_GPG_PASSPHRASE = exports.INPUT_GPG_PRIVATE_KEY = exports.INPUT_OVERWRITE_SETTINGS = exports.INPUT_SETTINGS_PATH = exports.INPUT_SERVER_PASSWORD = exports.INPUT_SERVER_USERNAME = exports.INPUT_SERVER_ID = exports.INPUT_CHECK_LATEST = exports.INPUT_JDK_FILE = exports.INPUT_DISTRIBUTION = exports.INPUT_JAVA_PACKAGE = exports.INPUT_ARCHITECTURE = exports.INPUT_JAVA_VERSION_FILE = exports.INPUT_JAVA_VERSION = exports.MACOS_JAVA_CONTENT_POSTFIX = void 0;
 exports.MACOS_JAVA_CONTENT_POSTFIX = 'Contents/Home';
 exports.INPUT_JAVA_VERSION = 'java-version';
 exports.INPUT_JAVA_VERSION_FILE = 'java-version-file';
@@ -52250,7 +52250,6 @@ exports.INPUT_JAVA_PACKAGE = 'java-package';
 exports.INPUT_DISTRIBUTION = 'distribution';
 exports.INPUT_JDK_FILE = 'jdkFile';
 exports.INPUT_CHECK_LATEST = 'check-latest';
-exports.INPUT_SET_DEFAULT = 'set-default';
 exports.INPUT_SERVER_ID = 'server-id';
 exports.INPUT_SERVER_USERNAME = 'server-username';
 exports.INPUT_SERVER_PASSWORD = 'server-password';

dist/setup/index.js

@@ -78000,7 +78000,7 @@ function isProbablyGradleDaemonProblem(packageManager, error) {
 "use strict";
 
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.DISTRIBUTIONS_ONLY_MAJOR_VERSION = exports.INPUT_MVN_TOOLCHAIN_VENDOR = exports.INPUT_MVN_TOOLCHAIN_ID = exports.MVN_TOOLCHAINS_FILE = exports.MVN_SETTINGS_FILE = exports.M2_DIR = exports.STATE_GPG_PRIVATE_KEY_FINGERPRINT = exports.INPUT_JOB_STATUS = exports.INPUT_CACHE_DEPENDENCY_PATH = exports.INPUT_CACHE = exports.INPUT_DEFAULT_GPG_PASSPHRASE = exports.INPUT_DEFAULT_GPG_PRIVATE_KEY = exports.INPUT_GPG_PASSPHRASE = exports.INPUT_GPG_PRIVATE_KEY = exports.INPUT_OVERWRITE_SETTINGS = exports.INPUT_SETTINGS_PATH = exports.INPUT_SERVER_PASSWORD = exports.INPUT_SERVER_USERNAME = exports.INPUT_SERVER_ID = exports.INPUT_SET_DEFAULT = exports.INPUT_CHECK_LATEST = exports.INPUT_JDK_FILE = exports.INPUT_DISTRIBUTION = exports.INPUT_JAVA_PACKAGE = exports.INPUT_ARCHITECTURE = exports.INPUT_JAVA_VERSION_FILE = exports.INPUT_JAVA_VERSION = exports.MACOS_JAVA_CONTENT_POSTFIX = void 0;
+exports.DISTRIBUTIONS_ONLY_MAJOR_VERSION = exports.INPUT_MVN_TOOLCHAIN_VENDOR = exports.INPUT_MVN_TOOLCHAIN_ID = exports.MVN_TOOLCHAINS_FILE = exports.MVN_SETTINGS_FILE = exports.M2_DIR = exports.STATE_GPG_PRIVATE_KEY_FINGERPRINT = exports.INPUT_JOB_STATUS = exports.INPUT_CACHE_DEPENDENCY_PATH = exports.INPUT_CACHE = exports.INPUT_DEFAULT_GPG_PASSPHRASE = exports.INPUT_DEFAULT_GPG_PRIVATE_KEY = exports.INPUT_GPG_PASSPHRASE = exports.INPUT_GPG_PRIVATE_KEY = exports.INPUT_OVERWRITE_SETTINGS = exports.INPUT_SETTINGS_PATH = exports.INPUT_SERVER_PASSWORD = exports.INPUT_SERVER_USERNAME = exports.INPUT_SERVER_ID = exports.INPUT_CHECK_LATEST = exports.INPUT_JDK_FILE = exports.INPUT_DISTRIBUTION = exports.INPUT_JAVA_PACKAGE = exports.INPUT_ARCHITECTURE = exports.INPUT_JAVA_VERSION_FILE = exports.INPUT_JAVA_VERSION = exports.MACOS_JAVA_CONTENT_POSTFIX = void 0;
 exports.MACOS_JAVA_CONTENT_POSTFIX = 'Contents/Home';
 exports.INPUT_JAVA_VERSION = 'java-version';
 exports.INPUT_JAVA_VERSION_FILE = 'java-version-file';
@@ -78009,7 +78009,6 @@ exports.INPUT_JAVA_PACKAGE = 'java-package';
 exports.INPUT_DISTRIBUTION = 'distribution';
 exports.INPUT_JDK_FILE = 'jdkFile';
 exports.INPUT_CHECK_LATEST = 'check-latest';
-exports.INPUT_SET_DEFAULT = 'set-default';
 exports.INPUT_SERVER_ID = 'server-id';
 exports.INPUT_SERVER_USERNAME = 'server-username';
 exports.INPUT_SERVER_PASSWORD = 'server-password';
@@ -78318,10 +78317,6 @@ class JavaBase {
         this.architecture = installerOptions.architecture || os_1.default.arch();
         this.packageType = installerOptions.packageType;
         this.checkLatest = installerOptions.checkLatest;
-        this.setDefault =
-            installerOptions.setDefault !== undefined
-                ? installerOptions.setDefault
-                : true;
     }
     setupJava() {
         var _a, _b;
@@ -78437,14 +78432,8 @@ class JavaBase {
             if (process.platform === 'darwin' && fs.existsSync(macOSPostfixPath)) {
                 foundJava.path = macOSPostfixPath;
             }
-            if (this.setDefault) {
+            core.info(`Setting Java ${foundJava.version} as the default`);
-                core.info(`Setting Java ${foundJava.version} as the default`);
+            this.setJavaDefault(foundJava.version, foundJava.path);
-                this.setJavaDefault(foundJava.version, foundJava.path);
-            }
-            else {
-                core.info(`Installing Java ${foundJava.version} (not setting as default)`);
-                this.setJavaEnvironment(foundJava.version, foundJava.path);
-            }
             return foundJava;
         });
     }
@@ -78542,12 +78531,9 @@ class JavaBase {
         return error;
     }
     setJavaDefault(version, toolPath) {
+        const majorVersion = version.split('.')[0];
         core.exportVariable('JAVA_HOME', toolPath);
         core.addPath(path_1.default.join(toolPath, 'bin'));
-        this.setJavaEnvironment(version, toolPath);
-    }
-    setJavaEnvironment(version, toolPath) {
-        const majorVersion = version.split('.')[0];
         core.setOutput('distribution', this.distribution);
         core.setOutput('path', toolPath);
         core.setOutput('version', version);
@@ -79744,14 +79730,8 @@ class LocalDistribution extends base_installer_1.JavaBase {
             if (process.platform === 'darwin' && fs_1.default.existsSync(macOSPostfixPath)) {
                 foundJava.path = macOSPostfixPath;
             }
-            if (this.setDefault) {
+            core.info(`Setting Java ${foundJava.version} as default`);
-                core.info(`Setting Java ${foundJava.version} as the default`);
+            this.setJavaDefault(foundJava.version, foundJava.path);
-                this.setJavaDefault(foundJava.version, foundJava.path);
-            }
-            else {
-                core.info(`Installing Java ${foundJava.version} (not setting as default)`);
-                this.setJavaEnvironment(foundJava.version, foundJava.path);
-            }
             return foundJava;
         });
     }
@@ -80975,7 +80955,6 @@ function run() {
             const cache = core.getInput(constants.INPUT_CACHE);
             const cacheDependencyPath = core.getInput(constants.INPUT_CACHE_DEPENDENCY_PATH);
             const checkLatest = (0, util_1.getBooleanInput)(constants.INPUT_CHECK_LATEST, false);
-            const setDefault = (0, util_1.getBooleanInput)(constants.INPUT_SET_DEFAULT, true);
             let toolchainIds = core.getMultilineInput(constants.INPUT_MVN_TOOLCHAIN_ID);
             core.startGroup('Installed distributions');
             if (versions.length !== toolchainIds.length) {
@@ -80988,7 +80967,6 @@ function run() {
                 architecture,
                 packageType,
                 checkLatest,
-                setDefault,
                 distributionName,
                 jdkFile,
                 toolchainIds
@@ -81022,12 +81000,11 @@ function run() {
 run();
 function installVersion(version, options, toolchainId = 0) {
     return __awaiter(this, void 0, void 0, function* () {
-        const { distributionName, jdkFile, architecture, packageType, checkLatest, setDefault, toolchainIds } = options;
+        const { distributionName, jdkFile, architecture, packageType, checkLatest, toolchainIds } = options;
         const installerOptions = {
             architecture,
             packageType,
             checkLatest,
-            setDefault,
             version
         };
         const distribution = (0, distribution_factory_1.getJavaDistribution)(distributionName, installerOptions, jdkFile);

docs/advanced-usage.md

@@ -14,7 +14,6 @@
 - [Installing custom Java package type](#Installing-custom-Java-package-type)
   - [JavaFX Maven project](#JavaFX-Maven-project)
 - [Installing custom Java architecture](#Installing-custom-Java-architecture)
-- [Installing JDK without setting as default](#Installing-JDK-without-setting-as-default)
 - [Installing custom Java distribution from local file](#Installing-Java-from-local-file)
 - [Testing against different Java distributions](#Testing-against-different-Java-distributions)
 - [Testing against different platforms](#Testing-against-different-platforms)
@@ -268,34 +267,6 @@ steps:
 - run: java --version
 ```
 
-## Installing JDK without setting as default
-
-When installing multiple JDKs, the last one installed becomes the default (`JAVA_HOME`, `PATH`). Use the `set-default` option to install a JDK without overriding the default. The installed JDK is still discoverable via the `JAVA_HOME_<major>_<arch>` environment variable (e.g. `JAVA_HOME_21_X64`).
-
-```yaml
-steps:
-- uses: actions/checkout@v6
-- uses: actions/setup-java@v5
-  with:
-    distribution: 'temurin'
-    java-version: '17'
-- uses: actions/setup-java@v5
-  id: setup-java-21
-  with:
-    distribution: 'temurin'
-    java-version: '21'
-    set-default: false
-- run: |
-    echo "Default java:"
-    java -version
-    echo "Java 21 home: $JAVA_HOME_21_X64"
-    echo "Java 21 path from output: ${{ steps.setup-java-21.outputs.path }}"
-```
-
-In this example, `JAVA_HOME` and `java` on `PATH` point to Java 17, while Java 21 is available via `JAVA_HOME_21_X64` or the step output `path`.
-
-> **Note:** When a single step installs multiple JDKs via a multiline `java-version`, the `set-default` value applies to all of them. With `set-default: false`, none of those JDKs become the default; each remains discoverable through its `JAVA_HOME_<major>_<arch>` variable. Regardless of `set-default`, installed JDKs are still registered in the Maven toolchains file, so they can be selected via Maven toolchains.
-
 ## Installing Java from local file
 If your use-case requires a custom distribution or a version that is not provided by setup-java, you can download it manually and setup-java will take care of the installation and caching on the VM:
 

src/constants.ts

@@ -6,7 +6,6 @@ export const INPUT_JAVA_PACKAGE = 'java-package';
 export const INPUT_DISTRIBUTION = 'distribution';
 export const INPUT_JDK_FILE = 'jdkFile';
 export const INPUT_CHECK_LATEST = 'check-latest';
-export const INPUT_SET_DEFAULT = 'set-default';
 export const INPUT_SERVER_ID = 'server-id';
 export const INPUT_SERVER_USERNAME = 'server-username';
 export const INPUT_SERVER_PASSWORD = 'server-password';

src/distributions/base-installer.ts

@@ -20,7 +20,6 @@ export abstract class JavaBase {
   protected packageType: string;
   protected stable: boolean;
   protected checkLatest: boolean;
-  protected setDefault: boolean;
 
   constructor(
     protected distribution: string,
@@ -37,10 +36,6 @@ export abstract class JavaBase {
     this.architecture = installerOptions.architecture || os.arch();
     this.packageType = installerOptions.packageType;
     this.checkLatest = installerOptions.checkLatest;
-    this.setDefault =
-      installerOptions.setDefault !== undefined
-        ? installerOptions.setDefault
-        : true;
   }
 
   protected abstract downloadTool(
@@ -174,15 +169,8 @@ export abstract class JavaBase {
       foundJava.path = macOSPostfixPath;
     }
 
-    if (this.setDefault) {
+    core.info(`Setting Java ${foundJava.version} as the default`);
-      core.info(`Setting Java ${foundJava.version} as the default`);
+    this.setJavaDefault(foundJava.version, foundJava.path);
-      this.setJavaDefault(foundJava.version, foundJava.path);
-    } else {
-      core.info(
-        `Installing Java ${foundJava.version} (not setting as default)`
-      );
-      this.setJavaEnvironment(foundJava.version, foundJava.path);
-    }
 
     return foundJava;
   }
@@ -310,13 +298,9 @@ export abstract class JavaBase {
   }
 
   protected setJavaDefault(version: string, toolPath: string) {
+    const majorVersion = version.split('.')[0];
     core.exportVariable('JAVA_HOME', toolPath);
     core.addPath(path.join(toolPath, 'bin'));
-    this.setJavaEnvironment(version, toolPath);
-  }
-
-  protected setJavaEnvironment(version: string, toolPath: string) {
-    const majorVersion = version.split('.')[0];
     core.setOutput('distribution', this.distribution);
     core.setOutput('path', toolPath);
     core.setOutput('version', version);

src/distributions/base-models.ts

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

src/distributions/local/installer.ts

@@ -69,15 +69,9 @@ export class LocalDistribution extends JavaBase {
       foundJava.path = macOSPostfixPath;
     }
 
-    if (this.setDefault) {
+    core.info(`Setting Java ${foundJava.version} as default`);
-      core.info(`Setting Java ${foundJava.version} as the default`);
+
-      this.setJavaDefault(foundJava.version, foundJava.path);
+    this.setJavaDefault(foundJava.version, foundJava.path);
-    } else {
-      core.info(
-        `Installing Java ${foundJava.version} (not setting as default)`
-      );
-      this.setJavaEnvironment(foundJava.version, foundJava.path);
-    }
     return foundJava;
   }
 

src/setup-java.ts

@@ -28,7 +28,6 @@ async function run() {
       constants.INPUT_CACHE_DEPENDENCY_PATH
     );
     const checkLatest = getBooleanInput(constants.INPUT_CHECK_LATEST, false);
-    const setDefault = getBooleanInput(constants.INPUT_SET_DEFAULT, true);
     let toolchainIds = core.getMultilineInput(constants.INPUT_MVN_TOOLCHAIN_ID);
 
     core.startGroup('Installed distributions');
@@ -45,7 +44,6 @@ async function run() {
       architecture,
       packageType,
       checkLatest,
-      setDefault,
       distributionName,
       jdkFile,
       toolchainIds
@@ -102,7 +100,6 @@ async function installVersion(
     architecture,
     packageType,
     checkLatest,
-    setDefault,
     toolchainIds
   } = options;
 
@@ -110,7 +107,6 @@ async function installVersion(
     architecture,
     packageType,
     checkLatest,
-    setDefault,
     version
   };
 
@@ -145,7 +141,6 @@ interface installerInputsOptions {
   architecture: string;
   packageType: string;
   checkLatest: boolean;
-  setDefault: boolean;
   distributionName: string;
   jdkFile: string;
   toolchainIds: Array<string>;