Address Copilot review feedback for Kona distribution

- Sort matching releases by semver descending so range versions (e.g. >=17) resolve to the newest matching Kona JDK instead of the lowest - Rename downloaded archive on Windows before extraction (renameWinArchive) to avoid extraction failures - Import semver for version sorting Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Merge branch 'main' into support-kona-jdk
2026-10-15 15:14:53 +00:00 · 2026-07-07 10:14:58 -04:00 · 2026-07-07 10:09:12 -04:00 · 2026-07-07 00:01:31 -04:00 · 2026-07-06 13:45:36 -04:00 · 2026-07-06 13:35:02 -04:00
55 changed files with 4526 additions and 330 deletions
@@ -5,5 +5,6 @@ Describe your changes.
 Add link to the related issue.

 **Check list:**
+- [ ] Ran `npm run check` locally (format, lint, build, test) and all checks pass.
 - [ ] Mark if documentation changes are required.
 - [ ] Mark if tests were added or updated to cover the changes.
@@ -11,6 +11,9 @@ on:
    paths-ignore:
      - '**.md'

+permissions:
+  contents: read
+
 jobs:
  call-basic-validation:
    name: Basic validation
@@ -11,6 +11,9 @@ on:
      - '**.md'
  workflow_dispatch:

+permissions:
+  contents: read
+
 jobs:
  call-check-dist:
    name: Check dist/
@@ -8,6 +8,8 @@ on:
  schedule:
    - cron: '0 3 * * 0'

+permissions: {}
+
 jobs:
  call-codeQL-analysis:
    permissions:
@@ -11,6 +11,9 @@ on:
    paths-ignore:
      - '**.md'

+permissions:
+  contents: read
+
 defaults:
  run:
    shell: bash
@@ -25,6 +28,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Run setup-java with the cache for gradle
        uses: ./
        id: setup-java
@@ -52,6 +57,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Run setup-java with the cache for gradle
        uses: ./
        id: setup-java
@@ -77,6 +84,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Run setup-java with the cache for gradle
        uses: ./
        id: setup-java
@@ -11,6 +11,9 @@ on:
    paths-ignore:
      - '**.md'

+permissions:
+  contents: read
+
 defaults:
  run:
    shell: bash
@@ -25,6 +28,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Run setup-java with the cache for gradle
        uses: ./
        id: setup-java
@@ -51,6 +56,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Run setup-java with the cache for gradle
        uses: ./
        id: setup-java
@@ -74,6 +81,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Run setup-java with the cache for maven
        uses: ./
        id: setup-java
@@ -98,6 +107,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Run setup-java with the cache for maven
        uses: ./
        id: setup-java
@@ -125,6 +136,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Run setup-java with the cache for sbt
        uses: ./
        id: setup-java
@@ -175,6 +188,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Run setup-java with the cache for sbt
        uses: ./
        id: setup-java
@@ -11,6 +11,9 @@ on:
    paths-ignore:
      - '**.md'

+permissions:
+  contents: read
+
 jobs:
  setup-java-local-file-adopt:
    name: Validate installation from local file Adopt
@@ -22,6 +25,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Download Adopt OpenJDK file
        run: |
          if ($IsLinux) {
@@ -46,7 +51,9 @@ jobs:
          java-version: '11.0.0-ea'
          architecture: x64
      - name: Verify Java version
-        run: bash __tests__/verify-java.sh "11.0.10" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "11.0.10" "$JAVA_PATH"
        shell: bash

  setup-java-local-file-zulu:
@@ -59,6 +66,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Download Zulu OpenJDK file
        run: |
          if ($IsLinux) {
@@ -83,7 +92,9 @@ jobs:
          java-version: '11.0.0-ea'
          architecture: x64
      - name: Verify Java version
-        run: bash __tests__/verify-java.sh "11.0" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "11.0" "$JAVA_PATH"
        shell: bash

  setup-java-local-file-temurin:
@@ -96,6 +107,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Download Eclipse Temurin file
        run: |
          if ($IsLinux) {
@@ -120,5 +133,7 @@ jobs:
          java-version: '11.0.0-ea'
          architecture: x64
      - name: Verify Java version
-        run: bash __tests__/verify-java.sh "11.0.12" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "11.0.12" "$JAVA_PATH"
        shell: bash
@@ -11,6 +11,9 @@ on:
    paths-ignore:
      - '**.md'

+permissions:
+  contents: read
+
 defaults:
  run:
    shell: pwsh
@@ -26,6 +29,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -61,6 +66,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Create fake settings.xml
        run: |
          $xmlDirectory = Join-Path $HOME ".m2"
@@ -97,6 +104,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Create fake settings.xml
        run: |
          $xmlDirectory = Join-Path $HOME ".m2"
@@ -134,6 +143,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -13,9 +13,13 @@ on:
  schedule:
    - cron: '0 */12 * * *'
  workflow_dispatch:
+
+permissions:
+  contents: read
+
 jobs:
  setup-java-major-versions:
-    name: ${{ matrix.distribution }} ${{ matrix.version }} (jdk-x64) - ${{ matrix.os }}
+    name: ${{ matrix.distribution }} ${{ matrix.version }} (jdk-${{ contains(matrix.os, 'macos') && !contains(matrix.os, 'intel') && 'arm64' || 'x64' }}) - ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
@@ -32,7 +36,8 @@ jobs:
            'corretto',
            'dragonwell',
            'sapmachine',
-            'jetbrains'
+            'jetbrains',
+            'kona'
          ] # internally 'adopt-hotspot' is the same as 'adopt'
        version: ['21', '11', '17']
        exclude:
@@ -74,6 +79,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -83,14 +90,17 @@ jobs:
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "${{ matrix.version }}" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_VERSION: ${{ matrix.version }}
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "$JAVA_VERSION" "$JAVA_PATH"
        shell: bash

  setup-java-alpine-linux:
-    name: ${{ matrix.distribution }} ${{ matrix.version }} (jdk-x64) - alpine-linux - ${{ matrix.os }}
+    name: ${{ matrix.distribution }} ${{ matrix.version }} (jdk-${{ contains(matrix.os, 'macos') && !contains(matrix.os, 'intel') && 'arm64' || 'x64' }}) - alpine-linux - ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    container:
-      image: alpine:latest
+      image: alpine:3.21
    strategy:
      fail-fast: false
      matrix:
@@ -100,6 +110,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Install bash
        run: apk add --no-cache bash
      - name: setup-java
@@ -109,11 +121,14 @@ jobs:
          java-version: ${{ matrix.version }}
          distribution: ${{ matrix.distribution }}
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "${{ matrix.version }}" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_VERSION: ${{ matrix.version }}
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "$JAVA_VERSION" "$JAVA_PATH"
        shell: bash

  setup-java-major-minor-versions:
-    name: ${{ matrix.distribution }} ${{ matrix.version }} (jdk-x64) - ${{ matrix.os }}
+    name: ${{ matrix.distribution }} ${{ matrix.version }} (jdk-${{ contains(matrix.os, 'macos') && !contains(matrix.os, 'intel') && 'arm64' || 'x64' }}) - ${{ matrix.os }}
    needs: setup-java-major-versions
    runs-on: ${{ matrix.os }}
    strategy:
@@ -150,6 +165,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -157,10 +174,12 @@ jobs:
          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
        env:
+          JAVA_VERSION: ${{ matrix.version }}
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: bash __tests__/verify-java.sh "$JAVA_VERSION" "$JAVA_PATH"
+        shell: bash

  setup-java-check-latest:
    name: ${{ matrix.distribution }} ${{ matrix.version }} - check-latest flag - ${{ matrix.os }}
@@ -185,6 +204,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -195,7 +216,9 @@ jobs:
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "11" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "11" "$JAVA_PATH"
        shell: bash

  setup-java-multiple-jdks:
@@ -221,6 +244,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -245,11 +270,13 @@ jobs:
          }
        shell: pwsh
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "17" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "17" "$JAVA_PATH"
        shell: bash

  setup-java-ea-versions-zulu:
-    name: zulu ${{ matrix.version }} (jdk-x64) - ${{ matrix.os }}
+    name: zulu ${{ matrix.version }} (jdk-${{ contains(matrix.os, 'macos') && !contains(matrix.os, 'intel') && 'arm64' || 'x64' }}) - ${{ matrix.os }}
    needs: setup-java-major-minor-versions
    runs-on: ${{ matrix.os }}
    strategy:
@@ -260,6 +287,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -267,11 +296,14 @@ jobs:
          java-version: ${{ matrix.version }}
          distribution: zulu
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "${{ matrix.version }}" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_VERSION: ${{ matrix.version }}
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "$JAVA_VERSION" "$JAVA_PATH"
        shell: bash

  setup-java-ea-versions-temurin:
-    name: temurin ${{ matrix.version }} (jdk-x64) - ${{ matrix.os }}
+    name: temurin ${{ matrix.version }} (jdk-${{ contains(matrix.os, 'macos') && !contains(matrix.os, 'intel') && 'arm64' || 'x64' }}) - ${{ matrix.os }}
    needs: setup-java-major-minor-versions
    runs-on: ${{ matrix.os }}
    strategy:
@@ -282,6 +314,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -289,11 +323,70 @@ jobs:
          java-version: ${{ matrix.version }}
          distribution: temurin
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "${{ matrix.version }}" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_VERSION: ${{ matrix.version }}
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "$JAVA_VERSION" "$JAVA_PATH"
+        shell: bash
+
+  setup-java-temurin-signature-verification:
+    name: temurin ${{ matrix.version }} signature verification - ${{ matrix.os }}
+    needs: setup-java-major-minor-versions
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-latest]
+        version: ['21', '17']
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
+      - name: setup-java with signature verification
+        uses: ./
+        id: setup-java
+        with:
+          java-version: ${{ matrix.version }}
+          distribution: temurin
+          verify-signature: true
+      - name: Verify Java
+        env:
+          JAVA_VERSION: ${{ matrix.version }}
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "$JAVA_VERSION" "$JAVA_PATH"
+        shell: bash
+
+  setup-java-microsoft-signature-verification:
+    name: microsoft ${{ matrix.version }} signature verification - ${{ matrix.os }}
+    needs: setup-java-major-minor-versions
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, windows-latest, ubuntu-latest]
+        version: ['21', '17']
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
+      - name: setup-java with signature verification
+        uses: ./
+        id: setup-java
+        with:
+          java-version: ${{ matrix.version }}
+          distribution: microsoft
+          verify-signature: true
+      - name: Verify Java
+        env:
+          JAVA_VERSION: ${{ matrix.version }}
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "$JAVA_VERSION" "$JAVA_PATH"
        shell: bash

  setup-java-ea-versions-sapmachine:
-    name: sapmachine ${{ matrix.version }} (jdk-x64) - ${{ matrix.os }}
+    name: sapmachine ${{ matrix.version }} (jdk-${{ contains(matrix.os, 'macos') && !contains(matrix.os, 'intel') && 'arm64' || 'x64' }}) - ${{ matrix.os }}
    needs: setup-java-major-minor-versions
    runs-on: ${{ matrix.os }}
    strategy:
@@ -304,6 +397,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -311,7 +406,10 @@ jobs:
          java-version: ${{ matrix.version }}
          distribution: sapmachine
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "${{ matrix.version }}" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_VERSION: ${{ matrix.version }}
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "$JAVA_VERSION" "$JAVA_PATH"
        shell: bash

  setup-java-custom-package-type:
@@ -391,6 +489,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -401,7 +501,10 @@ jobs:
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "${{ matrix.version }}" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_VERSION: ${{ matrix.version }}
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "$JAVA_VERSION" "$JAVA_PATH"
        shell: bash

  # Only Liberica and Zulu provide x86
@@ -419,6 +522,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: setup-java
        uses: ./
        id: setup-java
@@ -427,7 +532,10 @@ jobs:
          java-version: ${{ matrix.version }}
          architecture: 'x86'
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "${{ matrix.version }}" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_VERSION: ${{ matrix.version }}
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "$JAVA_VERSION" "$JAVA_PATH"
        shell: bash

  setup-java-version-both-version-inputs-presents:
@@ -442,6 +550,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Create .java-version file
        shell: bash
        run: echo "17" > .java-version
@@ -456,7 +566,9 @@ jobs:
          java-version: 11
          java-version-file: ${{matrix.java-version-file }}
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "11" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "11" "$JAVA_PATH"
        shell: bash

  setup-java-version-from-file-major-notation:
@@ -471,6 +583,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Create .java-version file
        shell: bash
        run: echo "11" > .java-version
@@ -484,7 +598,9 @@ jobs:
          distribution: ${{ matrix.distribution }}
          java-version-file: ${{matrix.java-version-file }}
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "11" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "11" "$JAVA_PATH"
        shell: bash

  setup-java-version-from-file-major-minor-patch-notation:
@@ -499,6 +615,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Create .java-version file
        shell: bash
        run: echo "17.0.10" > .java-version
@@ -512,7 +630,9 @@ jobs:
          distribution: ${{ matrix.distribution }}
          java-version-file: ${{matrix.java-version-file }}
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "17.0.10" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "17.0.10" "$JAVA_PATH"
        shell: bash

  setup-java-version-from-file-major-minor-patch-with-dist:
@@ -527,6 +647,8 @@ jobs:
    steps:
      - name: Checkout
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Create .java-version file
        shell: bash
        run: echo "openjdk64-17.0.10" > .java-version
@@ -543,5 +665,7 @@ jobs:
          distribution: ${{ matrix.distribution }}
          java-version-file: ${{matrix.java-version-file }}
      - name: Verify Java
-        run: bash __tests__/verify-java.sh "17.0.10" "${{ steps.setup-java.outputs.path }}"
+        env:
+          JAVA_PATH: ${{ steps.setup-java.outputs.path }}
+        run: bash __tests__/verify-java.sh "17.0.10" "$JAVA_PATH"
        shell: bash
@@ -9,6 +9,9 @@ on:
      - main
  workflow_dispatch:

+permissions:
+  contents: read
+
 jobs:
  call-licensed:
    name: Licensed
@@ -5,6 +5,8 @@ on:
    types: [released]
  workflow_dispatch:

+permissions: {}
+
 jobs:
  publish:
    runs-on: ubuntu-latest
@@ -16,6 +18,8 @@ jobs:
    steps:
      - name: Checking out
        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
      - name: Publish
        id: publish
        uses: actions/publish-immutable-action@v0.0.4
@@ -5,7 +5,12 @@ on:
    - cron: '0 3 * * 0'
  workflow_dispatch:

+permissions: {}
+
 jobs:
  call-update-configuration-files:
    name: Update configuration files
+    permissions:
+      contents: write # to push the branch with updated configuration files
+      pull-requests: write # to open/update the configuration update PR
    uses: actions/reusable-workflows/.github/workflows/update-config-files.yml@main
@@ -0,0 +1,48 @@
+name: Security analysis with zizmor
+
+on:
+  push:
+    branches:
+      - main
+      - releases/*
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+  workflow_dispatch:
+
+permissions: {}
+
+jobs:
+  zizmor:
+    name: Analyze workflows with zizmor
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      security-events: write # to upload SARIF results to code scanning
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v7
+        with:
+          persist-credentials: false
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.x'
+
+      - name: Install zizmor
+        run: pip install zizmor
+
+      - name: Run zizmor
+        run: zizmor --format sarif .github/workflows/ > zizmor.sarif
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload SARIF results to code scanning
+        if: always() && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository)
+        uses: github/codeql-action/upload-sarif@v4
+        with:
+          sarif_file: zizmor.sarif
+          category: zizmor
@@ -0,0 +1,11 @@
+# Configuration for zizmor (https://docs.zizmor.sh)
+rules:
+  unpinned-uses:
+    config:
+      # First-party GitHub-maintained actions are trusted and referenced by
+      # major-version tags (the convention used across the actions org).
+      # Any third-party action must be pinned to a full commit SHA.
+      policies:
+        actions/*: ref-pin
+        github/*: ref-pin
+        '*': hash-pin
@@ -0,0 +1 @@
+npx lint-staged
@@ -0,0 +1 @@
+npm run build && npm test
@@ -41,6 +41,10 @@ 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.

+  - `verify-signature`: Verifies downloaded Java package signatures when supported by the selected distribution. Currently supported for `temurin` and `microsoft`. If set to `true` for unsupported distributions, the action fails.
+
+  - `verify-signature-public-key`: ASCII-armored GPG public key used to verify the downloaded package signature. Overrides the default bundled key for the selected distribution.
+
  - `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.
@@ -112,7 +116,9 @@ Currently, the following distributions are supported:
 | `dragonwell` | [Alibaba Dragonwell JDK](https://dragonwell-jdk.io/) | [`dragonwell` license](https://www.aliyun.com/product/dragonwell/)
 | `sapmachine` | [SAP SapMachine JDK/JRE](https://sapmachine.io/) | [`sapmachine` license](https://github.com/SAP/SapMachine/blob/sapmachine/LICENSE)
 | `graalvm` | [Oracle GraalVM](https://www.graalvm.org/) | [`graalvm` license](https://www.oracle.com/downloads/licenses/graal-free-license.html)
+| `graalvm-community` | [GraalVM Community](https://github.com/graalvm/graalvm-ce-builds/releases) | [`graalvm-community` license](https://github.com/oracle/graal/blob/master/LICENSE)
 | `jetbrains` | [JetBrains Runtime](https://github.com/JetBrains/JetBrainsRuntime/) | [`jetbrains` license](https://github.com/JetBrains/JetBrainsRuntime/blob/main/LICENSE)
+| `kona` | [Tencent Kona JDK](https://tencent.github.io/konajdk/) | [`kona` license](https://tencent.github.io/konajdk/LICENSE.txt)
 | `jdkfile` | Custom JDK Installation | |

 > [!NOTE]
@@ -120,6 +126,7 @@ Currently, the following distributions are supported:
 > - AdoptOpenJDK got moved to Eclipse Temurin and won't be updated anymore. It is highly recommended to migrate workflows from `adopt` and `adopt-openj9`, to `temurin` and `semeru` respectively, to keep receiving software and security updates. See more details in the [Good-bye AdoptOpenJDK post](https://blog.adoptopenjdk.net/2021/08/goodbye-adoptopenjdk-hello-adoptium/).
 > - For Azul Zulu OpenJDK architectures x64 and arm64 are mapped to x86 / arm with proper hw_bitness.
 > - 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.
+> - GraalVM Community is available as `distribution: 'graalvm-community'` for stable JDK 17 and later releases published on GitHub.

 **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.

@@ -275,6 +282,7 @@ In the example above multiple JDKs are installed for the same job. The result af
  - [SapMachine](docs/advanced-usage.md#SapMachine)
  - [GraalVM](docs/advanced-usage.md#GraalVM)
  - [JetBrains](docs/advanced-usage.md#JetBrains)
+  - [Tencent Kona](docs/advanced-usage.md#Tencent-Kona)
 - [Installing custom Java package type](docs/advanced-usage.md#Installing-custom-Java-package-type)
 - [Installing custom Java architecture](docs/advanced-usage.md#Installing-custom-Java-architecture)
 - [Installing custom Java distribution from local file](docs/advanced-usage.md#Installing-Java-from-local-file)
@@ -160,6 +160,7 @@ describe('auth tests', () => {
    const expectedSettings = `<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd">
+  <interactiveMode>false</interactiveMode>
  <servers>
    <server>
      <id>${id}</id>
@@ -181,6 +182,7 @@ describe('auth tests', () => {
    const expectedSettings = `<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd">
+  <interactiveMode>false</interactiveMode>
  <servers>
    <server>
      <id>${id}</id>
@@ -0,0 +1,162 @@
+{
+  "8": [
+    {
+      "version": "8.0.20",
+      "jdkVersion": "8u432",
+      "latest": true,
+      "baseUrl": "https://github.com/Tencent/TencentKona-8/releases/download/8.0.20-GA/",
+      "files": [
+        {
+          "os": "linux",
+          "arch": "aarch64",
+          "filename": "TencentKona8.0.20.b1_jdk_linux-aarch64_8u432.tar.gz",
+          "checksum": "8e6ab38b17f98d7ba727037cb49bbd174f3103a6ddacafb1fb7c0231006a80a7"
+        },
+        {
+          "os": "linux",
+          "arch": "x86_64",
+          "filename": "TencentKona8.0.20.b1_jdk_linux-x86_64_8u432.tar.gz",
+          "checksum": "384cdb36b38993f4b7292682a5dfd8d5d33ba7bdbca2d95018d1341c792d2823"
+        },
+        {
+          "os": "macos",
+          "arch": "aarch64",
+          "filename": "TencentKona8.0.20.b1_jdk_macosx-aarch64_8u432_notarized.tar.gz",
+          "checksum": "829c46691a4b519f14fedfcdca32a94d7793d3570c4a51b3a5072cc394619f25"
+        },
+        {
+          "os": "macos",
+          "arch": "x86_64",
+          "filename": "TencentKona8.0.20.b1_jdk_macosx-x86_64_8u432_notarized.tar.gz",
+          "checksum": ""
+        },
+        {
+          "os": "windows",
+          "arch": "x86_64",
+          "filename": "TencentKona8.0.20.b1_jdk_windows-x86_64_8u432_signed.zip",
+          "checksum": "339646817254dbcb5c17904807bbfdeafaa8e4bac9f2aae25434870cdeaba296"
+        }
+      ]
+    }
+  ],
+  "11": [
+    {
+      "version": "11.0.25",
+      "jdkVersion": "11.0.25",
+      "latest": true,
+      "baseUrl": "https://github.com/Tencent/TencentKona-11/releases/download/kona11.0.25/",
+      "files": [
+        {
+          "os": "linux",
+          "arch": "aarch64",
+          "filename": "TencentKona-11.0.25.b1-jdk_linux-aarch64.tar.gz",
+          "checksum": "887ca5eeb675dd9b9d22833a8b0c1031ee1a031227d6cf2d8c1920cc585d2b71"
+        },
+        {
+          "os": "linux",
+          "arch": "x86_64",
+          "filename": "TencentKona-11.0.25.b1-jdk_linux-x86_64.tar.gz",
+          "checksum": "6642d7cccf98f33b3ec55cdbf77979c614f0d3cbbd282e8d0df52233edc52f9a"
+        },
+        {
+          "os": "macos",
+          "arch": "aarch64",
+          "filename": "TencentKona-11.0.25.b1_jdk_macosx-aarch64_notarized.tar.gz",
+          "checksum": "8f07242d3191a35c3b2fca1122f315518c7312f0155e98ac7ae39ea083f93e21"
+        },
+        {
+          "os": "macos",
+          "arch": "x86_64",
+          "filename": "TencentKona-11.0.25.b1_jdk_macosx-x86_64_notarized.tar.gz",
+          "checksum": "0832b93d8d8122cb72db85321ddd85c9a6086e0f28327733fc2da3c0ecc9c455"
+        },
+        {
+          "os": "windows",
+          "arch": "x86_64",
+          "filename": "TencentKona-11.0.25.b1_jdk_windows-x86_64_signed.zip",
+          "checksum": "05c470c5da4b3bc1844117f611ecd241d3ae9e5d01c17ffafffde0f23825aad7"
+        }
+      ]
+    }
+  ],
+  "17": [
+    {
+      "version": "17.0.13",
+      "jdkVersion": "17.0.13",
+      "latest": true,
+      "baseUrl": "https://github.com/Tencent/TencentKona-17/releases/download/TencentKona-17.0.13/",
+      "files": [
+        {
+          "os": "linux",
+          "arch": "aarch64",
+          "filename": "TencentKona-17.0.13.b1-jdk_linux-aarch64.tar.gz",
+          "checksum": "372411dff5b42f6e419f1dd40772d98141a15c3d180ed1af6f2b49bdbbd32d52"
+        },
+        {
+          "os": "linux",
+          "arch": "x86_64",
+          "filename": "TencentKona-17.0.13.b1-jdk_linux-x86_64.tar.gz",
+          "checksum": "b54bb023d1187737b23ca34d0857d2d40822b14e38d28c7948c8ff6b5927e523"
+        },
+        {
+          "os": "macos",
+          "arch": "aarch64",
+          "filename": "TencentKona-17.0.13.b1_jdk_macosx-aarch64_notarized.tar.gz",
+          "checksum": "22f5d296c407fc137e6af9ce275e662346ca82f1a5acfc407247efd8cedf5256"
+        },
+        {
+          "os": "macos",
+          "arch": "x86_64",
+          "filename": "TencentKona-17.0.13.b1_jdk_macosx-x86_64_notarized.tar.gz",
+          "checksum": "87ace41ac9718f2a9512b24bad0f735bc5ac61b8198b4cd5634199f124883b36"
+        },
+        {
+          "os": "windows",
+          "arch": "x86_64",
+          "filename": "TencentKona-17.0.13.b1_jdk_windows-x86_64_signed.zip",
+          "checksum": "616089018151e8e5daf8e88276063633a2cb28a718a2afce49bb8fc10541e83d"
+        }
+      ]
+    }
+  ],
+  "21": [
+    {
+      "version": "21.0.5",
+      "jdkVersion": "21.0.5",
+      "latest": true,
+      "baseUrl": "https://github.com/Tencent/TencentKona-21/releases/download/TencentKona-21.0.5/",
+      "files": [
+        {
+          "os": "linux",
+          "arch": "aarch64",
+          "filename": "TencentKona-21.0.5.b1-jdk_linux-aarch64.tar.gz",
+          "checksum": "d8ca108147db3f19134d7aa995bac14e1fb3d124b0300a9a7893266a8f028104"
+        },
+        {
+          "os": "linux",
+          "arch": "x86_64",
+          "filename": "TencentKona-21.0.5.b1-jdk_linux-x86_64.tar.gz",
+          "checksum": "afae039d9666fadcb84940c5350b29cd061019b0cc43700f0bf0342320892adf"
+        },
+        {
+          "os": "macos",
+          "arch": "aarch64",
+          "filename": "TencentKona-21.0.5.b1_jdk_macosx-aarch64_notarized.tar.gz",
+          "checksum": "7621a218767bfbd3023b176dc6d9dd019677f8efec0d48a4eb2b2ed2b50bd1fb"
+        },
+        {
+          "os": "macos",
+          "arch": "x86_64",
+          "filename": "TencentKona-21.0.5.b1_jdk_macosx-x86_64_notarized.tar.gz",
+          "checksum": "6c54d46f979ad998b708f664c5aeeeef855660ef527d584a7c2930951cca9999"
+        },
+        {
+          "os": "windows",
+          "arch": "x86_64",
+          "filename": "TencentKona-21.0.5.b1_jdk_windows-x86_64_signed.zip",
+          "checksum": "ee1ee730fc5e02268d91b9df602b65122dad25b3d3898069331ebc8338005da1"
+        }
+      ]
+    }
+  ]
+}
@@ -15,7 +15,8 @@
          "link": "https://github.com/adoptium/temurin16-binaries/releases/download/jdk-16.0.2%2B7/OpenJDK16U-jdk_x64_linux_hotspot_16.0.2_7.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin16-binaries/releases/download/jdk-16.0.2%2B7/OpenJDK16U-jdk_x64_linux_hotspot_16.0.2_7.tar.gz.json",
          "name": "OpenJDK16U-jdk_x64_linux_hotspot_16.0.2_7.tar.gz",
-          "size": 205463525
+          "size": 205463525,
+          "signature_link": "https://github.com/adoptium/temurin16-binaries/releases/download/jdk-16.0.2%2B7/OpenJDK16U-jdk_x64_linux_hotspot_16.0.2_7.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-16.0.2+7_adopt",
@@ -44,7 +45,8 @@
          "link": "https://github.com/adoptium/temurin16-binaries/releases/download/jdk-16.0.2%2B7/OpenJDK16U-jdk_x64_mac_hotspot_16.0.2_7.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin16-binaries/releases/download/jdk-16.0.2%2B7/OpenJDK16U-jdk_x64_mac_hotspot_16.0.2_7.tar.gz.json",
          "name": "OpenJDK16U-jdk_x64_mac_hotspot_16.0.2_7.tar.gz",
-          "size": 206621395
+          "size": 206621395,
+          "signature_link": "https://github.com/adoptium/temurin16-binaries/releases/download/jdk-16.0.2%2B7/OpenJDK16U-jdk_x64_mac_hotspot_16.0.2_7.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-16.0.2+7_adopt",
@@ -73,7 +75,8 @@
          "link": "https://github.com/adoptium/temurin16-binaries/releases/download/jdk-16.0.2%2B7/OpenJDK16U-jdk_x64_windows_hotspot_16.0.2_7.zip",
          "metadata_link": "https://github.com/adoptium/temurin16-binaries/releases/download/jdk-16.0.2%2B7/OpenJDK16U-jdk_x64_windows_hotspot_16.0.2_7.zip.json",
          "name": "OpenJDK16U-jdk_x64_windows_hotspot_16.0.2_7.zip",
-          "size": 203448494
+          "size": 203448494,
+          "signature_link": "https://github.com/adoptium/temurin16-binaries/releases/download/jdk-16.0.2%2B7/OpenJDK16U-jdk_x64_windows_hotspot_16.0.2_7.zip.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-16.0.2+7_adopt",
@@ -113,7 +116,8 @@
          "link": "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u302-b08/OpenJDK8U-jdk_x64_linux_hotspot_8u302b08.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u302-b08/OpenJDK8U-jdk_x64_linux_hotspot_8u302b08.tar.gz.json",
          "name": "OpenJDK8U-jdk_x64_linux_hotspot_8u302b08.tar.gz",
-          "size": 102954777
+          "size": 102954777,
+          "signature_link": "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u302-b08/OpenJDK8U-jdk_x64_linux_hotspot_8u302b08.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk8u302-b08",
@@ -142,7 +146,8 @@
          "link": "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u302-b08/OpenJDK8U-jdk_x64_mac_hotspot_8u302b08.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u302-b08/OpenJDK8U-jdk_x64_mac_hotspot_8u302b08.tar.gz.json",
          "name": "OpenJDK8U-jdk_x64_mac_hotspot_8u302b08.tar.gz",
-          "size": 107303398
+          "size": 107303398,
+          "signature_link": "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u302-b08/OpenJDK8U-jdk_x64_mac_hotspot_8u302b08.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk8u302-b08",
@@ -171,7 +176,8 @@
          "link": "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u302-b08/OpenJDK8U-jdk_x64_windows_hotspot_8u302b08.zip",
          "metadata_link": "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u302-b08/OpenJDK8U-jdk_x64_windows_hotspot_8u302b08.zip.json",
          "name": "OpenJDK8U-jdk_x64_windows_hotspot_8u302b08.zip",
-          "size": 104297671
+          "size": 104297671,
+          "signature_link": "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u302-b08/OpenJDK8U-jdk_x64_windows_hotspot_8u302b08.zip.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk8u302-b08",
@@ -211,7 +217,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_aarch64_linux_hotspot_2021-07-31-00-07.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_aarch64_linux_hotspot_2021-07-31-00-07.tar.gz.json",
          "name": "OpenJDK17-jdk_aarch64_linux_hotspot_2021-07-31-00-07.tar.gz",
-          "size": 188909250
+          "size": 188909250,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_aarch64_linux_hotspot_2021-07-31-00-07.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+33_adopt-16-ge39bf269d60",
@@ -240,7 +247,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_aarch64_mac_hotspot_2021-07-31-00-07.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_aarch64_mac_hotspot_2021-07-31-00-07.tar.gz.json",
          "name": "OpenJDK17-jdk_aarch64_mac_hotspot_2021-07-31-00-07.tar.gz",
-          "size": 192952713
+          "size": 192952713,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_aarch64_mac_hotspot_2021-07-31-00-07.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+33_adopt-219-ge39bf269d60",
@@ -260,7 +268,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_arm_linux_hotspot_2021-07-31-00-07.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_arm_linux_hotspot_2021-07-31-00-07.tar.gz.json",
          "name": "OpenJDK17-jdk_arm_linux_hotspot_2021-07-31-00-07.tar.gz",
-          "size": 188816971
+          "size": 188816971,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_arm_linux_hotspot_2021-07-31-00-07.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+33_adopt-16-ge39bf269d60",
@@ -280,7 +289,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_ppc64_aix_hotspot_2021-07-31-00-07.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-31-00-07-beta/OpenJDK17-jdk_ppc64_aix_hotspot_2021-07-31-00-07.tar.gz.json",
          "name": "OpenJDK17-jdk_ppc64_aix_hotspot_2021-07-31-00-07.tar.gz",
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        "scm_ref": "jdk-17+29_adopt-138-g6d3debb5c12",
@@ -2052,7 +2130,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_aarch64_mac_hotspot_2021-07-02-12-00.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_aarch64_mac_hotspot_2021-07-02-12-00.tar.gz.json",
          "name": "OpenJDK17-jdk_aarch64_mac_hotspot_2021-07-02-12-00.tar.gz",
-          "size": 192957934
+          "size": 192957934,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_aarch64_mac_hotspot_2021-07-02-12-00.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+29_adopt-138-g6d3debb5c12",
@@ -2072,7 +2151,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_arm_linux_hotspot_2021-07-02-12-00.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_arm_linux_hotspot_2021-07-02-12-00.tar.gz.json",
          "name": "OpenJDK17-jdk_arm_linux_hotspot_2021-07-02-12-00.tar.gz",
-          "size": 188797466
+          "size": 188797466,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_arm_linux_hotspot_2021-07-02-12-00.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+29_adopt-43-g6d3debb5c12",
@@ -2092,7 +2172,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_ppc64_aix_hotspot_2021-07-02-12-00.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_ppc64_aix_hotspot_2021-07-02-12-00.tar.gz.json",
          "name": "OpenJDK17-jdk_ppc64_aix_hotspot_2021-07-02-12-00.tar.gz",
-          "size": 182292580
+          "size": 182292580,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_ppc64_aix_hotspot_2021-07-02-12-00.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+29_adopt-138-g6d3debb5c12",
@@ -2112,7 +2193,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_ppc64le_linux_hotspot_2021-07-02-12-00.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_ppc64le_linux_hotspot_2021-07-02-12-00.tar.gz.json",
          "name": "OpenJDK17-jdk_ppc64le_linux_hotspot_2021-07-02-12-00.tar.gz",
-          "size": 187684930
+          "size": 187684930,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_ppc64le_linux_hotspot_2021-07-02-12-00.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+29_adopt-64-g6d3debb5c12",
@@ -2132,7 +2214,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_s390x_linux_hotspot_2021-07-02-12-00.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_s390x_linux_hotspot_2021-07-02-12-00.tar.gz.json",
          "name": "OpenJDK17-jdk_s390x_linux_hotspot_2021-07-02-12-00.tar.gz",
-          "size": 179484390
+          "size": 179484390,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_s390x_linux_hotspot_2021-07-02-12-00.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+29_adopt-54-g6d3debb5c12",
@@ -2152,7 +2235,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_alpine-linux_hotspot_2021-07-01-23-30.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_alpine-linux_hotspot_2021-07-01-23-30.tar.gz.json",
          "name": "OpenJDK17-jdk_x64_alpine-linux_hotspot_2021-07-01-23-30.tar.gz",
-          "size": 192114561
+          "size": 192114561,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_alpine-linux_hotspot_2021-07-01-23-30.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+29_adopt-138-g6d3debb5c12",
@@ -2172,7 +2256,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_linux_hotspot_2021-07-02-12-00.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_linux_hotspot_2021-07-02-12-00.tar.gz.json",
          "name": "OpenJDK17-jdk_x64_linux_hotspot_2021-07-02-12-00.tar.gz",
-          "size": 192014644
+          "size": 192014644,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_linux_hotspot_2021-07-02-12-00.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+29_adopt-138-g6d3debb5c12",
@@ -2201,7 +2286,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_mac_hotspot_2021-07-02-12-00.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_mac_hotspot_2021-07-02-12-00.tar.gz.json",
          "name": "OpenJDK17-jdk_x64_mac_hotspot_2021-07-02-12-00.tar.gz",
-          "size": 192425033
+          "size": 192425033,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_mac_hotspot_2021-07-02-12-00.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+29_adopt-138-g6d3debb5c12",
@@ -2230,7 +2316,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_windows_hotspot_2021-07-02-12-00.zip",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_windows_hotspot_2021-07-02-12-00.zip.json",
          "name": "OpenJDK17-jdk_x64_windows_hotspot_2021-07-02-12-00.zip",
-          "size": 188697393
+          "size": 188697393,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x64_windows_hotspot_2021-07-02-12-00.zip.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+29_adopt-138-g6d3debb5c12",
@@ -2259,7 +2346,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x86-32_windows_hotspot_2021-07-02-12-00.zip",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x86-32_windows_hotspot_2021-07-02-12-00.zip.json",
          "name": "OpenJDK17-jdk_x86-32_windows_hotspot_2021-07-02-12-00.zip",
-          "size": 184618232
+          "size": 184618232,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-07-02-12-00-beta/OpenJDK17-jdk_x86-32_windows_hotspot_2021-07-02-12-00.zip.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+29_adopt-138-g6d3debb5c12",
@@ -2301,7 +2389,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_aarch64_linux_hotspot_2021-06-30-09-16.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_aarch64_linux_hotspot_2021-06-30-09-16.tar.gz.json",
          "name": "OpenJDK17-jdk_aarch64_linux_hotspot_2021-06-30-09-16.tar.gz",
-          "size": 188940191
+          "size": 188940191,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_aarch64_linux_hotspot_2021-06-30-09-16.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+28_adopt-130-g0fe0d0825e7",
@@ -2330,7 +2419,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_aarch64_mac_hotspot_2021-06-30-09-16.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_aarch64_mac_hotspot_2021-06-30-09-16.tar.gz.json",
          "name": "OpenJDK17-jdk_aarch64_mac_hotspot_2021-06-30-09-16.tar.gz",
-          "size": 192953718
+          "size": 192953718,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_aarch64_mac_hotspot_2021-06-30-09-16.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+28_adopt-130-g0fe0d0825e7",
@@ -2350,7 +2440,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_arm_linux_hotspot_2021-06-30-09-16.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_arm_linux_hotspot_2021-06-30-09-16.tar.gz.json",
          "name": "OpenJDK17-jdk_arm_linux_hotspot_2021-06-30-09-16.tar.gz",
-          "size": 188795343
+          "size": 188795343,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_arm_linux_hotspot_2021-06-30-09-16.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "0fe0d0825e7",
@@ -2370,7 +2461,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_ppc64_aix_hotspot_2021-06-30-09-16.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_ppc64_aix_hotspot_2021-06-30-09-16.tar.gz.json",
          "name": "OpenJDK17-jdk_ppc64_aix_hotspot_2021-06-30-09-16.tar.gz",
-          "size": 182285782
+          "size": 182285782,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_ppc64_aix_hotspot_2021-06-30-09-16.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "0fe0d0825e7",
@@ -2390,7 +2482,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_ppc64le_linux_hotspot_2021-06-30-09-16.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_ppc64le_linux_hotspot_2021-06-30-09-16.tar.gz.json",
          "name": "OpenJDK17-jdk_ppc64le_linux_hotspot_2021-06-30-09-16.tar.gz",
-          "size": 187652430
+          "size": 187652430,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_ppc64le_linux_hotspot_2021-06-30-09-16.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "0fe0d0825e7",
@@ -2410,7 +2503,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_s390x_linux_hotspot_2021-06-30-09-16.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_s390x_linux_hotspot_2021-06-30-09-16.tar.gz.json",
          "name": "OpenJDK17-jdk_s390x_linux_hotspot_2021-06-30-09-16.tar.gz",
-          "size": 179489547
+          "size": 179489547,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_s390x_linux_hotspot_2021-06-30-09-16.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "0fe0d0825e7",
@@ -2430,7 +2524,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_alpine-linux_hotspot_2021-06-29-23-33.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_alpine-linux_hotspot_2021-06-29-23-33.tar.gz.json",
          "name": "OpenJDK17-jdk_x64_alpine-linux_hotspot_2021-06-29-23-33.tar.gz",
-          "size": 192109453
+          "size": 192109453,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_alpine-linux_hotspot_2021-06-29-23-33.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+28_adopt-130-g0fe0d0825e7",
@@ -2450,7 +2545,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_linux_hotspot_2021-06-30-09-16.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_linux_hotspot_2021-06-30-09-16.tar.gz.json",
          "name": "OpenJDK17-jdk_x64_linux_hotspot_2021-06-30-09-16.tar.gz",
-          "size": 192013559
+          "size": 192013559,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_linux_hotspot_2021-06-30-09-16.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+28_adopt-130-g0fe0d0825e7",
@@ -2479,7 +2575,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_mac_hotspot_2021-06-30-09-16.tar.gz",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_mac_hotspot_2021-06-30-09-16.tar.gz.json",
          "name": "OpenJDK17-jdk_x64_mac_hotspot_2021-06-30-09-16.tar.gz",
-          "size": 192419518
+          "size": 192419518,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_mac_hotspot_2021-06-30-09-16.tar.gz.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+28_adopt-130-g0fe0d0825e7",
@@ -2508,7 +2605,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_windows_hotspot_2021-06-30-09-16.zip",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_windows_hotspot_2021-06-30-09-16.zip.json",
          "name": "OpenJDK17-jdk_x64_windows_hotspot_2021-06-30-09-16.zip",
-          "size": 188672489
+          "size": 188672489,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x64_windows_hotspot_2021-06-30-09-16.zip.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+28_adopt-130-g0fe0d0825e7",
@@ -2537,7 +2635,8 @@
          "link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x86-32_windows_hotspot_2021-06-30-09-16.zip",
          "metadata_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x86-32_windows_hotspot_2021-06-30-09-16.zip.json",
          "name": "OpenJDK17-jdk_x86-32_windows_hotspot_2021-06-30-09-16.zip",
-          "size": 184626094
+          "size": 184626094,
+          "signature_link": "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-06-30-09-16-beta/OpenJDK17-jdk_x86-32_windows_hotspot_2021-06-30-09-16.zip.sig"
        },
        "project": "jdk",
        "scm_ref": "jdk-17+28_adopt-132-g23fbf51b850",
@@ -464,6 +464,24 @@ describe('setupJava', () => {
    }
  );

+  it('should fail when verify-signature is enabled for unsupported distributions', async () => {
+    mockJavaBase = new EmptyJavaBase({
+      version: '11',
+      architecture: 'x86',
+      packageType: 'jdk',
+      checkLatest: false,
+      verifySignature: true
+    });
+
+    await expect(mockJavaBase.setupJava()).rejects.toThrow(
+      "Input 'verify-signature' is not supported for distribution 'Empty'."
+    );
+    expect(spyTcFindAllVersions).not.toHaveBeenCalled();
+    expect(spyCoreAddPath).not.toHaveBeenCalled();
+    expect(spyCoreExportVariable).not.toHaveBeenCalled();
+    expect(spyCoreSetOutput).not.toHaveBeenCalled();
+  });
+
  it.each([
    [
      {
@@ -3,7 +3,11 @@ import * as tc from '@actions/tool-cache';
 import * as http from '@actions/http-client';
 import fs from 'fs';
 import path from 'path';
-import {GraalVMDistribution} from '../../src/distributions/graalvm/installer';
+import {
+  GraalVMCommunityDistribution,
+  GraalVMDistribution
+} from '../../src/distributions/graalvm/installer';
+import {getJavaDistribution} from '../../src/distributions/distribution-factory';
 import {JavaInstallerOptions} from '../../src/distributions/base-models';
 import * as util from '../../src/util';

@@ -41,6 +45,7 @@ beforeAll(() => {

 describe('GraalVMDistribution', () => {
  let distribution: GraalVMDistribution;
+  let communityDistribution: GraalVMCommunityDistribution;
  let mockHttpClient: jest.Mocked<http.HttpClient>;
  let spyCoreError: jest.SpyInstance;

@@ -55,9 +60,11 @@ describe('GraalVMDistribution', () => {
    jest.clearAllMocks();

    distribution = new GraalVMDistribution(defaultOptions);
+    communityDistribution = new GraalVMCommunityDistribution(defaultOptions);

    mockHttpClient = new http.HttpClient() as jest.Mocked<http.HttpClient>;
    (distribution as any).http = mockHttpClient;
+    (communityDistribution as any).http = mockHttpClient;

    (util.getDownloadArchiveExtension as jest.Mock).mockReturnValue('tar.gz');

@@ -242,6 +249,23 @@ describe('GraalVMDistribution', () => {
        path: '/cached/java/path'
      });
    });
+
+    it('should use a dedicated toolcache folder for GraalVM Community', async () => {
+      const result = await (communityDistribution as any).downloadTool(
+        javaRelease
+      );
+
+      expect(tc.cacheDir).toHaveBeenCalledWith(
+        path.join('/tmp/extracted', 'graalvm-jdk-17.0.5'),
+        'Java_GraalVM_Community_jdk',
+        '17.0.5',
+        'x64'
+      );
+      expect(result).toEqual({
+        version: '17.0.5',
+        path: '/cached/java/path'
+      });
+    });
  });

  describe('findPackageForDownload', () => {
@@ -948,5 +972,121 @@ describe('GraalVMDistribution', () => {
        configurable: true
      });
    });
+
+    describe('GraalVMCommunityDistribution', () => {
+      beforeEach(() => {
+        jest
+          .spyOn(communityDistribution, 'getPlatform')
+          .mockReturnValue('linux');
+      });
+
+      it('should resolve an exact GraalVM Community version from GitHub releases', async () => {
+        mockHttpClient.getJson.mockResolvedValue({
+          result: [
+            {
+              draft: false,
+              prerelease: false,
+              assets: [
+                {
+                  name: 'graalvm-community-jdk-21.0.2_linux-x64_bin.tar.gz',
+                  browser_download_url:
+                    'https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-21.0.2/graalvm-community-jdk-21.0.2_linux-x64_bin.tar.gz'
+                }
+              ]
+            }
+          ],
+          statusCode: 200,
+          headers: {}
+        });
+
+        const result = await (
+          communityDistribution as any
+        ).findPackageForDownload('21.0.2');
+
+        expect(result).toEqual({
+          url: 'https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-21.0.2/graalvm-community-jdk-21.0.2_linux-x64_bin.tar.gz',
+          version: '21.0.2'
+        });
+      });
+
+      it('should resolve the latest GraalVM Community release for a major version', async () => {
+        mockHttpClient.getJson.mockResolvedValue({
+          result: [
+            {
+              draft: false,
+              prerelease: false,
+              assets: [
+                {
+                  name: 'graalvm-community-jdk-21.0.1_linux-x64_bin.tar.gz',
+                  browser_download_url:
+                    'https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-21.0.1/graalvm-community-jdk-21.0.1_linux-x64_bin.tar.gz'
+                }
+              ]
+            },
+            {
+              draft: false,
+              prerelease: false,
+              assets: [
+                {
+                  name: 'graalvm-community-jdk-21.0.2_linux-x64_bin.tar.gz',
+                  browser_download_url:
+                    'https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-21.0.2/graalvm-community-jdk-21.0.2_linux-x64_bin.tar.gz'
+                }
+              ]
+            }
+          ],
+          statusCode: 200,
+          headers: {}
+        });
+
+        const result = await (
+          communityDistribution as any
+        ).findPackageForDownload('21');
+
+        expect(result).toEqual({
+          url: 'https://github.com/graalvm/graalvm-ce-builds/releases/download/jdk-21.0.2/graalvm-community-jdk-21.0.2_linux-x64_bin.tar.gz',
+          version: '21.0.2'
+        });
+      });
+
+      it('should reject GraalVM Community early access requests', async () => {
+        (communityDistribution as any).stable = false;
+
+        await expect(
+          (communityDistribution as any).findPackageForDownload('23')
+        ).rejects.toThrow(
+          'GraalVM Community does not provide early access builds'
+        );
+      });
+
+      it('should surface an error when the releases listing is not an array', async () => {
+        mockHttpClient.getJson.mockResolvedValue({
+          result: {message: 'API rate limit exceeded'},
+          statusCode: 403,
+          headers: {}
+        });
+
+        await expect(
+          (communityDistribution as any).findPackageForDownload('21')
+        ).rejects.toThrow(
+          /Unexpected response while listing GraalVM Community releases.*HTTP status code: 403/s
+        );
+      });
+    });
+  });
+});
+
+describe('distribution factory', () => {
+  const defaultOptions: JavaInstallerOptions = {
+    version: '17',
+    architecture: 'x64',
+    packageType: 'jdk',
+    checkLatest: false
+  };
+
+  it('should map graalvm-community to the community installer', () => {
+    const community = getJavaDistribution('graalvm-community', defaultOptions);
+
+    expect(community).toBeInstanceOf(GraalVMCommunityDistribution);
  });
 });
@@ -87,10 +87,26 @@ describe('findPackageForDownload', () => {
      const url = resolvedVersion.url;
      const options = {method: 'HEAD'};

-      https.request(url, options, res => {
-        // JetBrains uses 403 for inexistent packages
-        expect(res.statusCode).not.toBe(403);
-        res.resume();
+      await new Promise<void>((resolve, reject) => {
+        const request = https.request(url, options, res => {
+          let assertionError: unknown;
+
+          try {
+            // JetBrains uses 403 for non-existent packages
+            expect(res.statusCode).not.toBe(403);
+          } catch (error) {
+            assertionError = error;
+          }
+
+          res.resume();
+          res.once('error', reject);
+          res.once('end', () =>
+            assertionError ? reject(assertionError as Error) : resolve()
+          );
+        });
+
+        request.on('error', reject);
+        request.end();
      });
    }
  );
@@ -0,0 +1,223 @@
+import {KonaDistribution} from '../../src/distributions/kona/installer';
+
+import manifestData from '../data/kona.json';
+
+function mockDistr(
+  version: string,
+  os: string,
+  arch: string,
+  packageType: string
+): KonaDistribution {
+  const distribution = new KonaDistribution({
+    version: version,
+    architecture: arch,
+    packageType: packageType,
+    checkLatest: false
+  });
+
+  distribution['getOs'] = () => os;
+  distribution['fetchReleaseInfo'] = async () => manifestData;
+
+  return distribution;
+}
+
+describe('Check getAvailableReleases', () => {
+  it.each([
+    ['8', 'linux', 'aarch64', 'linux-aarch64'],
+    ['8.0.20', 'macos', 'x86_64', 'macosx-x86_64'],
+    ['11', 'linux', 'x86_64', 'linux-x86_64'],
+    ['11.0.25', 'macos', 'aarch64', 'macosx-aarch64'],
+    ['17.0.13', 'windows', 'x86_64', 'windows-x86_64'],
+    ['21.0.5', 'linux', 'x86_64', 'linux-x86_64']
+  ])(
+    'should get releases with the specified version "%s", OS "%s" and arch "%s"',
+    async (
+      version: string,
+      os: string,
+      arch: string,
+      expectedPattern: string
+    ) => {
+      const distribution = mockDistr(version, os, arch, 'jdk');
+
+      const releases = await distribution['getAvailableReleases']();
+      expect(releases).not.toBeNull();
+      expect(releases.length).toBe(4);
+      releases.forEach(release =>
+        expect(release.downloadUrl).toContain(expectedPattern)
+      );
+    }
+  );
+});
+
+describe('Check findPackageForDownload', () => {
+  it.each([
+    [
+      '8',
+      'linux',
+      'aarch64',
+      'https://github.com/Tencent/TencentKona-8/releases/download/8.0.20-GA/TencentKona8.0.20.b1_jdk_linux-aarch64_8u432.tar.gz'
+    ],
+    [
+      '8.0.20',
+      'linux',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-8/releases/download/8.0.20-GA/TencentKona8.0.20.b1_jdk_linux-x86_64_8u432.tar.gz'
+    ],
+    [
+      '8.0.20',
+      'macos',
+      'aarch64',
+      'https://github.com/Tencent/TencentKona-8/releases/download/8.0.20-GA/TencentKona8.0.20.b1_jdk_macosx-aarch64_8u432_notarized.tar.gz'
+    ],
+    [
+      '8.0.20',
+      'macos',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-8/releases/download/8.0.20-GA/TencentKona8.0.20.b1_jdk_macosx-x86_64_8u432_notarized.tar.gz'
+    ],
+    [
+      '8.0.20',
+      'windows',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-8/releases/download/8.0.20-GA/TencentKona8.0.20.b1_jdk_windows-x86_64_8u432_signed.zip'
+    ],
+
+    [
+      '11',
+      'linux',
+      'aarch64',
+      'https://github.com/Tencent/TencentKona-11/releases/download/kona11.0.25/TencentKona-11.0.25.b1-jdk_linux-aarch64.tar.gz'
+    ],
+    [
+      '11.0.25',
+      'linux',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-11/releases/download/kona11.0.25/TencentKona-11.0.25.b1-jdk_linux-x86_64.tar.gz'
+    ],
+    [
+      '11.0.25',
+      'macos',
+      'aarch64',
+      'https://github.com/Tencent/TencentKona-11/releases/download/kona11.0.25/TencentKona-11.0.25.b1_jdk_macosx-aarch64_notarized.tar.gz'
+    ],
+    [
+      '11.0.25',
+      'macos',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-11/releases/download/kona11.0.25/TencentKona-11.0.25.b1_jdk_macosx-x86_64_notarized.tar.gz'
+    ],
+    [
+      '11.0.25',
+      'windows',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-11/releases/download/kona11.0.25/TencentKona-11.0.25.b1_jdk_windows-x86_64_signed.zip'
+    ],
+
+    [
+      '17',
+      'linux',
+      'aarch64',
+      'https://github.com/Tencent/TencentKona-17/releases/download/TencentKona-17.0.13/TencentKona-17.0.13.b1-jdk_linux-aarch64.tar.gz'
+    ],
+    [
+      '17.0.13',
+      'linux',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-17/releases/download/TencentKona-17.0.13/TencentKona-17.0.13.b1-jdk_linux-x86_64.tar.gz'
+    ],
+    [
+      '17.0.13',
+      'macos',
+      'aarch64',
+      'https://github.com/Tencent/TencentKona-17/releases/download/TencentKona-17.0.13/TencentKona-17.0.13.b1_jdk_macosx-aarch64_notarized.tar.gz'
+    ],
+    [
+      '17.0.13',
+      'macos',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-17/releases/download/TencentKona-17.0.13/TencentKona-17.0.13.b1_jdk_macosx-x86_64_notarized.tar.gz'
+    ],
+    [
+      '17.0.13',
+      'windows',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-17/releases/download/TencentKona-17.0.13/TencentKona-17.0.13.b1_jdk_windows-x86_64_signed.zip'
+    ],
+
+    [
+      '21',
+      'linux',
+      'aarch64',
+      'https://github.com/Tencent/TencentKona-21/releases/download/TencentKona-21.0.5/TencentKona-21.0.5.b1-jdk_linux-aarch64.tar.gz'
+    ],
+    [
+      '21.0.5',
+      'linux',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-21/releases/download/TencentKona-21.0.5/TencentKona-21.0.5.b1-jdk_linux-x86_64.tar.gz'
+    ],
+    [
+      '21.0.5',
+      'macos',
+      'aarch64',
+      'https://github.com/Tencent/TencentKona-21/releases/download/TencentKona-21.0.5/TencentKona-21.0.5.b1_jdk_macosx-aarch64_notarized.tar.gz'
+    ],
+    [
+      '21.0.5',
+      'macos',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-21/releases/download/TencentKona-21.0.5/TencentKona-21.0.5.b1_jdk_macosx-x86_64_notarized.tar.gz'
+    ],
+    [
+      '21.0.5',
+      'windows',
+      'x86_64',
+      'https://github.com/Tencent/TencentKona-21/releases/download/TencentKona-21.0.5/TencentKona-21.0.5.b1_jdk_windows-x86_64_signed.zip'
+    ]
+  ])(
+    'should return the download URL with the specified version "%s", OS "%s" and arch "%s"',
+    async (version: string, os: string, arch: string, expectedUrl: string) => {
+      const distribution = mockDistr(version, os, arch, 'jdk');
+
+      const availableRelease =
+        await distribution['findPackageForDownload'](version);
+      expect(availableRelease).not.toBeNull();
+      expect(availableRelease.url).toBe(expectedUrl);
+    }
+  );
+});
+
+describe('No release is found', () => {
+  it.each([
+    ['8', 'linux', 'x86'],
+    ['8.0.0', 'linux', 'x86_64'],
+    ['11', 'linux', 'ppc64'],
+    ['17', 'solaris', 'x86_64'],
+    ['17', 'windows', 'aarch64'],
+    ['22', 'macos', 'x86_64']
+  ])(
+    `should throw an error due to no release with the specified version "%s", os "%s" and arch "%s"`,
+    async (version: string, os: string, arch: string) => {
+      const distribution = mockDistr(version, os, arch, 'jdk');
+
+      await expect(
+        distribution['findPackageForDownload'](version)
+      ).rejects.toThrow(
+        `No Kona release for the specified version "${version}" on OS "${os}" and arch "${arch}".`
+      );
+    }
+  );
+});
+
+describe('The package type must be jdk', () => {
+  it('should throw an error due to the specified package type is not jdk', async () => {
+    const version = '8.0.20';
+    const os = 'linux';
+    const arch = 'x86_64';
+    const distribution = mockDistr(version, os, arch, 'jre');
+
+    await expect(
+      distribution['findPackageForDownload'](version)
+    ).rejects.toThrow('Kona provides jdk only');
+  });
+});
@@ -1,8 +1,15 @@
-import {MicrosoftDistributions} from '../../src/distributions/microsoft/installer';
+import {
+  MicrosoftDistributions,
+  MICROSOFT_PUBLIC_KEY
+} from '../../src/distributions/microsoft/installer';
 import os from 'os';
 import data from '../data/microsoft.json';
 import * as httpm from '@actions/http-client';
 import * as core from '@actions/core';
+import * as tc from '@actions/tool-cache';
+import * as gpg from '../../src/gpg';
+import * as util from '../../src/util';
+import fs from 'fs';

 describe('findPackageForDownload', () => {
  let distribution: MicrosoftDistributions;
@@ -102,6 +109,7 @@ describe('findPackageForDownload', () => {
      .replace('{{OS_TYPE}}', os)
      .replace('{{ARCHIVE_TYPE}}', archive);
    expect(result.url).toBe(url);
+    expect(result.signatureUrl).toBe(`${url}.sig`);
  });

  it.each([
@@ -187,4 +195,153 @@ describe('findPackageForDownload', () => {
      /No matching version found for SemVer */
    );
  });
+
+  it('uses manifest-provided signature URL when available', async () => {
+    spyGetManifestFromRepo.mockReturnValue({
+      result: [
+        {
+          version: '17.0.10',
+          stable: true,
+          release_url: 'https://example.test',
+          files: [
+            {
+              filename: 'microsoft-jdk-17.0.10-linux-x64.tar.gz',
+              arch: 'x64',
+              platform: 'linux',
+              download_url: 'https://example.test/jdk.tar.gz',
+              signature_url: 'https://example.test/jdk.tar.gz.custom.sig'
+            }
+          ]
+        }
+      ],
+      statusCode: 200,
+      headers: {}
+    });
+    jest.spyOn(os, 'platform').mockReturnValue('linux');
+
+    const result = await distribution['findPackageForDownload']('17.0.10');
+
+    expect(result.signatureUrl).toBe(
+      'https://example.test/jdk.tar.gz.custom.sig'
+    );
+  });
+});
+
+describe('downloadTool', () => {
+  let spyDownloadTool: jest.SpyInstance;
+  let spyExtractJdkFile: jest.SpyInstance;
+  let spyCacheDir: jest.SpyInstance;
+  let spyVerifySignature: jest.SpyInstance;
+  let distribution: MicrosoftDistributions;
+
+  beforeEach(() => {
+    jest
+      .spyOn(os, 'platform')
+      .mockReturnValue(process.platform as ReturnType<typeof os.platform>);
+
+    distribution = new MicrosoftDistributions({
+      version: '17',
+      architecture: 'x64',
+      packageType: 'jdk',
+      checkLatest: false
+    });
+
+    spyDownloadTool = jest.spyOn(tc, 'downloadTool');
+    spyDownloadTool.mockImplementation(async () => {
+      return '/tmp/jdk.tar.gz';
+    });
+
+    spyExtractJdkFile = jest.spyOn(util, 'extractJdkFile');
+    spyExtractJdkFile.mockImplementation(async () => {
+      return '/tmp/unpacked';
+    });
+
+    jest.spyOn(fs, 'readdirSync').mockReturnValue(['jdk'] as any);
+    spyCacheDir = jest.spyOn(tc, 'cacheDir');
+    spyCacheDir.mockImplementation(async () => {
+      return '/tmp/cached';
+    });
+
+    jest
+      .spyOn(util, 'renameWinArchive')
+      .mockImplementation((archivePath: string) => `${archivePath}.zip`);
+
+    spyVerifySignature = jest.spyOn(gpg, 'verifyPackageSignature');
+    spyVerifySignature.mockImplementation(async () => {});
+  });
+
+  afterEach(() => {
+    jest.restoreAllMocks();
+  });
+
+  it('verifies signature when enabled', async () => {
+    const signedDistribution = new MicrosoftDistributions({
+      version: '17',
+      architecture: 'x64',
+      packageType: 'jdk',
+      checkLatest: false,
+      verifySignature: true
+    });
+
+    await signedDistribution['downloadTool']({
+      version: '17.0.14+7',
+      url: 'https://example.com/jdk.tar.gz',
+      signatureUrl: 'https://example.com/jdk.tar.gz.sig'
+    });
+
+    expect(spyVerifySignature).toHaveBeenCalledWith(
+      '/tmp/jdk.tar.gz',
+      'https://example.com/jdk.tar.gz.sig',
+      MICROSOFT_PUBLIC_KEY
+    );
+  });
+
+  it('uses custom public key when verifySignaturePublicKey is provided', async () => {
+    const customKey =
+      '-----BEGIN PGP PUBLIC KEY BLOCK-----\ncustom\n-----END PGP PUBLIC KEY BLOCK-----';
+    const signedDistribution = new MicrosoftDistributions({
+      version: '17',
+      architecture: 'x64',
+      packageType: 'jdk',
+      checkLatest: false,
+      verifySignature: true,
+      verifySignaturePublicKey: customKey
+    });
+
+    await signedDistribution['downloadTool']({
+      version: '17.0.14+7',
+      url: 'https://example.com/jdk.tar.gz',
+      signatureUrl: 'https://example.com/jdk.tar.gz.sig'
+    });
+
+    expect(spyVerifySignature).toHaveBeenCalledWith(
+      '/tmp/jdk.tar.gz',
+      'https://example.com/jdk.tar.gz.sig',
+      customKey
+    );
+  });
+
+  it('fails when signature is missing and verification is enabled', async () => {
+    const signedDistribution = new MicrosoftDistributions({
+      version: '17',
+      architecture: 'x64',
+      packageType: 'jdk',
+      checkLatest: false,
+      verifySignature: true
+    });
+
+    await expect(
+      signedDistribution['downloadTool']({
+        version: '17.0.14+7',
+        url: 'https://example.com/jdk.tar.gz'
+      })
+    ).rejects.toThrow(
+      "Input 'verify-signature' is enabled, but no signature URL was found for Microsoft Build of OpenJDK version 17.0.14+7."
+    );
+    expect(spyVerifySignature).not.toHaveBeenCalled();
+  });
+
+  it('supports signature verification', () => {
+    expect(distribution['supportsSignatureVerification']()).toBe(true);
+  });
 });
@@ -1,10 +1,15 @@
 import {HttpClient} from '@actions/http-client';
+import * as tc from '@actions/tool-cache';
+import fs from 'fs';
 import os from 'os';
 import {
  TemurinDistribution,
-  TemurinImplementation
+  TemurinImplementation,
+  ADOPTIUM_PUBLIC_KEY
 } from '../../src/distributions/temurin/installer';
 import {JavaInstallerOptions} from '../../src/distributions/base-models';
+import * as util from '../../src/util';
+import * as gpg from '../../src/gpg';

 import manifestData from '../data/temurin.json';
 import * as core from '@actions/core';
@@ -231,6 +236,7 @@ describe('findPackageForDownload', () => {
    distribution['getAvailableVersions'] = async () => manifestData as any;
    const resolvedVersion = await distribution['findPackageForDownload'](input);
    expect(resolvedVersion.version).toBe(expected);
+    expect(resolvedVersion.signatureUrl).toBeDefined();
  });

  it('version is found but binaries list is empty', async () => {
@@ -281,3 +287,109 @@ describe('findPackageForDownload', () => {
    );
  });
 });
+
+describe('downloadTool', () => {
+  let spyDownloadTool: jest.SpyInstance;
+  let spyVerifySignature: jest.SpyInstance;
+  let spyExtractJdkFile: jest.SpyInstance;
+  let spyCacheDir: jest.SpyInstance;
+  let spyReadDirSync: jest.SpyInstance;
+  let spyRenameWinArchive: jest.SpyInstance;
+
+  beforeEach(() => {
+    spyDownloadTool = jest.spyOn(tc, 'downloadTool');
+    spyDownloadTool.mockResolvedValue('/tmp/jdk.tar.gz');
+    spyVerifySignature = jest.spyOn(gpg, 'verifyPackageSignature');
+    spyVerifySignature.mockResolvedValue(undefined);
+    spyExtractJdkFile = jest.spyOn(util, 'extractJdkFile');
+    spyExtractJdkFile.mockResolvedValue('/tmp/extracted');
+    spyCacheDir = jest.spyOn(tc, 'cacheDir');
+    spyCacheDir.mockResolvedValue('/tmp/toolcache');
+    spyReadDirSync = jest.spyOn(fs, 'readdirSync');
+    spyReadDirSync.mockReturnValue(['jdk-17'] as any);
+    spyRenameWinArchive = jest.spyOn(util, 'renameWinArchive');
+    spyRenameWinArchive.mockReturnValue('/tmp/jdk.tar.gz.zip');
+  });
+
+  afterEach(() => {
+    jest.resetAllMocks();
+    jest.clearAllMocks();
+    jest.restoreAllMocks();
+  });
+
+  it('verifies signature when enabled', async () => {
+    const distribution = new TemurinDistribution(
+      {
+        version: '17',
+        architecture: 'x64',
+        packageType: 'jdk',
+        checkLatest: false,
+        verifySignature: true
+      },
+      TemurinImplementation.Hotspot
+    );
+
+    await distribution['downloadTool']({
+      version: '17.0.14+7',
+      url: 'https://example.com/jdk.tar.gz',
+      signatureUrl: 'https://example.com/jdk.tar.gz.sig'
+    });
+
+    expect(spyVerifySignature).toHaveBeenCalledWith(
+      '/tmp/jdk.tar.gz',
+      'https://example.com/jdk.tar.gz.sig',
+      ADOPTIUM_PUBLIC_KEY
+    );
+  });
+
+  it('fails when signature is missing and verification is enabled', async () => {
+    const distribution = new TemurinDistribution(
+      {
+        version: '17',
+        architecture: 'x64',
+        packageType: 'jdk',
+        checkLatest: false,
+        verifySignature: true
+      },
+      TemurinImplementation.Hotspot
+    );
+
+    await expect(
+      distribution['downloadTool']({
+        version: '17.0.14+7',
+        url: 'https://example.com/jdk.tar.gz'
+      })
+    ).rejects.toThrow(
+      "Input 'verify-signature' is enabled, but no signature URL was found"
+    );
+    expect(spyVerifySignature).not.toHaveBeenCalled();
+  });
+
+  it('uses custom public key when verifySignaturePublicKey is provided', async () => {
+    const customKey =
+      '-----BEGIN PGP PUBLIC KEY BLOCK-----\ncustom\n-----END PGP PUBLIC KEY BLOCK-----';
+    const distribution = new TemurinDistribution(
+      {
+        version: '17',
+        architecture: 'x64',
+        packageType: 'jdk',
+        checkLatest: false,
+        verifySignature: true,
+        verifySignaturePublicKey: customKey
+      },
+      TemurinImplementation.Hotspot
+    );
+
+    await distribution['downloadTool']({
+      version: '17.0.14+7',
+      url: 'https://example.com/jdk.tar.gz',
+      signatureUrl: 'https://example.com/jdk.tar.gz.sig'
+    });
+
+    expect(spyVerifySignature).toHaveBeenCalledWith(
+      '/tmp/jdk.tar.gz',
+      'https://example.com/jdk.tar.gz.sig',
+      customKey
+    );
+  });
+});
@@ -1,6 +1,7 @@
 import * as path from 'path';
 import * as io from '@actions/io';
 import * as exec from '@actions/exec';
+import * as tc from '@actions/tool-cache';
 import * as gpg from '../src/gpg';

 jest.mock('@actions/exec', () => {
@@ -9,6 +10,12 @@ jest.mock('@actions/exec', () => {
  };
 });

+jest.mock('@actions/tool-cache', () => {
+  return {
+    downloadTool: jest.fn()
+  };
+});
+
 const tempDir = path.join(__dirname, 'runner', 'temp');
 process.env['RUNNER_TEMP'] = tempDir;

@@ -25,6 +32,35 @@ describe('gpg tests', () => {
    }
  });

+  describe('toGpgPath', () => {
+    const originalPlatform = process.platform;
+
+    afterEach(() => {
+      Object.defineProperty(process, 'platform', {value: originalPlatform});
+    });
+
+    it('returns path unchanged on non-Windows platforms', () => {
+      Object.defineProperty(process, 'platform', {value: 'linux'});
+      expect(gpg.toGpgPath('/tmp/some/path')).toBe('/tmp/some/path');
+      expect(gpg.toGpgPath('D:\\a\\_temp\\file')).toBe('D:\\a\\_temp\\file');
+    });
+
+    it('converts Windows backslashes and drive letter to POSIX path on Windows', () => {
+      Object.defineProperty(process, 'platform', {value: 'win32'});
+      expect(gpg.toGpgPath('D:\\a\\_temp\\gpg-home')).toBe(
+        '/d/a/_temp/gpg-home'
+      );
+      expect(
+        gpg.toGpgPath('C:\\Users\\runner\\AppData\\Local\\Temp\\key.asc')
+      ).toBe('/c/Users/runner/AppData/Local/Temp/key.asc');
+    });
+
+    it('handles uppercase and lowercase drive letters on Windows', () => {
+      Object.defineProperty(process, 'platform', {value: 'win32'});
+      expect(gpg.toGpgPath('d:\\a\\_temp\\file')).toBe('/d/a/_temp/file');
+    });
+  });
+
  describe('importKey', () => {
    it('attempts to import private key and returns null key id on failure', async () => {
      const privateKey = 'KEY CONTENTS';
@@ -51,5 +87,47 @@ describe('gpg tests', () => {
        expect.anything()
      );
    });
+
+    describe('verifyPackageSignature', () => {
+      it('imports bundled key and verifies package', async () => {
+        const publicKeyContent =
+          '-----BEGIN PGP PUBLIC KEY BLOCK-----\ntest\n-----END PGP PUBLIC KEY BLOCK-----';
+        (tc.downloadTool as jest.Mock).mockResolvedValue('/tmp/jdk.tar.gz.sig');
+        await gpg.verifyPackageSignature(
+          '/tmp/jdk.tar.gz',
+          'https://example.com/jdk.tar.gz.sig',
+          publicKeyContent
+        );
+
+        expect(tc.downloadTool).toHaveBeenCalledWith(
+          'https://example.com/jdk.tar.gz.sig'
+        );
+        expect(exec.exec).toHaveBeenNthCalledWith(
+          1,
+          'gpg',
+          [
+            '--homedir',
+            expect.any(String),
+            '--batch',
+            '--import',
+            expect.stringContaining('public-key.asc')
+          ],
+          expect.objectContaining({silent: true})
+        );
+        expect(exec.exec).toHaveBeenNthCalledWith(
+          2,
+          'gpg',
+          [
+            '--homedir',
+            expect.any(String),
+            '--batch',
+            '--verify',
+            '/tmp/jdk.tar.gz.sig',
+            '/tmp/jdk.tar.gz'
+          ],
+          expect.objectContaining({silent: true})
+        );
+      });
+    });
  });
 });
@@ -0,0 +1,104 @@
+import * as core from '@actions/core';
+
+import {configureMavenArgs} from '../src/maven-args';
+import {
+  INPUT_SHOW_DOWNLOAD_PROGRESS,
+  MAVEN_ARGS_ENV,
+  MAVEN_NO_TRANSFER_PROGRESS_FLAG
+} from '../src/constants';
+
+describe('configureMavenArgs', () => {
+  let inputs: Record<string, string>;
+  let spyGetInput: jest.SpyInstance;
+  let spyExportVariable: jest.SpyInstance;
+  let spyInfo: jest.SpyInstance;
+  let spyDebug: jest.SpyInstance;
+  const originalMavenArgs = process.env[MAVEN_ARGS_ENV];
+
+  beforeEach(() => {
+    inputs = {};
+
+    spyGetInput = jest.spyOn(core, 'getInput');
+    spyGetInput.mockImplementation((name: string) => inputs[name] ?? '');
+
+    spyExportVariable = jest.spyOn(core, 'exportVariable');
+    spyExportVariable.mockImplementation((name: string, value: string) => {
+      process.env[name] = value;
+    });
+
+    spyInfo = jest.spyOn(core, 'info');
+    spyInfo.mockImplementation(() => undefined);
+
+    spyDebug = jest.spyOn(core, 'debug');
+    spyDebug.mockImplementation(() => undefined);
+
+    delete process.env[MAVEN_ARGS_ENV];
+  });
+
+  afterEach(() => {
+    jest.restoreAllMocks();
+    if (originalMavenArgs === undefined) {
+      delete process.env[MAVEN_ARGS_ENV];
+    } else {
+      process.env[MAVEN_ARGS_ENV] = originalMavenArgs;
+    }
+  });
+
+  it('sets MAVEN_ARGS with -ntp by default', () => {
+    configureMavenArgs();
+
+    expect(spyExportVariable).toHaveBeenCalledWith(
+      MAVEN_ARGS_ENV,
+      MAVEN_NO_TRANSFER_PROGRESS_FLAG
+    );
+    expect(process.env[MAVEN_ARGS_ENV]).toBe(MAVEN_NO_TRANSFER_PROGRESS_FLAG);
+  });
+
+  it('does not modify MAVEN_ARGS when show-download-progress is true', () => {
+    inputs[INPUT_SHOW_DOWNLOAD_PROGRESS] = 'true';
+
+    configureMavenArgs();
+
+    expect(spyExportVariable).not.toHaveBeenCalled();
+    expect(process.env[MAVEN_ARGS_ENV]).toBeUndefined();
+  });
+
+  it('preserves an existing MAVEN_ARGS value and appends -ntp', () => {
+    process.env[MAVEN_ARGS_ENV] = '-B -Dstyle.color=always';
+
+    configureMavenArgs();
+
+    expect(spyExportVariable).toHaveBeenCalledWith(
+      MAVEN_ARGS_ENV,
+      `-B -Dstyle.color=always ${MAVEN_NO_TRANSFER_PROGRESS_FLAG}`
+    );
+  });
+
+  it('does not duplicate the flag when -ntp is already present', () => {
+    process.env[MAVEN_ARGS_ENV] = '-B -ntp';
+
+    configureMavenArgs();
+
+    expect(spyExportVariable).not.toHaveBeenCalled();
+    expect(process.env[MAVEN_ARGS_ENV]).toBe('-B -ntp');
+  });
+
+  it('does not duplicate the flag when --no-transfer-progress is already present', () => {
+    process.env[MAVEN_ARGS_ENV] = '--no-transfer-progress -B';
+
+    configureMavenArgs();
+
+    expect(spyExportVariable).not.toHaveBeenCalled();
+    expect(process.env[MAVEN_ARGS_ENV]).toBe('--no-transfer-progress -B');
+  });
+
+  it('keeps the existing MAVEN_ARGS when show-download-progress is true', () => {
+    inputs[INPUT_SHOW_DOWNLOAD_PROGRESS] = 'true';
+    process.env[MAVEN_ARGS_ENV] = '-B';
+
+    configureMavenArgs();
+
+    expect(spyExportVariable).not.toHaveBeenCalled();
+    expect(process.env[MAVEN_ARGS_ENV]).toBe('-B');
+  });
+});
@@ -143,7 +143,20 @@ describe('toolchains tests', () => {
        </toolchain>
      </toolchains>`;
    const result = `<?xml version="1.0"?>
-<toolchains>
+<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.1.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd">
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>17</version>
+      <vendor>Eclipse Temurin</vendor>
+      <id>temurin_17</id>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
+    </configuration>
+  </toolchain>
  <toolchain>
    <type>jdk</type>
    <provides>
@@ -155,6 +168,68 @@ describe('toolchains tests', () => {
      <jdkHome>/opt/jdk/sun/1.6</jdkHome>
    </configuration>
  </toolchain>
+</toolchains>`;
+
+    fs.mkdirSync(m2Dir, {recursive: true});
+    fs.writeFileSync(toolchainsFile, originalFile);
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+
+    await toolchains.createToolchainsSettings({
+      jdkInfo,
+      settingsDirectory: m2Dir,
+      overwriteSettings: true
+    });
+
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+    expect(fs.readFileSync(toolchainsFile, 'utf-8')).toEqual(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    );
+    expect(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    ).toEqual(result);
+  }, 100000);
+
+  it('does not discard custom elements in existing toolchain definitions', async () => {
+    const jdkInfo = {
+      version: '17',
+      vendor: 'Eclipse Temurin',
+      id: 'temurin_17',
+      jdkHome: '/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64'
+    };
+
+    const originalFile = `<toolchains>
+        <toolchain>
+          <type>jdk</type>
+          <provides>
+            <version>1.6</version>
+            <vendor>Sun</vendor>
+            <id>sun_1.6</id>
+            <custom>foo</custom>
+          </provides>
+          <configuration>
+            <jdkHome>/opt/jdk/sun/1.6</jdkHome>
+            <fooHome>/usr/local/bin/bash</fooHome>
+          </configuration>
+        </toolchain>
+      </toolchains>`;
+    const result = `<?xml version="1.0"?>
+<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.1.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd">
  <toolchain>
    <type>jdk</type>
    <provides>
@@ -166,6 +241,544 @@ describe('toolchains tests', () => {
      <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
    </configuration>
  </toolchain>
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>1.6</version>
+      <vendor>Sun</vendor>
+      <id>sun_1.6</id>
+      <custom>foo</custom>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/jdk/sun/1.6</jdkHome>
+      <fooHome>/usr/local/bin/bash</fooHome>
+    </configuration>
+  </toolchain>
+</toolchains>`;
+
+    fs.mkdirSync(m2Dir, {recursive: true});
+    fs.writeFileSync(toolchainsFile, originalFile);
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+
+    await toolchains.createToolchainsSettings({
+      jdkInfo,
+      settingsDirectory: m2Dir,
+      overwriteSettings: true
+    });
+
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+    expect(fs.readFileSync(toolchainsFile, 'utf-8')).toEqual(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    );
+    expect(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    ).toEqual(result);
+  }, 100000);
+
+  it('does not discard existing, custom toolchain definitions', async () => {
+    const jdkInfo = {
+      version: '17',
+      vendor: 'Eclipse Temurin',
+      id: 'temurin_17',
+      jdkHome: '/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64'
+    };
+
+    const originalFile = `<toolchains>
+        <toolchain>
+            <type>foo</type>
+            <provides>
+                <custom>baz</custom>
+            </provides>
+            <configuration>
+                <fooHome>/usr/local/bin/foo</fooHome>
+            </configuration>
+        </toolchain>
+      </toolchains>`;
+    const result = `<?xml version="1.0"?>
+<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.1.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd">
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>17</version>
+      <vendor>Eclipse Temurin</vendor>
+      <id>temurin_17</id>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
+    </configuration>
+  </toolchain>
+  <toolchain>
+    <type>foo</type>
+    <provides>
+      <custom>baz</custom>
+    </provides>
+    <configuration>
+      <fooHome>/usr/local/bin/foo</fooHome>
+    </configuration>
+  </toolchain>
+</toolchains>`;
+
+    fs.mkdirSync(m2Dir, {recursive: true});
+    fs.writeFileSync(toolchainsFile, originalFile);
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+
+    await toolchains.createToolchainsSettings({
+      jdkInfo,
+      settingsDirectory: m2Dir,
+      overwriteSettings: true
+    });
+
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+    expect(fs.readFileSync(toolchainsFile, 'utf-8')).toEqual(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    );
+    expect(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    ).toEqual(result);
+  }, 100000);
+
+  it('does not duplicate existing toolchain definitions', async () => {
+    const jdkInfo = {
+      version: '17',
+      vendor: 'Eclipse Temurin',
+      id: 'temurin_17',
+      jdkHome: '/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64'
+    };
+
+    const originalFile = `<toolchains>
+      <toolchain>
+        <type>jdk</type>
+        <provides>
+          <version>17</version>
+          <vendor>Eclipse Temurin</vendor>
+          <id>temurin_17</id>
+        </provides>
+        <configuration>
+          <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
+        </configuration>
+      </toolchain>
+      </toolchains>`;
+    const result = `<?xml version="1.0"?>
+<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.1.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd">
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>17</version>
+      <vendor>Eclipse Temurin</vendor>
+      <id>temurin_17</id>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
+    </configuration>
+  </toolchain>
+</toolchains>`;
+
+    fs.mkdirSync(m2Dir, {recursive: true});
+    fs.writeFileSync(toolchainsFile, originalFile);
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+
+    await toolchains.createToolchainsSettings({
+      jdkInfo,
+      settingsDirectory: m2Dir,
+      overwriteSettings: true
+    });
+
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+    expect(fs.readFileSync(toolchainsFile, 'utf-8')).toEqual(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    );
+    expect(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    ).toEqual(result);
+  }, 100000);
+
+  it('does not duplicate existing toolchain definitions if multiple exist', async () => {
+    const jdkInfo = {
+      version: '17',
+      vendor: 'Eclipse Temurin',
+      id: 'temurin_17',
+      jdkHome: '/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64'
+    };
+
+    const originalFile = `<toolchains>
+        <toolchain>
+          <type>jdk</type>
+          <provides>
+            <version>1.6</version>
+            <vendor>Sun</vendor>
+            <id>sun_1.6</id>
+          </provides>
+          <configuration>
+            <jdkHome>/opt/jdk/sun/1.6</jdkHome>
+          </configuration>
+        </toolchain>
+      <toolchain>
+        <type>jdk</type>
+        <provides>
+          <version>17</version>
+          <vendor>Eclipse Temurin</vendor>
+          <id>temurin_17</id>
+        </provides>
+        <configuration>
+          <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
+        </configuration>
+      </toolchain>
+      </toolchains>`;
+    const result = `<?xml version="1.0"?>
+<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.1.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd">
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>17</version>
+      <vendor>Eclipse Temurin</vendor>
+      <id>temurin_17</id>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
+    </configuration>
+  </toolchain>
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>1.6</version>
+      <vendor>Sun</vendor>
+      <id>sun_1.6</id>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/jdk/sun/1.6</jdkHome>
+    </configuration>
+  </toolchain>
+</toolchains>`;
+
+    fs.mkdirSync(m2Dir, {recursive: true});
+    fs.writeFileSync(toolchainsFile, originalFile);
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+
+    await toolchains.createToolchainsSettings({
+      jdkInfo,
+      settingsDirectory: m2Dir,
+      overwriteSettings: true
+    });
+
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+    expect(fs.readFileSync(toolchainsFile, 'utf-8')).toEqual(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    );
+    expect(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    ).toEqual(result);
+  }, 100000);
+
+  it('handles an empty list of existing toolchains correctly', async () => {
+    const jdkInfo = {
+      version: '17',
+      vendor: 'Eclipse Temurin',
+      id: 'temurin_17',
+      jdkHome: '/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64'
+    };
+
+    const originalFile = `<toolchains>
+      </toolchains>`;
+    const result = `<?xml version="1.0"?>
+<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.1.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd">
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>17</version>
+      <vendor>Eclipse Temurin</vendor>
+      <id>temurin_17</id>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
+    </configuration>
+  </toolchain>
+</toolchains>`;
+
+    fs.mkdirSync(m2Dir, {recursive: true});
+    fs.writeFileSync(toolchainsFile, originalFile);
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+
+    await toolchains.createToolchainsSettings({
+      jdkInfo,
+      settingsDirectory: m2Dir,
+      overwriteSettings: true
+    });
+
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+    expect(fs.readFileSync(toolchainsFile, 'utf-8')).toEqual(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    );
+    expect(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    ).toEqual(result);
+  }, 100000);
+
+  it('handles an empty existing toolchains.xml correctly', async () => {
+    const jdkInfo = {
+      version: '17',
+      vendor: 'Eclipse Temurin',
+      id: 'temurin_17',
+      jdkHome: '/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64'
+    };
+
+    const originalFile = ``;
+    const result = `<?xml version="1.0"?>
+<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.1.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd">
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>17</version>
+      <vendor>Eclipse Temurin</vendor>
+      <id>temurin_17</id>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
+    </configuration>
+  </toolchain>
+</toolchains>`;
+
+    fs.mkdirSync(m2Dir, {recursive: true});
+    fs.writeFileSync(toolchainsFile, originalFile);
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+
+    await toolchains.createToolchainsSettings({
+      jdkInfo,
+      settingsDirectory: m2Dir,
+      overwriteSettings: true
+    });
+
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+    expect(fs.readFileSync(toolchainsFile, 'utf-8')).toEqual(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    );
+    expect(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    ).toEqual(result);
+  }, 100000);
+
+  it('preserves custom root attributes on existing toolchains.xml', async () => {
+    const jdkInfo = {
+      version: '17',
+      vendor: 'Eclipse Temurin',
+      id: 'temurin_17',
+      jdkHome: '/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64'
+    };
+
+    const originalFile = `<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.0.0 http://maven.apache.org/xsd/toolchains-1.0.0.xsd">
+        <toolchain>
+          <type>jdk</type>
+          <provides>
+            <version>1.6</version>
+            <vendor>Sun</vendor>
+            <id>sun_1.6</id>
+          </provides>
+          <configuration>
+            <jdkHome>/opt/jdk/sun/1.6</jdkHome>
+          </configuration>
+        </toolchain>
+      </toolchains>`;
+    const result = `<?xml version="1.0"?>
+<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.0.0 http://maven.apache.org/xsd/toolchains-1.0.0.xsd">
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>17</version>
+      <vendor>Eclipse Temurin</vendor>
+      <id>temurin_17</id>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
+    </configuration>
+  </toolchain>
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>1.6</version>
+      <vendor>Sun</vendor>
+      <id>sun_1.6</id>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/jdk/sun/1.6</jdkHome>
+    </configuration>
+  </toolchain>
+</toolchains>`;
+
+    fs.mkdirSync(m2Dir, {recursive: true});
+    fs.writeFileSync(toolchainsFile, originalFile);
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+
+    await toolchains.createToolchainsSettings({
+      jdkInfo,
+      settingsDirectory: m2Dir,
+      overwriteSettings: true
+    });
+
+    expect(fs.existsSync(m2Dir)).toBe(true);
+    expect(fs.existsSync(toolchainsFile)).toBe(true);
+    expect(fs.readFileSync(toolchainsFile, 'utf-8')).toEqual(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    );
+    expect(
+      toolchains.generateToolchainDefinition(
+        originalFile,
+        jdkInfo.version,
+        jdkInfo.vendor,
+        jdkInfo.id,
+        jdkInfo.jdkHome
+      )
+    ).toEqual(result);
+  }, 100000);
+
+  it('keeps partially-formed jdk toolchains without an id instead of crashing', async () => {
+    const jdkInfo = {
+      version: '17',
+      vendor: 'Eclipse Temurin',
+      id: 'temurin_17',
+      jdkHome: '/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64'
+    };
+
+    const originalFile = `<toolchains>
+        <toolchain>
+          <type>jdk</type>
+          <provides>
+            <version>1.6</version>
+            <vendor>Sun</vendor>
+          </provides>
+          <configuration>
+            <jdkHome>/opt/jdk/sun/1.6</jdkHome>
+          </configuration>
+        </toolchain>
+      </toolchains>`;
+    const result = `<?xml version="1.0"?>
+<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.1.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd">
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>17</version>
+      <vendor>Eclipse Temurin</vendor>
+      <id>temurin_17</id>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/hostedtoolcache/Java_Temurin-Hotspot_jdk/17.0.1-12/x64</jdkHome>
+    </configuration>
+  </toolchain>
+  <toolchain>
+    <type>jdk</type>
+    <provides>
+      <version>1.6</version>
+      <vendor>Sun</vendor>
+    </provides>
+    <configuration>
+      <jdkHome>/opt/jdk/sun/1.6</jdkHome>
+    </configuration>
+  </toolchain>
 </toolchains>`;

    fs.mkdirSync(m2Dir, {recursive: true});
@@ -26,6 +26,13 @@ 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
+  verify-signature:
+    description: 'Verify downloaded Java package signatures when supported by the selected distribution'
+    required: false
+    default: false
+  verify-signature-public-key:
+    description: 'ASCII-armored GPG public key used to verify the downloaded package signature. Overrides the default bundled key for the selected distribution.'
+    required: false
  server-id:
    description: 'ID of the distributionManagement repository in the pom.xml
       file. Default is `github`'
@@ -75,6 +82,10 @@ inputs:
  mvn-toolchain-vendor:
    description: 'Name of Maven Toolchain Vendor if the default name of "${distribution}" is not wanted. See examples of supported syntax in Advanced Usage file'
    required: false
+  show-download-progress:
+    description: 'Whether Maven should print artifact download/transfer progress to the build log. When "false" (default) the action sets "-ntp" (--no-transfer-progress) in MAVEN_ARGS to produce cleaner logs. Set to "true" to keep the progress output. Has no effect on non-Maven builds.'
+    required: false
+    default: false
 outputs:
  distribution:
    description: 'Distribution of Java that has been installed'
@@ -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_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.MAVEN_NO_TRANSFER_PROGRESS_LONG_FLAG = exports.MAVEN_NO_TRANSFER_PROGRESS_FLAG = exports.MAVEN_ARGS_ENV = exports.INPUT_SHOW_DOWNLOAD_PROGRESS = 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_VERIFY_SIGNATURE_PUBLIC_KEY = exports.INPUT_VERIFY_SIGNATURE = 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';
@@ -52250,6 +52250,8 @@ exports.INPUT_JAVA_PACKAGE = 'java-package';
 exports.INPUT_DISTRIBUTION = 'distribution';
 exports.INPUT_JDK_FILE = 'jdkFile';
 exports.INPUT_CHECK_LATEST = 'check-latest';
+exports.INPUT_VERIFY_SIGNATURE = 'verify-signature';
+exports.INPUT_VERIFY_SIGNATURE_PUBLIC_KEY = 'verify-signature-public-key';
 exports.INPUT_SERVER_ID = 'server-id';
 exports.INPUT_SERVER_USERNAME = 'server-username';
 exports.INPUT_SERVER_PASSWORD = 'server-password';
@@ -52268,6 +52270,10 @@ exports.MVN_SETTINGS_FILE = 'settings.xml';
 exports.MVN_TOOLCHAINS_FILE = 'toolchains.xml';
 exports.INPUT_MVN_TOOLCHAIN_ID = 'mvn-toolchain-id';
 exports.INPUT_MVN_TOOLCHAIN_VENDOR = 'mvn-toolchain-vendor';
+exports.INPUT_SHOW_DOWNLOAD_PROGRESS = 'show-download-progress';
+exports.MAVEN_ARGS_ENV = 'MAVEN_ARGS';
+exports.MAVEN_NO_TRANSFER_PROGRESS_FLAG = '-ntp';
+exports.MAVEN_NO_TRANSFER_PROGRESS_LONG_FLAG = '--no-transfer-progress';
 exports.DISTRIBUTIONS_ONLY_MAJOR_VERSION = ['corretto'];


@@ -52311,14 +52317,27 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
    });
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.deleteKey = exports.importKey = exports.PRIVATE_KEY_FILE = void 0;
+exports.verifyPackageSignature = exports.deleteKey = exports.importKey = exports.toGpgPath = exports.PRIVATE_KEY_FILE = void 0;
 const fs = __importStar(__nccwpck_require__(79896));
 const path = __importStar(__nccwpck_require__(16928));
 const io = __importStar(__nccwpck_require__(94994));
 const exec = __importStar(__nccwpck_require__(95236));
+const tc = __importStar(__nccwpck_require__(33472));
 const util = __importStar(__nccwpck_require__(54527));
 exports.PRIVATE_KEY_FILE = path.join(util.getTempDir(), 'private-key.asc');
 const PRIVATE_KEY_FINGERPRINT_REGEX = /\w{40}/;
+// Convert a Windows path (D:\a\_temp\...) to a POSIX path (/d/a/_temp/...).
+// The Git-bundled GPG on Windows (MSYS2-based) uses POSIX path conventions
+// internally. Passing Windows paths with backslashes can cause fatal GPG errors
+// (exit code 2), so all paths passed to GPG must be in POSIX format on Windows.
+function toGpgPath(p) {
+    if (process.platform !== 'win32')
+        return p;
+    return p
+        .replace(/\\/g, '/')
+        .replace(/^([A-Za-z]):\//, (_, drive) => `/${drive.toLowerCase()}/`);
+}
+exports.toGpgPath = toGpgPath;
 function importKey(privateKey) {
    return __awaiter(this, void 0, void 0, function* () {
        fs.writeFileSync(exports.PRIVATE_KEY_FILE, privateKey, {
@@ -52355,6 +52374,49 @@ function deleteKey(keyFingerprint) {
    });
 }
 exports.deleteKey = deleteKey;
+function verifyPackageSignature(archivePath, signatureUrl, publicKeyContent) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const signaturePath = yield tc.downloadTool(signatureUrl);
+        let gpgHome;
+        try {
+            gpgHome = fs.mkdtempSync(path.join(util.getTempDir(), 'verify-signature-gpg-home-'));
+        }
+        catch (error) {
+            try {
+                yield io.rmRF(signaturePath);
+            }
+            catch (_a) {
+                // ignore cleanup failures
+            }
+            throw new Error(`Failed to create temporary GPG home directory for signature verification: ${error.message}`);
+        }
+        try {
+            const publicKeyFile = path.join(gpgHome, 'public-key.asc');
+            fs.writeFileSync(publicKeyFile, publicKeyContent, { encoding: 'utf-8' });
+            const options = { silent: true };
+            yield exec.exec('gpg', [
+                '--homedir',
+                toGpgPath(gpgHome),
+                '--batch',
+                '--import',
+                toGpgPath(publicKeyFile)
+            ], options);
+            yield exec.exec('gpg', [
+                '--homedir',
+                toGpgPath(gpgHome),
+                '--batch',
+                '--verify',
+                toGpgPath(signaturePath),
+                toGpgPath(archivePath)
+            ], options);
+        }
+        finally {
+            yield io.rmRF(signaturePath);
+            yield io.rmRF(gpgHome);
+        }
+    });
+}
+exports.verifyPackageSignature = verifyPackageSignature;


 /***/ }),
@@ -77727,6 +77727,7 @@ function generate(id, username, password, gpgPassphrase) {
            '@xmlns': 'http://maven.apache.org/SETTINGS/1.0.0',
            '@xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
            '@xsi:schemaLocation': 'http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd',
+            interactiveMode: false,
            servers: {
                server: [
                    {
@@ -78000,7 +78001,7 @@ 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_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.MAVEN_NO_TRANSFER_PROGRESS_LONG_FLAG = exports.MAVEN_NO_TRANSFER_PROGRESS_FLAG = exports.MAVEN_ARGS_ENV = exports.INPUT_SHOW_DOWNLOAD_PROGRESS = 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_VERIFY_SIGNATURE_PUBLIC_KEY = exports.INPUT_VERIFY_SIGNATURE = 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';
@@ -78009,6 +78010,8 @@ exports.INPUT_JAVA_PACKAGE = 'java-package';
 exports.INPUT_DISTRIBUTION = 'distribution';
 exports.INPUT_JDK_FILE = 'jdkFile';
 exports.INPUT_CHECK_LATEST = 'check-latest';
+exports.INPUT_VERIFY_SIGNATURE = 'verify-signature';
+exports.INPUT_VERIFY_SIGNATURE_PUBLIC_KEY = 'verify-signature-public-key';
 exports.INPUT_SERVER_ID = 'server-id';
 exports.INPUT_SERVER_USERNAME = 'server-username';
 exports.INPUT_SERVER_PASSWORD = 'server-password';
@@ -78027,6 +78030,10 @@ exports.MVN_SETTINGS_FILE = 'settings.xml';
 exports.MVN_TOOLCHAINS_FILE = 'toolchains.xml';
 exports.INPUT_MVN_TOOLCHAIN_ID = 'mvn-toolchain-id';
 exports.INPUT_MVN_TOOLCHAIN_VENDOR = 'mvn-toolchain-vendor';
+exports.INPUT_SHOW_DOWNLOAD_PROGRESS = 'show-download-progress';
+exports.MAVEN_ARGS_ENV = 'MAVEN_ARGS';
+exports.MAVEN_NO_TRANSFER_PROGRESS_FLAG = '-ntp';
+exports.MAVEN_NO_TRANSFER_PROGRESS_LONG_FLAG = '--no-transfer-progress';
 exports.DISTRIBUTIONS_ONLY_MAJOR_VERSION = ['corretto'];


@@ -78308,6 +78315,7 @@ const constants_1 = __nccwpck_require__(27242);
 const os_1 = __importDefault(__nccwpck_require__(70857));
 class JavaBase {
    constructor(distribution, installerOptions) {
+        var _a;
        this.distribution = distribution;
        this.http = new httpm.HttpClient('actions/setup-java', undefined, {
            allowRetries: true,
@@ -78317,10 +78325,15 @@ class JavaBase {
        this.architecture = installerOptions.architecture || os_1.default.arch();
        this.packageType = installerOptions.packageType;
        this.checkLatest = installerOptions.checkLatest;
+        this.verifySignature = (_a = installerOptions.verifySignature) !== null && _a !== void 0 ? _a : false;
+        this.verifySignaturePublicKey = installerOptions.verifySignaturePublicKey;
    }
    setupJava() {
        var _a, _b;
        return __awaiter(this, void 0, void 0, function* () {
+            if (this.verifySignature && !this.supportsSignatureVerification()) {
+                throw new Error(`Input 'verify-signature' is not supported for distribution '${this.distribution}'.`);
+            }
            let foundJava = this.findInToolcache();
            if (foundJava && !this.checkLatest) {
                core.info(`Resolved Java ${foundJava.version} from tool-cache`);
@@ -78440,6 +78453,9 @@ class JavaBase {
    get toolcacheFolderName() {
        return `Java_${this.distribution}_${this.packageType}`;
    }
+    supportsSignatureVerification() {
+        return false;
+    }
    getToolcacheVersionName(version) {
        if (!this.stable) {
            if (version.includes('+')) {
@@ -78755,6 +78771,7 @@ const installer_10 = __nccwpck_require__(37675);
 const installer_11 = __nccwpck_require__(17557);
 const installer_12 = __nccwpck_require__(26968);
 const installer_13 = __nccwpck_require__(62282);
+const installer_14 = __nccwpck_require__(48151);
 var JavaDistribution;
 (function (JavaDistribution) {
    JavaDistribution["Adopt"] = "adopt";
@@ -78771,7 +78788,9 @@ var JavaDistribution;
    JavaDistribution["Dragonwell"] = "dragonwell";
    JavaDistribution["SapMachine"] = "sapmachine";
    JavaDistribution["GraalVM"] = "graalvm";
+    JavaDistribution["GraalVMCommunity"] = "graalvm-community";
    JavaDistribution["JetBrains"] = "jetbrains";
+    JavaDistribution["Kona"] = "kona";
 })(JavaDistribution || (JavaDistribution = {}));
 function getJavaDistribution(distributionName, installerOptions, jdkFile) {
    switch (distributionName) {
@@ -78802,8 +78821,12 @@ function getJavaDistribution(distributionName, installerOptions, jdkFile) {
            return new installer_11.SapMachineDistribution(installerOptions);
        case JavaDistribution.GraalVM:
            return new installer_12.GraalVMDistribution(installerOptions);
+        case JavaDistribution.GraalVMCommunity:
+            return new installer_12.GraalVMCommunityDistribution(installerOptions);
        case JavaDistribution.JetBrains:
            return new installer_13.JetBrainsDistribution(installerOptions);
+        case JavaDistribution.Kona:
+            return new installer_14.KonaDistribution(installerOptions);
        default:
            return null;
    }
@@ -79069,23 +79092,29 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.GraalVMDistribution = void 0;
+exports.GraalVMCommunityDistribution = exports.GraalVMDistribution = void 0;
 const core = __importStar(__nccwpck_require__(37484));
 const tc = __importStar(__nccwpck_require__(33472));
 const fs_1 = __importDefault(__nccwpck_require__(79896));
 const path_1 = __importDefault(__nccwpck_require__(16928));
+const semver_1 = __importDefault(__nccwpck_require__(62088));
 const base_installer_1 = __nccwpck_require__(79935);
 const http_client_1 = __nccwpck_require__(54844);
 const util_1 = __nccwpck_require__(54527);
 const GRAALVM_DL_BASE = 'https://download.oracle.com/graalvm';
 const GRAALVM_DOWNLOAD_URL = 'https://www.graalvm.org/downloads/';
+const GRAALVM_COMMUNITY_RELEASES_URL = 'https://api.github.com/repos/graalvm/graalvm-ce-builds/releases?per_page=100';
+const GRAALVM_COMMUNITY_RELEASES_PAGE_ORIGIN = 'https://api.github.com';
+const GRAALVM_COMMUNITY_DOWNLOAD_URL = 'https://github.com/graalvm/graalvm-ce-builds/releases';
+const GRAALVM_COMMUNITY_ASSET_PREFIX = 'graalvm-community-jdk-';
+const GRAALVM_COMMUNITY_VERSION_PATTERN = /^\d+(?:\.\d+)*$/;
 const IS_WINDOWS = process.platform === 'win32';
 const GRAALVM_PLATFORM = IS_WINDOWS ? 'windows' : process.platform;
 const GRAALVM_MIN_VERSION = 17;
 const SUPPORTED_ARCHITECTURES = ['x64', 'aarch64'];
 class GraalVMDistribution extends base_installer_1.JavaBase {
-    constructor(installerOptions) {
-        super('GraalVM', installerOptions);
+    constructor(installerOptions, distributionName = 'GraalVM') {
+        super(distributionName, installerOptions);
    }
    downloadTool(javaRelease) {
        return __awaiter(this, void 0, void 0, function* () {
@@ -79119,36 +79148,50 @@ class GraalVMDistribution extends base_installer_1.JavaBase {
    }
    findPackageForDownload(range) {
        return __awaiter(this, void 0, void 0, function* () {
-            // Add input validation
-            if (!range || typeof range !== 'string') {
-                throw new Error('Version range is required and must be a string');
-            }
-            const arch = this.distributionArchitecture();
-            if (!SUPPORTED_ARCHITECTURES.includes(arch)) {
-                throw new Error(`Unsupported architecture: ${this.architecture}. Supported architectures are: ${SUPPORTED_ARCHITECTURES.join(', ')}`);
-            }
+            this.validateVersionRange(range);
+            const arch = this.getSupportedArchitecture();
            if (!this.stable) {
                return this.findEABuildDownloadUrl(`${range}-ea`);
            }
-            if (this.packageType !== 'jdk') {
-                throw new Error('GraalVM provides only the `jdk` package type');
-            }
-            const platform = this.getPlatform();
-            const extension = (0, util_1.getDownloadArchiveExtension)();
-            const major = range.includes('.') ? range.split('.')[0] : range;
-            const majorVersion = parseInt(major);
-            if (isNaN(majorVersion)) {
-                throw new Error(`Invalid version format: ${range}`);
-            }
-            if (majorVersion < GRAALVM_MIN_VERSION) {
-                throw new Error(`GraalVM is only supported for JDK ${GRAALVM_MIN_VERSION} and later. Requested version: ${major}`);
-            }
+            const { platform, extension, major } = this.validateStableBuildRequest(range);
            const fileUrl = this.constructFileUrl(range, major, platform, arch, extension);
            const response = yield this.http.head(fileUrl);
            this.handleHttpResponse(response, range);
            return { url: fileUrl, version: range };
        });
    }
+    validateVersionRange(range) {
+        if (!range || typeof range !== 'string') {
+            throw new Error('Version range is required and must be a string');
+        }
+    }
+    getSupportedArchitecture() {
+        const arch = this.distributionArchitecture();
+        if (!SUPPORTED_ARCHITECTURES.includes(arch)) {
+            throw new Error(`Unsupported architecture: ${this.architecture}. Supported architectures are: ${SUPPORTED_ARCHITECTURES.join(', ')}`);
+        }
+        return arch;
+    }
+    validateStableBuildRequest(range) {
+        if (this.packageType !== 'jdk') {
+            throw new Error(`${this.distribution} provides only the \`jdk\` package type`);
+        }
+        const platform = this.getPlatform();
+        const extension = (0, util_1.getDownloadArchiveExtension)();
+        const major = range.includes('.') ? range.split('.')[0] : range;
+        const majorVersion = parseInt(major);
+        if (isNaN(majorVersion)) {
+            throw new Error(`Invalid version format: ${range}`);
+        }
+        if (majorVersion < GRAALVM_MIN_VERSION) {
+            throw new Error(`${this.distribution} is only supported for JDK ${GRAALVM_MIN_VERSION} and later. Requested version: ${major}`);
+        }
+        return {
+            platform,
+            major,
+            extension
+        };
+    }
    constructFileUrl(range, major, platform, arch, extension) {
        return range.includes('.')
            ? `${GRAALVM_DL_BASE}/${major}/archive/graalvm-jdk-${range}_${platform}-${arch}_bin.${extension}`
@@ -79239,6 +79282,101 @@ class GraalVMDistribution extends base_installer_1.JavaBase {
    }
 }
 exports.GraalVMDistribution = GraalVMDistribution;
+class GraalVMCommunityDistribution extends GraalVMDistribution {
+    constructor(installerOptions) {
+        super(installerOptions, 'GraalVM Community');
+    }
+    get toolcacheFolderName() {
+        return `Java_GraalVM_Community_${this.packageType}`;
+    }
+    findPackageForDownload(range) {
+        return __awaiter(this, void 0, void 0, function* () {
+            this.validateVersionRange(range);
+            if (!this.stable) {
+                throw new Error('GraalVM Community does not provide early access builds');
+            }
+            const arch = this.getSupportedArchitecture();
+            const { platform, extension } = this.validateStableBuildRequest(range);
+            // GraalVM Community asset names embed the platform, architecture and
+            // archive type, e.g. `graalvm-community-jdk-21.0.2_linux-x64_bin.tar.gz`.
+            const assetSuffix = `_${platform}-${arch}_bin.${extension}`;
+            const availableVersions = yield this.getAvailableVersions(assetSuffix);
+            const satisfiedVersion = availableVersions
+                .filter(item => (0, util_1.isVersionSatisfies)(range, item.version))
+                .sort((a, b) => -semver_1.default.compareBuild(a.version, b.version))[0];
+            if (!satisfiedVersion) {
+                const error = this.createVersionNotFoundError(range, availableVersions.map(item => item.version), `Platform: ${platform}`);
+                error.message += `\nPlease check if this version is available at ${GRAALVM_COMMUNITY_DOWNLOAD_URL}.`;
+                throw error;
+            }
+            return satisfiedVersion;
+        });
+    }
+    getAvailableVersions(assetSuffix) {
+        var _a;
+        return __awaiter(this, void 0, void 0, function* () {
+            const headers = (0, util_1.getGitHubHttpHeaders)();
+            const versions = new Map();
+            let releasesUrl = GRAALVM_COMMUNITY_RELEASES_URL;
+            for (let pageIndex = 0; releasesUrl && pageIndex < util_1.MAX_PAGINATION_PAGES; pageIndex++) {
+                const response = yield this.http.getJson(releasesUrl, headers);
+                // A successful GitHub releases listing is always a JSON array (possibly
+                // empty). Anything else indicates an unexpected/error payload (rate
+                // limiting, auth failure, etc.) that must be surfaced instead of being
+                // silently treated as "no releases", which would later look like a
+                // misleading "version not found" error.
+                if (!Array.isArray(response.result)) {
+                    throw new Error(`Unexpected response while listing GraalVM Community releases from ${releasesUrl} ` +
+                        `(HTTP status code: ${response.statusCode}). Expected a JSON array of releases. ` +
+                        `Please check if the service is available at ${GRAALVM_COMMUNITY_DOWNLOAD_URL}.`);
+                }
+                const releases = response.result;
+                if (releases.length === 0) {
+                    break;
+                }
+                for (const release of releases) {
+                    if (release.draft || release.prerelease) {
+                        continue;
+                    }
+                    for (const asset of (_a = release.assets) !== null && _a !== void 0 ? _a : []) {
+                        const version = this.extractAssetVersion(asset.name, assetSuffix);
+                        if (version) {
+                            versions.set(version, {
+                                version,
+                                url: asset.browser_download_url
+                            });
+                        }
+                    }
+                }
+                releasesUrl = this.getNextReleasesUrl(response.headers);
+            }
+            return [...versions.values()];
+        });
+    }
+    // Returns the GraalVM JDK version encoded in a release asset name when it
+    // matches the requested platform/architecture/archive suffix, otherwise null.
+    extractAssetVersion(assetName, assetSuffix) {
+        if (!assetName.startsWith(GRAALVM_COMMUNITY_ASSET_PREFIX) ||
+            !assetName.endsWith(assetSuffix)) {
+            return null;
+        }
+        const rawVersion = assetName.slice(GRAALVM_COMMUNITY_ASSET_PREFIX.length, -assetSuffix.length);
+        if (!GRAALVM_COMMUNITY_VERSION_PATTERN.test(rawVersion)) {
+            return null;
+        }
+        return (0, util_1.convertVersionToSemver)(rawVersion);
+    }
+    getNextReleasesUrl(headers) {
+        const nextUrl = (0, util_1.getNextPageUrlFromLinkHeader)(headers);
+        if (nextUrl &&
+            !(0, util_1.validatePaginationUrl)(nextUrl, GRAALVM_COMMUNITY_RELEASES_PAGE_ORIGIN)) {
+            core.warning(`Ignoring pagination link with unexpected origin: ${nextUrl}`);
+            return null;
+        }
+        return nextUrl;
+    }
+}
+exports.GraalVMCommunityDistribution = GraalVMCommunityDistribution;


 /***/ }),
@@ -79468,6 +79606,186 @@ class JetBrainsDistribution extends base_installer_1.JavaBase {
 exports.JetBrainsDistribution = JetBrainsDistribution;


+/***/ }),
+
+/***/ 48151:
+/***/ (function(__unused_webpack_module, exports, __nccwpck_require__) {
+
+"use strict";
+
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", ({ value: true }));
+exports.KonaDistribution = void 0;
+const core = __importStar(__nccwpck_require__(37484));
+const tc = __importStar(__nccwpck_require__(33472));
+const semver_1 = __importDefault(__nccwpck_require__(62088));
+const fs_1 = __importDefault(__nccwpck_require__(79896));
+const path_1 = __importDefault(__nccwpck_require__(16928));
+const base_installer_1 = __nccwpck_require__(79935);
+const util_1 = __nccwpck_require__(54527);
+class KonaDistribution extends base_installer_1.JavaBase {
+    constructor(installerOptions) {
+        super('Kona', installerOptions);
+    }
+    downloadTool(javaRelease) {
+        return __awaiter(this, void 0, void 0, function* () {
+            core.info(`Downloading Kona JDK ${javaRelease.version} (${this.distribution}) from ${javaRelease.url} ...`);
+            const javaArchivePath = yield tc.downloadTool(javaRelease.url);
+            core.info(`Extracting Java archive...`);
+            const extension = (0, util_1.getDownloadArchiveExtension)();
+            const archivePath = process.platform === 'win32'
+                ? (0, util_1.renameWinArchive)(javaArchivePath)
+                : javaArchivePath;
+            const extractedJavaPath = yield (0, util_1.extractJdkFile)(archivePath, extension);
+            const archiveName = fs_1.default.readdirSync(extractedJavaPath)[0];
+            const jdkDirectory = path_1.default.join(extractedJavaPath, archiveName);
+            const version = this.getToolcacheVersionName(javaRelease.version);
+            const javaPath = yield tc.cacheDir(jdkDirectory, this.toolcacheFolderName, version, this.architecture);
+            return { version: javaRelease.version, path: javaPath };
+        });
+    }
+    findPackageForDownload(version) {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (!this.stable) {
+                throw new Error('Kona provides stable releases only');
+            }
+            if (this.packageType !== 'jdk') {
+                throw new Error('Kona provides jdk only');
+            }
+            const availableReleases = yield this.getAvailableReleases();
+            const releases = availableReleases
+                .filter(item => {
+                return (0, util_1.isVersionSatisfies)(version, item.version);
+            })
+                .map(item => {
+                return {
+                    version: item.version,
+                    url: item.downloadUrl
+                };
+            })
+                .sort((a, b) => -semver_1.default.compareBuild(a.version, b.version));
+            if (!releases.length) {
+                throw new Error(`No Kona release for the specified version "${version}" on OS "${this.getOs()}" and arch "${this.getArch()}".`);
+            }
+            return releases[0];
+        });
+    }
+    getAvailableReleases() {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (core.isDebug()) {
+                console.time('Retrieving available releases for Kona took'); // eslint-disable-line no-console
+            }
+            const releaseInfo = yield this.fetchReleaseInfo();
+            if (!releaseInfo) {
+                throw new Error(`Couldn't fetch Kona release information`);
+            }
+            const availableReleases = this.chooseReleases(this.getOs(), this.getArch(), releaseInfo);
+            if (core.isDebug()) {
+                core.startGroup('Print information about available releases');
+                console.timeEnd('Retrieving available releases for Kona took'); // eslint-disable-line no-console
+                core.debug(availableReleases.map(item => item.version).join(', '));
+                core.endGroup();
+            }
+            return availableReleases;
+        });
+    }
+    fetchReleaseInfo() {
+        return __awaiter(this, void 0, void 0, function* () {
+            const releasesInfoUrl = 'https://tencent.github.io/konajdk/releases/kona-v1.json';
+            try {
+                core.debug(`Fetching Kona release info from URL: ${releasesInfoUrl}`);
+                return (yield this.http.getJson(releasesInfoUrl))
+                    .result;
+            }
+            catch (err) {
+                core.debug(`Fetching Kona release info from the URL: ${releasesInfoUrl} failed with the error: ${err.message}`);
+                return null;
+            }
+        });
+    }
+    chooseReleases(os, arch, releaseInfo) {
+        const releases = [];
+        for (const majorVersion in releaseInfo) {
+            const versions = releaseInfo[majorVersion];
+            for (const version of versions) {
+                if (!version.latest) {
+                    continue;
+                }
+                for (const file of version.files) {
+                    if (file.os === os && file.arch === arch) {
+                        releases.push({
+                            version: version.version,
+                            jdkVersion: version.jdkVersion,
+                            os: os,
+                            arch: arch,
+                            downloadUrl: version.baseUrl + file.filename,
+                            checksum: file.checksum
+                        });
+                        break;
+                    }
+                }
+            }
+        }
+        return releases;
+    }
+    getOs() {
+        switch (process.platform) {
+            case 'darwin':
+                return 'macos';
+            case 'win32':
+                return 'windows';
+            default:
+                return process.platform;
+        }
+    }
+    getArch() {
+        switch (this.architecture) {
+            case 'arm64':
+                return 'aarch64';
+            case 'x64':
+                return 'x86_64';
+            default:
+                return this.architecture;
+        }
+    }
+}
+exports.KonaDistribution = KonaDistribution;
+
+
 /***/ }),

 /***/ 32063:
@@ -79794,21 +80112,38 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.MicrosoftDistributions = void 0;
+exports.MicrosoftDistributions = exports.MICROSOFT_PUBLIC_KEY = void 0;
 const base_installer_1 = __nccwpck_require__(79935);
 const util_1 = __nccwpck_require__(54527);
+const gpg = __importStar(__nccwpck_require__(88343));
+const microsoft_key_1 = __nccwpck_require__(56286);
 const core = __importStar(__nccwpck_require__(37484));
 const tc = __importStar(__nccwpck_require__(33472));
 const fs_1 = __importDefault(__nccwpck_require__(79896));
 const path_1 = __importDefault(__nccwpck_require__(16928));
+var microsoft_key_2 = __nccwpck_require__(56286);
+Object.defineProperty(exports, "MICROSOFT_PUBLIC_KEY", ({ enumerable: true, get: function () { return microsoft_key_2.MICROSOFT_PUBLIC_KEY; } }));
 class MicrosoftDistributions extends base_installer_1.JavaBase {
    constructor(installerOptions) {
        super('Microsoft', installerOptions);
    }
    downloadTool(javaRelease) {
+        var _a;
        return __awaiter(this, void 0, void 0, function* () {
            core.info(`Downloading Java ${javaRelease.version} (${this.distribution}) from ${javaRelease.url} ...`);
            let javaArchivePath = yield tc.downloadTool(javaRelease.url);
+            if (this.verifySignature) {
+                if (!javaRelease.signatureUrl) {
+                    throw new Error(`Input 'verify-signature' is enabled, but no signature URL was found for Microsoft Build of OpenJDK version ${javaRelease.version}.`);
+                }
+                core.info(`Verifying Java package signature...`);
+                try {
+                    yield gpg.verifyPackageSignature(javaArchivePath, javaRelease.signatureUrl, (_a = this.verifySignaturePublicKey) !== null && _a !== void 0 ? _a : microsoft_key_1.MICROSOFT_PUBLIC_KEY);
+                }
+                catch (error) {
+                    throw new Error(`Failed to verify signature for Microsoft Build of OpenJDK version ${javaRelease.version}. Signature URL: ${javaRelease.signatureUrl}. Error: ${error.message}`);
+                }
+            }
            core.info(`Extracting Java archive...`);
            const extension = (0, util_1.getDownloadArchiveExtension)();
            if (process.platform === 'win32') {
@@ -79822,6 +80157,7 @@ class MicrosoftDistributions extends base_installer_1.JavaBase {
        });
    }
    findPackageForDownload(range) {
+        var _a;
        return __awaiter(this, void 0, void 0, function* () {
            const arch = this.distributionArchitecture();
            if (arch !== 'x64' && arch !== 'aarch64') {
@@ -79842,12 +80178,18 @@ class MicrosoftDistributions extends base_installer_1.JavaBase {
                const availableVersionStrings = manifest.map(item => item.version);
                throw this.createVersionNotFoundError(range, availableVersionStrings);
            }
+            const file = foundRelease.files[0];
+            const signatureUrl = (_a = file.signature_url) !== null && _a !== void 0 ? _a : `${file.download_url}.sig`;
            return {
-                url: foundRelease.files[0].download_url,
+                url: file.download_url,
+                signatureUrl,
                version: foundRelease.version
            };
        });
    }
+    supportsSignatureVerification() {
+        return true;
+    }
    getAvailableVersions() {
        return __awaiter(this, void 0, void 0, function* () {
            // TODO get these dynamically!
@@ -79890,6 +80232,38 @@ class MicrosoftDistributions extends base_installer_1.JavaBase {
 exports.MicrosoftDistributions = MicrosoftDistributions;


+/***/ }),
+
+/***/ 56286:
+/***/ ((__unused_webpack_module, exports) => {
+
+"use strict";
+
+Object.defineProperty(exports, "__esModule", ({ value: true }));
+exports.MICROSOFT_PUBLIC_KEY = void 0;
+// Microsoft Build of OpenJDK GPG signing key
+// Retrieved from: https://download.visualstudio.microsoft.com/download/pr/b90071e2-e0cf-4411-98be-dbeb09d67bf0/8622862bcd54206e158c5abca0582c9b/464279_464280_aoc_20210208.asc
+exports.MICROSOFT_PUBLIC_KEY = `-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: BSN Pgp v1.1.0.0
+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+=rHCS
+-----END PGP PUBLIC KEY BLOCK-----`;
+
+
 /***/ }),

 /***/ 11182:
@@ -80440,6 +80814,50 @@ class SemeruDistribution extends base_installer_1.JavaBase {
 exports.SemeruDistribution = SemeruDistribution;


+/***/ }),
+
+/***/ 80877:
+/***/ ((__unused_webpack_module, exports) => {
+
+"use strict";
+
+Object.defineProperty(exports, "__esModule", ({ value: true }));
+exports.ADOPTIUM_PUBLIC_KEY = void 0;
+// Adoptium GPG signing key (fingerprint: 3B04D753C9050D9A5D343F39843C48A565F8F04B)
+// Retrieved from: https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3B04D753C9050D9A5D343F39843C48A565F8F04B
+exports.ADOPTIUM_PUBLIC_KEY = `-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=XLag
+-----END PGP PUBLIC KEY BLOCK-----`;
+
+
 /***/ }),

 /***/ 91986:
@@ -80483,14 +80901,18 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.TemurinDistribution = exports.TemurinImplementation = void 0;
+exports.TemurinDistribution = exports.TemurinImplementation = exports.ADOPTIUM_PUBLIC_KEY = void 0;
 const core = __importStar(__nccwpck_require__(37484));
 const tc = __importStar(__nccwpck_require__(33472));
 const fs_1 = __importDefault(__nccwpck_require__(79896));
 const path_1 = __importDefault(__nccwpck_require__(16928));
 const semver_1 = __importDefault(__nccwpck_require__(62088));
+const gpg = __importStar(__nccwpck_require__(88343));
+const adoptium_key_1 = __nccwpck_require__(80877);
 const base_installer_1 = __nccwpck_require__(79935);
 const util_1 = __nccwpck_require__(54527);
+var adoptium_key_2 = __nccwpck_require__(80877);
+Object.defineProperty(exports, "ADOPTIUM_PUBLIC_KEY", ({ enumerable: true, get: function () { return adoptium_key_2.ADOPTIUM_PUBLIC_KEY; } }));
 var TemurinImplementation;
 (function (TemurinImplementation) {
    TemurinImplementation["Hotspot"] = "Hotspot";
@@ -80515,7 +80937,8 @@ class TemurinDistribution extends base_installer_1.JavaBase {
                    : item.version_data.semver.replace('-beta+', '+');
                return {
                    version: formattedVersion,
-                    url: item.binaries[0].package.link
+                    url: item.binaries[0].package.link,
+                    signatureUrl: item.binaries[0].package.signature_link
                };
            });
            const satisfiedVersions = availableVersionsWithBinaries
@@ -80532,9 +80955,22 @@ class TemurinDistribution extends base_installer_1.JavaBase {
        });
    }
    downloadTool(javaRelease) {
+        var _a;
        return __awaiter(this, void 0, void 0, function* () {
            core.info(`Downloading Java ${javaRelease.version} (${this.distribution}) from ${javaRelease.url} ...`);
            let javaArchivePath = yield tc.downloadTool(javaRelease.url);
+            if (this.verifySignature) {
+                if (!javaRelease.signatureUrl) {
+                    throw new Error(`Input 'verify-signature' is enabled, but no signature URL was found for Temurin version ${javaRelease.version}.`);
+                }
+                core.info(`Verifying Java package signature...`);
+                try {
+                    yield gpg.verifyPackageSignature(javaArchivePath, javaRelease.signatureUrl, (_a = this.verifySignaturePublicKey) !== null && _a !== void 0 ? _a : adoptium_key_1.ADOPTIUM_PUBLIC_KEY);
+                }
+                catch (error) {
+                    throw new Error(`Failed to verify signature for Temurin version ${javaRelease.version} from ${javaRelease.signatureUrl}: ${error.message}`);
+                }
+            }
            core.info(`Extracting Java archive...`);
            const extension = (0, util_1.getDownloadArchiveExtension)();
            if (process.platform === 'win32') {
@@ -80551,6 +80987,9 @@ class TemurinDistribution extends base_installer_1.JavaBase {
    get toolcacheFolderName() {
        return super.toolcacheFolderName;
    }
+    supportsSignatureVerification() {
+        return true;
+    }
    getAvailableVersions() {
        return __awaiter(this, void 0, void 0, function* () {
            const platform = this.getPlatformOption();
@@ -80843,14 +81282,27 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
    });
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.deleteKey = exports.importKey = exports.PRIVATE_KEY_FILE = void 0;
+exports.verifyPackageSignature = exports.deleteKey = exports.importKey = exports.toGpgPath = exports.PRIVATE_KEY_FILE = void 0;
 const fs = __importStar(__nccwpck_require__(79896));
 const path = __importStar(__nccwpck_require__(16928));
 const io = __importStar(__nccwpck_require__(94994));
 const exec = __importStar(__nccwpck_require__(95236));
+const tc = __importStar(__nccwpck_require__(33472));
 const util = __importStar(__nccwpck_require__(54527));
 exports.PRIVATE_KEY_FILE = path.join(util.getTempDir(), 'private-key.asc');
 const PRIVATE_KEY_FINGERPRINT_REGEX = /\w{40}/;
+// Convert a Windows path (D:\a\_temp\...) to a POSIX path (/d/a/_temp/...).
+// The Git-bundled GPG on Windows (MSYS2-based) uses POSIX path conventions
+// internally. Passing Windows paths with backslashes can cause fatal GPG errors
+// (exit code 2), so all paths passed to GPG must be in POSIX format on Windows.
+function toGpgPath(p) {
+    if (process.platform !== 'win32')
+        return p;
+    return p
+        .replace(/\\/g, '/')
+        .replace(/^([A-Za-z]):\//, (_, drive) => `/${drive.toLowerCase()}/`);
+}
+exports.toGpgPath = toGpgPath;
 function importKey(privateKey) {
    return __awaiter(this, void 0, void 0, function* () {
        fs.writeFileSync(exports.PRIVATE_KEY_FILE, privateKey, {
@@ -80887,6 +81339,130 @@ function deleteKey(keyFingerprint) {
    });
 }
 exports.deleteKey = deleteKey;
+function verifyPackageSignature(archivePath, signatureUrl, publicKeyContent) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const signaturePath = yield tc.downloadTool(signatureUrl);
+        let gpgHome;
+        try {
+            gpgHome = fs.mkdtempSync(path.join(util.getTempDir(), 'verify-signature-gpg-home-'));
+        }
+        catch (error) {
+            try {
+                yield io.rmRF(signaturePath);
+            }
+            catch (_a) {
+                // ignore cleanup failures
+            }
+            throw new Error(`Failed to create temporary GPG home directory for signature verification: ${error.message}`);
+        }
+        try {
+            const publicKeyFile = path.join(gpgHome, 'public-key.asc');
+            fs.writeFileSync(publicKeyFile, publicKeyContent, { encoding: 'utf-8' });
+            const options = { silent: true };
+            yield exec.exec('gpg', [
+                '--homedir',
+                toGpgPath(gpgHome),
+                '--batch',
+                '--import',
+                toGpgPath(publicKeyFile)
+            ], options);
+            yield exec.exec('gpg', [
+                '--homedir',
+                toGpgPath(gpgHome),
+                '--batch',
+                '--verify',
+                toGpgPath(signaturePath),
+                toGpgPath(archivePath)
+            ], options);
+        }
+        finally {
+            yield io.rmRF(signaturePath);
+            yield io.rmRF(gpgHome);
+        }
+    });
+}
+exports.verifyPackageSignature = verifyPackageSignature;
+
+
+/***/ }),
+
+/***/ 38172:
+/***/ (function(__unused_webpack_module, exports, __nccwpck_require__) {
+
+"use strict";
+
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    var desc = Object.getOwnPropertyDescriptor(m, k);
+    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
+      desc = { enumerable: true, get: function() { return m[k]; } };
+    }
+    Object.defineProperty(o, k2, desc);
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
+    Object.defineProperty(o, "default", { enumerable: true, value: v });
+}) : function(o, v) {
+    o["default"] = v;
+});
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
+    __setModuleDefault(result, mod);
+    return result;
+};
+Object.defineProperty(exports, "__esModule", ({ value: true }));
+exports.configureMavenArgs = void 0;
+const core = __importStar(__nccwpck_require__(37484));
+const util_1 = __nccwpck_require__(54527);
+const constants_1 = __nccwpck_require__(27242);
+/**
+ * Configures the MAVEN_ARGS environment variable so that Maven suppresses
+ * artifact transfer/download progress output by default, producing cleaner
+ * CI logs.
+ *
+ * Behavior:
+ * - When `show-download-progress` is `false` (the default), `-ntp`
+ *   (`--no-transfer-progress`) is appended to any existing MAVEN_ARGS value.
+ * - When `show-download-progress` is `true`, MAVEN_ARGS is left untouched so
+ *   the user's own configuration (and Maven's default progress output) is
+ *   preserved.
+ *
+ * The change is idempotent: if MAVEN_ARGS already disables transfer progress
+ * (via `-ntp` or `--no-transfer-progress`) nothing is added. Any pre-existing
+ * MAVEN_ARGS value is preserved.
+ *
+ * MAVEN_ARGS is honored by Maven 3.9.0+ and the Maven Wrapper; older Maven
+ * versions ignore it, so this is a no-op there. It has no effect on non-Maven
+ * builds such as Gradle or sbt.
+ */
+function configureMavenArgs() {
+    var _a;
+    const showDownloadProgress = (0, util_1.getBooleanInput)(constants_1.INPUT_SHOW_DOWNLOAD_PROGRESS, false);
+    if (showDownloadProgress) {
+        core.debug(`${constants_1.INPUT_SHOW_DOWNLOAD_PROGRESS} is true; leaving ${constants_1.MAVEN_ARGS_ENV} unchanged`);
+        return;
+    }
+    const existingArgs = ((_a = process.env[constants_1.MAVEN_ARGS_ENV]) !== null && _a !== void 0 ? _a : '').trim();
+    const alreadyDisabled = existingArgs
+        .split(/\s+/)
+        .some(arg => arg === constants_1.MAVEN_NO_TRANSFER_PROGRESS_FLAG ||
+        arg === constants_1.MAVEN_NO_TRANSFER_PROGRESS_LONG_FLAG);
+    if (alreadyDisabled) {
+        core.debug(`${constants_1.MAVEN_ARGS_ENV} already disables transfer progress; leaving it unchanged`);
+        return;
+    }
+    const updatedArgs = existingArgs
+        ? `${existingArgs} ${constants_1.MAVEN_NO_TRANSFER_PROGRESS_FLAG}`
+        : constants_1.MAVEN_NO_TRANSFER_PROGRESS_FLAG;
+    core.exportVariable(constants_1.MAVEN_ARGS_ENV, updatedArgs);
+    core.info(`Configured ${constants_1.MAVEN_ARGS_ENV} to include ${constants_1.MAVEN_NO_TRANSFER_PROGRESS_FLAG} to suppress Maven transfer progress logs. ` +
+        `Set '${constants_1.INPUT_SHOW_DOWNLOAD_PROGRESS}: true' to keep the download progress output.`);
+}
+exports.configureMavenArgs = configureMavenArgs;


 /***/ }),
@@ -80941,6 +81517,7 @@ const constants = __importStar(__nccwpck_require__(27242));
 const cache_1 = __nccwpck_require__(97377);
 const path = __importStar(__nccwpck_require__(16928));
 const distribution_factory_1 = __nccwpck_require__(2970);
+const maven_args_1 = __nccwpck_require__(38172);
 function run() {
    return __awaiter(this, void 0, void 0, function* () {
        try {
@@ -80955,6 +81532,8 @@ 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 verifySignature = (0, util_1.getBooleanInput)(constants.INPUT_VERIFY_SIGNATURE, false);
+            const verifySignaturePublicKey = core.getInput(constants.INPUT_VERIFY_SIGNATURE_PUBLIC_KEY) || undefined;
            let toolchainIds = core.getMultilineInput(constants.INPUT_MVN_TOOLCHAIN_ID);
            core.startGroup('Installed distributions');
            if (versions.length !== toolchainIds.length) {
@@ -80967,6 +81546,8 @@ function run() {
                architecture,
                packageType,
                checkLatest,
+                verifySignature,
+                verifySignaturePublicKey,
                distributionName,
                jdkFile,
                toolchainIds
@@ -80988,6 +81569,7 @@ function run() {
            const matchersPath = path.join(__dirname, '..', '..', '.github');
            core.info(`##[add-matcher]${path.join(matchersPath, 'java.json')}`);
            yield auth.configureAuthentication();
+            (0, maven_args_1.configureMavenArgs)();
            if (cache && (0, util_1.isCacheFeatureAvailable)()) {
                yield (0, cache_1.restore)(cache, cacheDependencyPath);
            }
@@ -81000,11 +81582,13 @@ function run() {
 run();
 function installVersion(version, options, toolchainId = 0) {
    return __awaiter(this, void 0, void 0, function* () {
-        const { distributionName, jdkFile, architecture, packageType, checkLatest, toolchainIds } = options;
+        const { distributionName, jdkFile, architecture, packageType, checkLatest, verifySignature, verifySignaturePublicKey, toolchainIds } = options;
        const installerOptions = {
            architecture,
            packageType,
            checkLatest,
+            verifySignature,
+            verifySignaturePublicKey,
            version
        };
        const distribution = (0, distribution_factory_1.getJavaDistribution)(distributionName, installerOptions, jdkFile);
@@ -81106,46 +81690,66 @@ function createToolchainsSettings({ jdkInfo, settingsDirectory, overwriteSetting
 exports.createToolchainsSettings = createToolchainsSettings;
 // only exported for testing purposes
 function generateToolchainDefinition(original, version, vendor, id, jdkHome) {
-    let xmlObj;
+    let jsToolchains = [
+        {
+            type: 'jdk',
+            provides: {
+                version: `${version}`,
+                vendor: `${vendor}`,
+                id: `${id}`
+            },
+            configuration: {
+                jdkHome: `${jdkHome}`
+            }
+        }
+    ];
+    // default root attributes, used when the existing file does not declare its own
+    let rootAttributes = {
+        '@xmlns': 'http://maven.apache.org/TOOLCHAINS/1.1.0',
+        '@xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
+        '@xsi:schemaLocation': 'http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd'
+    };
    if (original === null || original === void 0 ? void 0 : original.length) {
-        xmlObj = (0, xmlbuilder2_1.create)(original)
+        // convert existing toolchains into TS native objects for better handling
+        // xmlbuilder2 will convert the document into a `{toolchains: { toolchain: [] | {} }}` structure
+        // instead of the desired `toolchains: [{}]` one or simply `[{}]`
+        const jsObj = (0, xmlbuilder2_1.create)(original)
            .root()
-            .ele({
-            toolchain: {
-                type: 'jdk',
-                provides: {
-                    version: `${version}`,
-                    vendor: `${vendor}`,
-                    id: `${id}`
-                },
-                configuration: {
-                    jdkHome: `${jdkHome}`
+            .toObject();
+        if (jsObj.toolchains) {
+            // preserve the existing root attributes (xmlns, schemaLocation, …) so we don't
+            // silently rewrite user-managed metadata or change the effective XML namespace;
+            // xmlbuilder2 exposes attributes as `@`-prefixed keys on the element object
+            const existingAttributes = Object.fromEntries(Object.entries(jsObj.toolchains).filter(([key]) => key.startsWith('@')));
+            // fall back to the defaults only for attributes the existing file is missing
+            rootAttributes = Object.assign(Object.assign({}, rootAttributes), existingAttributes);
+            if (jsObj.toolchains.toolchain) {
+                // in case only a single child exists xmlbuilder2 will not create an array and using verbose = true equally doesn't work here
+                // See https://oozcitak.github.io/xmlbuilder2/serialization.html#js-object-and-map-serializers for details
+                if (Array.isArray(jsObj.toolchains.toolchain)) {
+                    jsToolchains.push(...jsObj.toolchains.toolchain);
+                }
+                else {
+                    jsToolchains.push(jsObj.toolchains.toolchain);
                }
            }
+        }
+        // remove potential duplicates based on type & id (which should be a unique combination);
+        // self.findIndex will only return the first occurrence, ensuring duplicates are skipped
+        jsToolchains = jsToolchains.filter((value, index, self) => {
+            var _a;
+            // ensure non-jdk toolchains are kept in the results, we must not touch them because they belong to the user
+            return value.type !== 'jdk' ||
+                // keep toolchains that lack a usable string id (e.g. partially-formed user files);
+                // we cannot safely deduplicate them and must not crash while reading them
+                typeof ((_a = value.provides) === null || _a === void 0 ? void 0 : _a.id) !== 'string' ||
+                index ===
+                    self.findIndex(t => { var _a, _b; return t.type === value.type && ((_a = t.provides) === null || _a === void 0 ? void 0 : _a.id) === ((_b = value.provides) === null || _b === void 0 ? void 0 : _b.id); });
        });
    }
-    else
-        xmlObj = (0, xmlbuilder2_1.create)({
-            toolchains: {
-                '@xmlns': 'http://maven.apache.org/TOOLCHAINS/1.1.0',
-                '@xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
-                '@xsi:schemaLocation': 'http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd',
-                toolchain: [
-                    {
-                        type: 'jdk',
-                        provides: {
-                            version: `${version}`,
-                            vendor: `${vendor}`,
-                            id: `${id}`
-                        },
-                        configuration: {
-                            jdkHome: `${jdkHome}`
-                        }
-                    }
-                ]
-            }
-        });
-    return xmlObj.end({
+    return (0, xmlbuilder2_1.create)({
+        toolchains: Object.assign(Object.assign({}, rootAttributes), { toolchain: jsToolchains })
+    }).end({
        format: 'xml',
        wellFormed: false,
        headless: false,
@@ -10,7 +10,9 @@
  - [Alibaba Dragonwell](#Alibaba-Dragonwell)
  - [SapMachine](#SapMachine)
  - [GraalVM](#GraalVM)
+  - [GraalVM Community](#GraalVM-Community)
  - [JetBrains](#JetBrains)
+  - [Tencent Kona](#Tencent-Kona)
 - [Installing custom Java package type](#Installing-custom-Java-package-type)
  - [JavaFX Maven project](#JavaFX-Maven-project)
 - [Installing custom Java architecture](#Installing-custom-Java-architecture)
@@ -18,10 +20,12 @@
 - [Testing against different Java distributions](#Testing-against-different-Java-distributions)
 - [Testing against different platforms](#Testing-against-different-platforms)
 - [Publishing using Apache Maven](#Publishing-using-Apache-Maven)
+- [Maven transfer progress (download logs)](#Maven-transfer-progress-download-logs)
 - [Publishing using Gradle](#Publishing-using-Gradle)
 - [Hosted Tool Cache](#Hosted-Tool-Cache)
 - [Modifying Maven Toolchains](#Modifying-Maven-Toolchains)
 - [Java-version file](#Java-version-file)
+- [Self-signed certificates and internal CAs (GitHub Enterprise)](#Self-signed-certificates-and-internal-CAs-GitHub-Enterprise)

 See [action.yml](../action.yml) for more details on task inputs.

@@ -173,6 +177,21 @@ steps:
    native-image --version
 ```

+### GraalVM Community
+**NOTE:** GraalVM Community is available for stable JDK 17 and later releases.
+
+```yaml
+steps:
+- uses: actions/checkout@v6
+- uses: actions/setup-java@v5
+  with:
+    distribution: 'graalvm-community'
+    java-version: '21'
+- run: |
+    java --version
+    native-image --version
+```
+
 ### JetBrains

 **NOTE:** JetBrains is only available for LTS versions on 11 or later (11, 17, 21, etc.).
@@ -216,6 +235,18 @@ The available package types are:
 - `jdk+ft` - JBRSDK (FreeType)
 - `jre+ft` - JBR (FreeType)

+### Tencent Kona
+**NOTE:** Tencent Kona supports major versions 8, 11, 17 and 21, and provides jdk only.
+
+```yaml
+steps:
+- uses: actions/checkout@v6
+- uses: actions/setup-java@v5
+  with:
+    distribution: 'kona'
+    java-version: '21'
+- run: java --version
+```

 ## Installing custom Java package type
 ```yaml
@@ -269,6 +300,9 @@ steps:
 ## 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:

+> [!NOTE]
+> This approach also lets you use builds that setup-java does not provide directly, such as **Early Access (EA)** or other unreleased JDK builds (for example, an upcoming feature release or a Loom/Valhalla preview build). Download the desired archive in a prior step and point `jdkFile` at it; setup-java will extract, install, and cache it just like a supported distribution. When targeting multiple architectures, select the correct binary per architecture in your workflow (for example, with a build matrix).
+
 ```yaml
 steps:
 - run: |
@@ -284,6 +318,23 @@ steps:
 - run: java --version
 ```

+For example, to use an **Early Access** build from [jdk.java.net](https://jdk.java.net/), download the archive for your runner OS/architecture and install it via `distribution: 'jdkfile'` (example below assumes Linux x64):
+
+```yaml
+steps:
+- run: |
+    download_url="https://download.java.net/java/early_access/jdk25/36/GPL/openjdk-25-ea+36_linux-x64_bin.tar.gz"
+    wget -O $RUNNER_TEMP/java_package.tar.gz $download_url
+- uses: actions/setup-java@v5
+  with:
+    distribution: 'jdkfile'
+    jdkFile: ${{ runner.temp }}/java_package.tar.gz
+    java-version: '25.0.0-ea.36'
+    architecture: x64
+
+- run: java --version
+```
+
 If your use-case requires a custom distribution (in the example, alpine-linux is used) or a version that is not provided by setup-java and you want to always install the latest version during runtime, then you can use the following code to auto-download the latest JDK, determine the semver needed for setup-java, and setup-java will take care of the installation and caching on the VM:

 ```yaml
@@ -399,6 +450,7 @@ The two `settings.xml` files created from the above example look like the follow
 <settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd">
+  <interactiveMode>false</interactiveMode>
  <servers>
    <server>
      <id>github</id>
@@ -418,6 +470,7 @@ The two `settings.xml` files created from the above example look like the follow
 <settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd">
+  <interactiveMode>false</interactiveMode>
  <servers>
    <server>
      <id>maven</id>
@@ -489,6 +542,36 @@ jobs:
        GITHUB_TOKEN: ${{ github.token }}
 ```

+## Maven transfer progress (download logs)
+
+By default, Maven prints a line for every artifact it downloads, which can add hundreds of noisy lines to CI logs. To keep logs clean, `setup-java` sets the [`MAVEN_ARGS`](https://maven.apache.org/configure.html#maven_args-environment-variable) environment variable to include `-ntp` (`--no-transfer-progress`) so that subsequent Maven invocations in the job suppress this transfer progress output.
+
+This is enabled by default. Any existing `MAVEN_ARGS` value is preserved (the flag is appended, not overwritten), and the flag is not added twice if you already set it yourself.
+
+If you want to keep the download/transfer progress in your logs, set `show-download-progress: true`:
+
+```yaml
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v6
+    - uses: actions/setup-java@v5
+      with:
+        distribution: '<distribution>'
+        java-version: '21'
+        show-download-progress: true # keep Maven download/transfer progress in the logs
+
+    - name: Build with Maven
+      run: mvn -B package --file pom.xml
+```
+
+***NOTES***:
+- `MAVEN_ARGS` is honored by Maven 3.9.0+ and the Maven Wrapper (`mvnw`). Older Maven versions ignore it, so on those you can pass `--no-transfer-progress` on the command line instead.
+- This setting only affects Maven. It has no effect on Gradle, sbt, or other build tools.
+- `-ntp` only controls transfer/progress output; it does not change whether Maven runs in batch mode. Use `-B`/`--batch-mode` (or `<interactiveMode>false</interactiveMode>` in `settings.xml`) if you also want non-interactive runs.
+
 ## Publishing using Gradle
 ```yaml
 jobs:
@@ -660,3 +743,94 @@ If the file contains multiple versions, only the first one will be recognized.

 ***NOTE***:
 For the tool-version file, ensure that you use standard semantic versioning (semver) formats, as non-standard formats (such as jetbrains-21b212.1) may not be parsed correctly. Additionally, for complex version strings containing multiple version-like segments (for example, java semeru-openj9-11.0.15+10_openj9-0.32.0), the extraction logic may incorrectly capture the last segment (0.32.0) instead of the main version (11.0.15+10).
+
+## Self-signed certificates and internal CAs (GitHub Enterprise)
+
+When `setup-java` dynamically downloads a JDK, it makes HTTPS requests both to fetch the available version metadata and to download the JDK archive. If your runners sit behind a **TLS-inspecting corporate proxy**, or you are on **GitHub Enterprise Server (GHES)** with an internal certificate authority, those requests can fail with an error such as:
+
+```
+Error: self signed certificate in certificate chain
+```
+
+This happens because the certificate presented to the runner is signed by an **internal or self-signed CA** that is not part of the runner's default trust store. The download itself is fine — the runner simply cannot verify the certificate chain.
+
+### Recommended fix: trust your internal CA
+
+The secure way to resolve this is to make the runner trust your organization's CA, which keeps TLS verification fully enabled. `setup-java` runs on Node.js, which honors the [`NODE_EXTRA_CA_CERTS`](https://nodejs.org/api/cli.html#node_extra_ca_certsfile) environment variable. Point it at your CA bundle (in PEM format) **before** the `actions/setup-java` step:
+
+```yaml
+steps:
+  # The CA bundle is already present on the runner image in this example.
+  # Alternatively, write it from a secret in a previous step.
+  - name: Trust the internal CA
+    run: echo "NODE_EXTRA_CA_CERTS=/etc/ssl/certs/internal-ca.pem" >> "$GITHUB_ENV"
+
+  - uses: actions/setup-java@v5
+    with:
+      distribution: 'temurin'
+      java-version: '21'
+```
+
+If you keep the certificate in a secret rather than on the runner image, write it to disk first:
+
+```yaml
+steps:
+  - name: Write and trust the internal CA
+    run: |
+      echo "${{ secrets.INTERNAL_CA_PEM }}" > "${RUNNER_TEMP}/internal-ca.pem"
+      echo "NODE_EXTRA_CA_CERTS=${RUNNER_TEMP}/internal-ca.pem" >> "$GITHUB_ENV"
+
+  - uses: actions/setup-java@v5
+    with:
+      distribution: 'temurin'
+      java-version: '21'
+```
+
+For **self-hosted runners**, you can instead install your CA into the operating system's trust store (for example, `update-ca-certificates` on Debian/Ubuntu or `update-ca-trust` on RHEL). This makes the certificate trusted for all tooling on the runner, not just `setup-java`.
+
+### GitHub Enterprise customers
+
+On **GitHub Enterprise Server**, traffic from your runners frequently passes through an organization-managed proxy or terminates TLS at an appliance using a certificate from an internal CA. If your workflows hit the error above, set `NODE_EXTRA_CA_CERTS` to your enterprise CA bundle (or bake the CA into your self-hosted runner image) as shown above. Coordinate with your platform team to obtain the correct PEM bundle for your appliance and proxy chain.
+
+### Security warning: do not disable certificate verification
+
+Do **not** work around this error by disabling TLS verification (for example, by setting `NODE_TLS_REJECT_UNAUTHORIZED=0`). `setup-java` does not verify a pinned checksum or signature of the downloaded archive, so **TLS is effectively the only integrity guarantee** on the JDK download. Disabling verification would expose your workflow to a man-in-the-middle attacker who could serve a tampered JDK — which then becomes the `java` used by the rest of your pipeline, with access to your secrets and credentials. Always extend trust to your CA instead of turning verification off.
+
+### Trusting an internal CA inside the installed JDK
+
+The guidance above makes the **runner** trust your CA so that the JDK can be *downloaded*. That is a separate layer from making the **installed JDK** trust your CA at *application runtime*. If your build steps (Maven/Gradle dependency resolution, integration tests, HTTPS calls from your app, etc.) connect to internal services that present a certificate from your internal CA, the JDK will reject them with errors such as:
+
+```
+PKIX path building failed: unable to find valid certification path to requested target
+```
+
+The JDK keeps its own trust store — a keystore named `cacerts` under `$JAVA_HOME/lib/security/cacerts` — which is independent of the operating system and Node trust stores. After `setup-java` has run (so that `JAVA_HOME` points at the freshly installed JDK), import your CA into that keystore with `keytool`:
+
+```yaml
+steps:
+  - uses: actions/setup-java@v5
+    with:
+      distribution: 'temurin'
+      java-version: '21'
+
+  - name: Import internal CA into the JDK trust store
+    shell: bash
+    run: |
+      # Write the CA from a secret (or reference a file already on the runner)
+      echo "${{ secrets.INTERNAL_CA_PEM }}" > "${RUNNER_TEMP}/internal-ca.pem"
+      keytool -importcert -noprompt \
+        -alias internal-ca \
+        -file "${RUNNER_TEMP}/internal-ca.pem" \
+        -keystore "${JAVA_HOME}/lib/security/cacerts" \
+        -storepass changeit
+```
+
+Notes and caveats:
+
+- The default keystore password for `cacerts` is `changeit` unless your distribution overrides it.
+- On **hosted runners** the change applies only to the current job's JDK and is discarded when the job ends, so include the import step in every job that needs it.
+- On **self-hosted runners**, importing into a tool-cache JDK persists for as long as that cached version remains on the runner; if you want it to survive JDK reinstalls, pre-seed the CA into your runner image or re-run the import step each time.
+- Prefer giving the certificate a stable, descriptive `-alias` so re-runs are idempotent (re-importing the same alias will fail; add `keytool -delete -alias internal-ca ...` first if you re-run within a long-lived runner).
+
+This documents the post-install workflow; there is no dedicated action input for supplying a custom `cacerts` file.
+
@@ -63,6 +63,17 @@ Pull requests are the easiest way to contribute changes to git repos at GitHub.
 - To lint the code, **you need to run the `lint:fix` script**
 - To transpile source code to `javascript` we use [NCC](https://github.com/vercel/ncc). **It is very important to run the `build` script after making changes**, otherwise your changes will not get into the final `javascript` build

+> [!TIP]
+> Instead of running each script individually, you can run the aggregate scripts:
+>
+> - `npm run fix` — formats, lints (with autofix) and rebuilds the `dist/` bundle.
+> - `npm run check` — runs the same validation as CI: `format-check`, `lint`, `build` and `test`. **Run this before pushing a pull request** to make sure it will pass the required checks.
+>
+> Git hooks are installed automatically when you run `npm install` (via [husky](https://typicode.github.io/husky/)):
+>
+> - a **pre-commit** hook formats and lints staged files with [lint-staged](https://github.com/lint-staged/lint-staged);
+> - a **pre-push** hook rebuilds `dist/` and runs the test suite.
+
 **Learn more about how to implement tests:**

 Adding or changing tests is an integral part of making a change to the code. 
@@ -24,15 +24,17 @@
        "@types/node": "^26.0.0",
        "@types/semver": "^7.5.8",
        "@typescript-eslint/eslint-plugin": "^8.48.0",
-        "@typescript-eslint/parser": "^8.61.1",
+        "@typescript-eslint/parser": "^8.62.0",
        "@vercel/ncc": "^0.44.0",
        "eslint": "^8.57.0",
        "eslint-config-prettier": "^10.1.8",
-        "eslint-plugin-jest": "^29.0.1",
+        "eslint-plugin-jest": "^29.15.4",
        "eslint-plugin-node": "^11.1.0",
+        "husky": "^9.1.7",
        "jest": "^30.4.2",
        "jest-circus": "^30.4.2",
-        "prettier": "^3.6.2",
+        "lint-staged": "^17.0.8",
+        "prettier": "^3.9.1",
        "ts-jest": "^29.4.11",
        "typescript": "^5.3.3"
      },
@@ -2072,16 +2074,16 @@
      }
    },
    "node_modules/@typescript-eslint/parser": {
-      "version": "8.61.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-8.61.1.tgz",
-      "integrity": "sha512-PJ5vePq5/ognBbrIcoC5+SHO5dfpeLPzP9FpLkzWrguoYQEeeSjlJpVwOpo1JRSTEi7dRcwNy4h4dzV70PqHcg==",
+      "version": "8.62.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-8.62.0.tgz",
+      "integrity": "sha512-dzHeT2gySzZtLDsuqxU9AkYgIsQoHAHtRBpOqM+Ofzx1Bwrd2RcCjQJ+6iQbsHOIR6NS33bF2W1k3blN1zLDrA==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "@typescript-eslint/scope-manager": "8.61.1",
-        "@typescript-eslint/types": "8.61.1",
-        "@typescript-eslint/typescript-estree": "8.61.1",
-        "@typescript-eslint/visitor-keys": "8.61.1",
+        "@typescript-eslint/scope-manager": "8.62.0",
+        "@typescript-eslint/types": "8.62.0",
+        "@typescript-eslint/typescript-estree": "8.62.0",
+        "@typescript-eslint/visitor-keys": "8.62.0",
        "debug": "^4.4.3"
      },
      "engines": {
@@ -2097,14 +2099,14 @@
      }
    },
    "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/project-service": {
-      "version": "8.61.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/project-service/-/project-service-8.61.1.tgz",
-      "integrity": "sha512-PrC4JYGmR241lYnfhmKGTXkFqv8+ymbTFgSAY0fVXpY82/QkMw5TZPl+vGzuDDU2QYJk9fIDOBTntF+yDv9LEA==",
+      "version": "8.62.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/project-service/-/project-service-8.62.0.tgz",
+      "integrity": "sha512-wexnCqiTg7BOGtbLDftYpRWlmLq4xfoMd7BKFR6Y75sZS3QmRKLdN3yWLhmIYgqMmP/OXWpj3H8odkb5nGURCQ==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "@typescript-eslint/tsconfig-utils": "^8.61.1",
-        "@typescript-eslint/types": "^8.61.1",
+        "@typescript-eslint/tsconfig-utils": "^8.62.0",
+        "@typescript-eslint/types": "^8.62.0",
        "debug": "^4.4.3"
      },
      "engines": {
@@ -2119,14 +2121,14 @@
      }
    },
    "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/scope-manager": {
-      "version": "8.61.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-8.61.1.tgz",
-      "integrity": "sha512-L2bdIeoQS8FlKAvONAr20w6OcLXeB+qiDKbAooS9A0Ben+iSIkBef0FxqwKWYqt5sa0i4KJtxVyVmhMylKzF5w==",
+      "version": "8.62.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-8.62.0.tgz",
+      "integrity": "sha512-1lX38kNxXIRb8mEc3lbq5mdHq1Pf2+U0nFU65KfT18mtPxxl0fvjuEE92mHuXPuCtElJhOrddOpyMlM3Z0umEA==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "@typescript-eslint/types": "8.61.1",
-        "@typescript-eslint/visitor-keys": "8.61.1"
+        "@typescript-eslint/types": "8.62.0",
+        "@typescript-eslint/visitor-keys": "8.62.0"
      },
      "engines": {
        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
@@ -2137,9 +2139,9 @@
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    },
    "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/tsconfig-utils": {
-      "version": "8.61.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.61.1.tgz",
-      "integrity": "sha512-UN/H4di+OO7EWx2ovME+8t31YO+KVnK0RRKEHR3kOt21/Ay8BOq3M1OMvWs5vNiqcFCYGYoxK3MXPZzmMUE+yg==",
+      "version": "8.62.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/tsconfig-utils/-/tsconfig-utils-8.62.0.tgz",
+      "integrity": "sha512-y2GAdB6ykaXUvuspbYnizQc4oDDz0Tz/Yc7iWrXf9mx8vm/L/0vLHCe0tS2boG96Zy+DivnVDQ9ZUEWoHqqx1g==",
      "dev": true,
      "license": "MIT",
      "engines": {
@@ -2154,9 +2156,9 @@
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    },
    "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/types": {
-      "version": "8.61.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.61.1.tgz",
-      "integrity": "sha512-G+CRlPqLv7Bz1IZVs03x5K59F1veqL0EJUROAdGhKsEq8qOiRiZbI+HUojPq5l0fEGOKModD9br6lObhB8zkoA==",
+      "version": "8.62.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.62.0.tgz",
+      "integrity": "sha512-KvAclkktORPvM54TgLgA4z9HIV1M8zOgw9ZVNXl9f/8dLYfXYX1wkMXP7qmabpijQRV5bHJLOmoyGQbLMaUYeg==",
      "dev": true,
      "license": "MIT",
      "engines": {
@@ -2168,16 +2170,16 @@
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    },
    "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/typescript-estree": {
-      "version": "8.61.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-8.61.1.tgz",
-      "integrity": "sha512-u+oQD3BqYWPc8YV9Zab4vaJElJuwOLPRc10Jm1o/qS+6Qwen14HCWwx0Seo4LnSn2wxea2Ik8DxPt2/FHmuhrg==",
+      "version": "8.62.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-8.62.0.tgz",
+      "integrity": "sha512-+hVbNxtW64pIcZWDPGbyaKF7vp2IBTVY5ma1blwwksrjdsbdqqEKvJWMGbBofei4F6Dovx1M0RJgoFeNu2279A==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "@typescript-eslint/project-service": "8.61.1",
-        "@typescript-eslint/tsconfig-utils": "8.61.1",
-        "@typescript-eslint/types": "8.61.1",
-        "@typescript-eslint/visitor-keys": "8.61.1",
+        "@typescript-eslint/project-service": "8.62.0",
+        "@typescript-eslint/tsconfig-utils": "8.62.0",
+        "@typescript-eslint/types": "8.62.0",
+        "@typescript-eslint/visitor-keys": "8.62.0",
        "debug": "^4.4.3",
        "minimatch": "^10.2.2",
        "semver": "^7.7.3",
@@ -2196,13 +2198,13 @@
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    },
    "node_modules/@typescript-eslint/parser/node_modules/@typescript-eslint/visitor-keys": {
-      "version": "8.61.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.61.1.tgz",
-      "integrity": "sha512-6fJ9MHWtK14C1DSkiMlHUSOmrVebL7150xZJBlJiL62jjhIA4JmOq6flwBgDxIdBKKdoiZRel+dfPD5MLfny3w==",
+      "version": "8.62.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.62.0.tgz",
+      "integrity": "sha512-CY3uyFSRbcQv3nnSv8S0+lDftMVz6P963PoRlxrV7ew/Md564g9ut60PYzdLM5qW4jFn93GBF+Soi90ISAN+GQ==",
      "dev": true,
      "license": "MIT",
      "dependencies": {
-        "@typescript-eslint/types": "8.61.1",
+        "@typescript-eslint/types": "8.62.0",
        "eslint-visitor-keys": "^5.0.0"
      },
      "engines": {
@@ -3222,6 +3224,85 @@
      "dev": true,
      "license": "MIT"
    },
+    "node_modules/cli-cursor": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-5.0.0.tgz",
+      "integrity": "sha512-aCj4O5wKyszjMmDT4tZj93kxyydN/K5zPWSCe6/0AV/AA1pqe5ZBIw0a2ZfPQV7lL5/yb5HsUreJ6UFAF1tEQw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "restore-cursor": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/cli-truncate": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/cli-truncate/-/cli-truncate-5.2.0.tgz",
+      "integrity": "sha512-xRwvIOMGrfOAnM1JYtqQImuaNtDEv9v6oIYAs4LIHwTiKee8uwvIi363igssOC0O5U04i4AlENs79LQLu9tEMw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "slice-ansi": "^8.0.0",
+        "string-width": "^8.2.0"
+      },
+      "engines": {
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/cli-truncate/node_modules/ansi-regex": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.2.2.tgz",
+      "integrity": "sha512-Bq3SmSpyFHaWjPk8If9yc6svM8c56dB5BAtW4Qbw5jHTwwXXcTLoRMkpDJp6VL0XzlWaCHTXrkFURMYmD0sLqg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-regex?sponsor=1"
+      }
+    },
+    "node_modules/cli-truncate/node_modules/string-width": {
+      "version": "8.2.1",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-8.2.1.tgz",
+      "integrity": "sha512-IIaP0g3iy9Cyy18w3M9YcaDudujEAVHKt3a3QJg1+sr/oX96TbaGUubG0hJyCjCBThFH+tFpcIyoUHUn1ogaLA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "get-east-asian-width": "^1.5.0",
+        "strip-ansi": "^7.1.2"
+      },
+      "engines": {
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
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+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.2.0.tgz",
+      "integrity": "sha512-yDPMNjp4WyfYBkHnjIRLfca1i6KMyGCtsVgoKe/z1+6vukgaENdgGBZt+ZmKPc4gavvEZ5OgHfHdrazhgNyG7w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-regex": "^6.2.2"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/strip-ansi?sponsor=1"
+      }
+    },
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+      }
+    },
+    "node_modules/restore-cursor/node_modules/signal-exit": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
+      "integrity": "sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
    "node_modules/reusify": {
      "version": "1.0.4",
      "resolved": "https://registry.npmjs.org/reusify/-/reusify-1.0.4.tgz",
@@ -5895,6 +6375,13 @@
        "node": ">=0.10.0"
      }
    },
+    "node_modules/rfdc": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/rfdc/-/rfdc-1.4.1.tgz",
+      "integrity": "sha512-q1b3N5QkRUWUl7iyylaaj3kOpIT0N2i9MqIEQXP73GVsN9cw3fdx8X63cEmWhJGi2PPCF23Ijp7ktmd39rawIA==",
+      "dev": true,
+      "license": "MIT"
+    },
    "node_modules/rimraf": {
      "version": "3.0.2",
      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
@@ -5981,6 +6468,52 @@
        "node": ">=8"
      }
    },
+    "node_modules/slice-ansi": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-8.0.0.tgz",
+      "integrity": "sha512-stxByr12oeeOyY2BlviTNQlYV5xOj47GirPr4yA1hE9JCtxfQN0+tVbkxwCtYDQWhEKWFHsEK48ORg5jrouCAg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^6.2.3",
+        "is-fullwidth-code-point": "^5.1.0"
+      },
+      "engines": {
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/slice-ansi?sponsor=1"
+      }
+    },
+    "node_modules/slice-ansi/node_modules/ansi-styles": {
+      "version": "6.2.3",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.3.tgz",
+      "integrity": "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
+    "node_modules/slice-ansi/node_modules/is-fullwidth-code-point": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-5.1.0.tgz",
+      "integrity": "sha512-5XHYaSyiqADb4RnZ1Bdad6cPp8Toise4TzEjcOYDHZkTCbKgiUl7WTUCpNWHuxmDt91wnsZBc9xinNzopv3JMQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "get-east-asian-width": "^1.3.1"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
    "node_modules/source-map": {
      "version": "0.6.1",
      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -6032,6 +6565,16 @@
        "node": ">=8"
      }
    },
+    "node_modules/string-argv": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/string-argv/-/string-argv-0.3.2.tgz",
+      "integrity": "sha512-aqD2Q0144Z+/RqG52NeHEkZauTAUWJO8c6yTftGJKO3Tja5tUgIfmIl6kExvhtxSDP7fXB6DvzkfMpCd/F3G+Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6.19"
+      }
+    },
    "node_modules/string-length": {
      "version": "4.0.2",
      "resolved": "https://registry.npmjs.org/string-length/-/string-length-4.0.2.tgz",
@@ -6211,6 +6754,16 @@
      "integrity": "sha512-N+8UisAXDGk8PFXP4HAzVR9nbfmVJ3zYLAWiTIoqC5v5isinhr+r5uaO8+7r3BMfuNIufIsA7RdpVgacC2cSpw==",
      "dev": true
    },
+    "node_modules/tinyexec": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/tinyexec/-/tinyexec-1.2.4.tgz",
+      "integrity": "sha512-SHf/r48b7vOrjve9PxJo3MN5v5yuyjHvdUcrQffT3WXMUfnGmHDVbC4k3sHJaJTgZCwpUplIaAo5ANtMyp3YHg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
    "node_modules/tinyglobby": {
      "version": "0.2.15",
      "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.15.tgz",
@@ -6675,6 +7228,23 @@
      "dev": true,
      "license": "ISC"
    },
+    "node_modules/yaml": {
+      "version": "2.9.0",
+      "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.9.0.tgz",
+      "integrity": "sha512-2AvhNX3mb8zd6Zy7INTtSpl1F15HW6Wnqj0srWlkKLcpYl/gMIMJiyuGq2KeI2YFxUPjdlB+3Lc10seMLtL4cA==",
+      "dev": true,
+      "license": "ISC",
+      "optional": true,
+      "bin": {
+        "yaml": "bin.mjs"
+      },
+      "engines": {
+        "node": ">= 14.6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/eemeli"
+      }
+    },
    "node_modules/yargs": {
      "version": "17.7.2",
      "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.2.tgz",
@@ -13,10 +13,22 @@
    "format-check": "prettier --no-error-on-unmatched-pattern --config ./.prettierrc.js --check \"**/*.{ts,yml,yaml}\"",
    "lint": "eslint --config ./.eslintrc.js \"**/*.ts\"",
    "lint:fix": "eslint --config ./.eslintrc.js \"**/*.ts\" --fix",
+    "check": "npm run format-check && npm run lint && npm run build && npm test",
+    "fix": "npm run format && npm run lint:fix && npm run build",
+    "prepare": "husky install",
    "prerelease": "npm run-script build",
    "release": "git add -f dist/setup/index.js dist/cleanup/index.js",
    "test": "jest"
  },
+  "lint-staged": {
+    "*.ts": [
+      "prettier --no-error-on-unmatched-pattern --config ./.prettierrc.js --write",
+      "eslint --config ./.eslintrc.js --fix"
+    ],
+    "*.{yml,yaml}": [
+      "prettier --no-error-on-unmatched-pattern --config ./.prettierrc.js --write"
+    ]
+  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/actions/setup-java.git"
@@ -44,15 +56,17 @@
    "@types/node": "^26.0.0",
    "@types/semver": "^7.5.8",
    "@typescript-eslint/eslint-plugin": "^8.48.0",
-    "@typescript-eslint/parser": "^8.61.1",
+    "@typescript-eslint/parser": "^8.62.0",
    "@vercel/ncc": "^0.44.0",
    "eslint": "^8.57.0",
    "eslint-config-prettier": "^10.1.8",
-    "eslint-plugin-jest": "^29.0.1",
+    "eslint-plugin-jest": "^29.15.4",
    "eslint-plugin-node": "^11.1.0",
+    "husky": "^9.1.7",
    "jest": "^30.4.2",
    "jest-circus": "^30.4.2",
-    "prettier": "^3.6.2",
+    "lint-staged": "^17.0.8",
+    "prettier": "^3.9.1",
    "ts-jest": "^29.4.11",
    "typescript": "^5.3.3"
  },
@@ -80,6 +80,7 @@ export function generate(
      '@xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
      '@xsi:schemaLocation':
        'http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd',
+      interactiveMode: false,
      servers: {
        server: [
          {
@@ -6,6 +6,8 @@ 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_VERIFY_SIGNATURE = 'verify-signature';
+export const INPUT_VERIFY_SIGNATURE_PUBLIC_KEY = 'verify-signature-public-key';
 export const INPUT_SERVER_ID = 'server-id';
 export const INPUT_SERVER_USERNAME = 'server-username';
 export const INPUT_SERVER_PASSWORD = 'server-password';
@@ -28,5 +30,10 @@ export const MVN_SETTINGS_FILE = 'settings.xml';
 export const MVN_TOOLCHAINS_FILE = 'toolchains.xml';
 export const INPUT_MVN_TOOLCHAIN_ID = 'mvn-toolchain-id';
 export const INPUT_MVN_TOOLCHAIN_VENDOR = 'mvn-toolchain-vendor';
+export const INPUT_SHOW_DOWNLOAD_PROGRESS = 'show-download-progress';
+
+export const MAVEN_ARGS_ENV = 'MAVEN_ARGS';
+export const MAVEN_NO_TRANSFER_PROGRESS_FLAG = '-ntp';
+export const MAVEN_NO_TRANSFER_PROGRESS_LONG_FLAG = '--no-transfer-progress';

 export const DISTRIBUTIONS_ONLY_MAJOR_VERSION = ['corretto'];
@@ -20,6 +20,8 @@ export abstract class JavaBase {
  protected packageType: string;
  protected stable: boolean;
  protected checkLatest: boolean;
+  protected verifySignature: boolean;
+  protected verifySignaturePublicKey: string | undefined;

  constructor(
    protected distribution: string,
@@ -36,6 +38,8 @@ export abstract class JavaBase {
    this.architecture = installerOptions.architecture || os.arch();
    this.packageType = installerOptions.packageType;
    this.checkLatest = installerOptions.checkLatest;
+    this.verifySignature = installerOptions.verifySignature ?? false;
+    this.verifySignaturePublicKey = installerOptions.verifySignaturePublicKey;
  }

  protected abstract downloadTool(
@@ -46,6 +50,12 @@ export abstract class JavaBase {
  ): Promise<JavaDownloadRelease>;

  public async setupJava(): Promise<JavaInstallerResults> {
+    if (this.verifySignature && !this.supportsSignatureVerification()) {
+      throw new Error(
+        `Input 'verify-signature' is not supported for distribution '${this.distribution}'.`
+      );
+    }
+
    let foundJava = this.findInToolcache();
    if (foundJava && !this.checkLatest) {
      core.info(`Resolved Java ${foundJava.version} from tool-cache`);
@@ -179,6 +189,10 @@ export abstract class JavaBase {
    return `Java_${this.distribution}_${this.packageType}`;
  }

+  protected supportsSignatureVerification(): boolean {
+    return false;
+  }
+
  protected getToolcacheVersionName(version: string): string {
    if (!this.stable) {
      if (version.includes('+')) {
@@ -3,6 +3,8 @@ export interface JavaInstallerOptions {
  architecture: string;
  packageType: string;
  checkLatest: boolean;
+  verifySignature?: boolean;
+  verifySignaturePublicKey?: string;
 }

 export interface JavaInstallerResults {
@@ -13,4 +15,5 @@ export interface JavaInstallerResults {
 export interface JavaDownloadRelease {
  version: string;
  url: string;
+  signatureUrl?: string;
 }
@@ -127,8 +127,7 @@ export class CorrettoDistribution extends JavaBase {

  private getAvailableVersionsForPlatform(
    eligibleVersions:
-      | ICorrettoAllAvailableVersions['os']['arch']['imageType']
-      | undefined
+      ICorrettoAllAvailableVersions['os']['arch']['imageType'] | undefined
  ): ICorrettoAvailableVersions[] {
    const availableVersions: ICorrettoAvailableVersions[] = [];

@@ -11,8 +11,12 @@ import {CorrettoDistribution} from './corretto/installer';
 import {OracleDistribution} from './oracle/installer';
 import {DragonwellDistribution} from './dragonwell/installer';
 import {SapMachineDistribution} from './sapmachine/installer';
-import {GraalVMDistribution} from './graalvm/installer';
+import {
+  GraalVMCommunityDistribution,
+  GraalVMDistribution
+} from './graalvm/installer';
 import {JetBrainsDistribution} from './jetbrains/installer';
+import {KonaDistribution} from './kona/installer';

 enum JavaDistribution {
  Adopt = 'adopt',
@@ -29,7 +33,9 @@ enum JavaDistribution {
  Dragonwell = 'dragonwell',
  SapMachine = 'sapmachine',
  GraalVM = 'graalvm',
-  JetBrains = 'jetbrains'
+  GraalVMCommunity = 'graalvm-community',
+  JetBrains = 'jetbrains',
+  Kona = 'kona'
 }

 export function getJavaDistribution(
@@ -74,8 +80,12 @@ export function getJavaDistribution(
      return new SapMachineDistribution(installerOptions);
    case JavaDistribution.GraalVM:
      return new GraalVMDistribution(installerOptions);
+    case JavaDistribution.GraalVMCommunity:
+      return new GraalVMCommunityDistribution(installerOptions);
    case JavaDistribution.JetBrains:
      return new JetBrainsDistribution(installerOptions);
+    case JavaDistribution.Kona:
+      return new KonaDistribution(installerOptions);
    default:
      return null;
  }
@@ -2,6 +2,7 @@ import * as core from '@actions/core';
 import * as tc from '@actions/tool-cache';
 import fs from 'fs';
 import path from 'path';
+import semver from 'semver';
 import {JavaBase} from '../base-installer';
 import {HttpCodes} from '@actions/http-client';
 import {GraalVMEAVersion} from './models';
@@ -11,14 +12,26 @@ import {
  JavaInstallerResults
 } from '../base-models';
 import {
+  convertVersionToSemver,
  extractJdkFile,
  getDownloadArchiveExtension,
  getGitHubHttpHeaders,
-  renameWinArchive
+  getNextPageUrlFromLinkHeader,
+  isVersionSatisfies,
+  MAX_PAGINATION_PAGES,
+  renameWinArchive,
+  validatePaginationUrl
 } from '../../util';

 const GRAALVM_DL_BASE = 'https://download.oracle.com/graalvm';
 const GRAALVM_DOWNLOAD_URL = 'https://www.graalvm.org/downloads/';
+const GRAALVM_COMMUNITY_RELEASES_URL =
+  'https://api.github.com/repos/graalvm/graalvm-ce-builds/releases?per_page=100';
+const GRAALVM_COMMUNITY_RELEASES_PAGE_ORIGIN = 'https://api.github.com';
+const GRAALVM_COMMUNITY_DOWNLOAD_URL =
+  'https://github.com/graalvm/graalvm-ce-builds/releases';
+const GRAALVM_COMMUNITY_ASSET_PREFIX = 'graalvm-community-jdk-';
+const GRAALVM_COMMUNITY_VERSION_PATTERN = /^\d+(?:\.\d+)*$/;
 const IS_WINDOWS = process.platform === 'win32';
 const GRAALVM_PLATFORM = IS_WINDOWS ? 'windows' : process.platform;
 const GRAALVM_MIN_VERSION = 17;
@@ -26,9 +39,23 @@ const SUPPORTED_ARCHITECTURES = ['x64', 'aarch64'] as const;
 type SupportedArchitecture = (typeof SUPPORTED_ARCHITECTURES)[number];
 type OsVersions = 'linux' | 'macos' | 'windows';

+interface GraalVMCommunityAsset {
+  name: string;
+  browser_download_url: string;
+}
+
+interface GraalVMCommunityRelease {
+  draft: boolean;
+  prerelease: boolean;
+  assets: GraalVMCommunityAsset[];
+}
+
 export class GraalVMDistribution extends JavaBase {
-  constructor(installerOptions: JavaInstallerOptions) {
-    super('GraalVM', installerOptions);
+  constructor(
+    installerOptions: JavaInstallerOptions,
+    distributionName = 'GraalVM'
+  ) {
+    super(distributionName, installerOptions);
  }

  protected async downloadTool(
@@ -85,40 +112,14 @@ export class GraalVMDistribution extends JavaBase {
  protected async findPackageForDownload(
    range: string
  ): Promise<JavaDownloadRelease> {
-    // Add input validation
-    if (!range || typeof range !== 'string') {
-      throw new Error('Version range is required and must be a string');
-    }
-
-    const arch = this.distributionArchitecture();
-    if (!SUPPORTED_ARCHITECTURES.includes(arch as SupportedArchitecture)) {
-      throw new Error(
-        `Unsupported architecture: ${this.architecture}. Supported architectures are: ${SUPPORTED_ARCHITECTURES.join(', ')}`
-      );
-    }
+    this.validateVersionRange(range);
+    const arch = this.getSupportedArchitecture();

    if (!this.stable) {
      return this.findEABuildDownloadUrl(`${range}-ea`);
    }

-    if (this.packageType !== 'jdk') {
-      throw new Error('GraalVM provides only the `jdk` package type');
-    }
-
-    const platform = this.getPlatform();
-    const extension = getDownloadArchiveExtension();
-    const major = range.includes('.') ? range.split('.')[0] : range;
-    const majorVersion = parseInt(major);
-
-    if (isNaN(majorVersion)) {
-      throw new Error(`Invalid version format: ${range}`);
-    }
-
-    if (majorVersion < GRAALVM_MIN_VERSION) {
-      throw new Error(
-        `GraalVM is only supported for JDK ${GRAALVM_MIN_VERSION} and later. Requested version: ${major}`
-      );
-    }
+    const {platform, extension, major} = this.validateStableBuildRequest(range);

    const fileUrl = this.constructFileUrl(
      range,
@@ -134,6 +135,56 @@ export class GraalVMDistribution extends JavaBase {
    return {url: fileUrl, version: range};
  }

+  protected validateVersionRange(range: string): void {
+    if (!range || typeof range !== 'string') {
+      throw new Error('Version range is required and must be a string');
+    }
+  }
+
+  protected getSupportedArchitecture(): SupportedArchitecture {
+    const arch = this.distributionArchitecture();
+    if (!SUPPORTED_ARCHITECTURES.includes(arch as SupportedArchitecture)) {
+      throw new Error(
+        `Unsupported architecture: ${this.architecture}. Supported architectures are: ${SUPPORTED_ARCHITECTURES.join(', ')}`
+      );
+    }
+
+    return arch as SupportedArchitecture;
+  }
+
+  protected validateStableBuildRequest(range: string): {
+    platform: OsVersions;
+    extension: string;
+    major: string;
+  } {
+    if (this.packageType !== 'jdk') {
+      throw new Error(
+        `${this.distribution} provides only the \`jdk\` package type`
+      );
+    }
+
+    const platform = this.getPlatform();
+    const extension = getDownloadArchiveExtension();
+    const major = range.includes('.') ? range.split('.')[0] : range;
+    const majorVersion = parseInt(major);
+
+    if (isNaN(majorVersion)) {
+      throw new Error(`Invalid version format: ${range}`);
+    }
+
+    if (majorVersion < GRAALVM_MIN_VERSION) {
+      throw new Error(
+        `${this.distribution} is only supported for JDK ${GRAALVM_MIN_VERSION} and later. Requested version: ${major}`
+      );
+    }
+
+    return {
+      platform,
+      major,
+      extension
+    };
+  }
+
  private constructFileUrl(
    range: string,
    major: string,
@@ -280,3 +331,144 @@ export class GraalVMDistribution extends JavaBase {
    return result;
  }
 }
+
+export class GraalVMCommunityDistribution extends GraalVMDistribution {
+  constructor(installerOptions: JavaInstallerOptions) {
+    super(installerOptions, 'GraalVM Community');
+  }
+
+  protected get toolcacheFolderName(): string {
+    return `Java_GraalVM_Community_${this.packageType}`;
+  }
+
+  protected async findPackageForDownload(
+    range: string
+  ): Promise<JavaDownloadRelease> {
+    this.validateVersionRange(range);
+
+    if (!this.stable) {
+      throw new Error('GraalVM Community does not provide early access builds');
+    }
+
+    const arch = this.getSupportedArchitecture();
+    const {platform, extension} = this.validateStableBuildRequest(range);
+    // GraalVM Community asset names embed the platform, architecture and
+    // archive type, e.g. `graalvm-community-jdk-21.0.2_linux-x64_bin.tar.gz`.
+    const assetSuffix = `_${platform}-${arch}_bin.${extension}`;
+    const availableVersions = await this.getAvailableVersions(assetSuffix);
+
+    const satisfiedVersion = availableVersions
+      .filter(item => isVersionSatisfies(range, item.version))
+      .sort((a, b) => -semver.compareBuild(a.version, b.version))[0];
+
+    if (!satisfiedVersion) {
+      const error = this.createVersionNotFoundError(
+        range,
+        availableVersions.map(item => item.version),
+        `Platform: ${platform}`
+      );
+      error.message += `\nPlease check if this version is available at ${GRAALVM_COMMUNITY_DOWNLOAD_URL}.`;
+      throw error;
+    }
+
+    return satisfiedVersion;
+  }
+
+  private async getAvailableVersions(
+    assetSuffix: string
+  ): Promise<JavaDownloadRelease[]> {
+    const headers = getGitHubHttpHeaders();
+    const versions = new Map<string, JavaDownloadRelease>();
+    let releasesUrl: string | null = GRAALVM_COMMUNITY_RELEASES_URL;
+
+    for (
+      let pageIndex = 0;
+      releasesUrl && pageIndex < MAX_PAGINATION_PAGES;
+      pageIndex++
+    ) {
+      const response = await this.http.getJson<GraalVMCommunityRelease[]>(
+        releasesUrl,
+        headers
+      );
+
+      // A successful GitHub releases listing is always a JSON array (possibly
+      // empty). Anything else indicates an unexpected/error payload (rate
+      // limiting, auth failure, etc.) that must be surfaced instead of being
+      // silently treated as "no releases", which would later look like a
+      // misleading "version not found" error.
+      if (!Array.isArray(response.result)) {
+        throw new Error(
+          `Unexpected response while listing GraalVM Community releases from ${releasesUrl} ` +
+            `(HTTP status code: ${response.statusCode}). Expected a JSON array of releases. ` +
+            `Please check if the service is available at ${GRAALVM_COMMUNITY_DOWNLOAD_URL}.`
+        );
+      }
+
+      const releases = response.result;
+      if (releases.length === 0) {
+        break;
+      }
+
+      for (const release of releases) {
+        if (release.draft || release.prerelease) {
+          continue;
+        }
+
+        for (const asset of release.assets ?? []) {
+          const version = this.extractAssetVersion(asset.name, assetSuffix);
+          if (version) {
+            versions.set(version, {
+              version,
+              url: asset.browser_download_url
+            });
+          }
+        }
+      }
+
+      releasesUrl = this.getNextReleasesUrl(response.headers);
+    }
+
+    return [...versions.values()];
+  }
+
+  // Returns the GraalVM JDK version encoded in a release asset name when it
+  // matches the requested platform/architecture/archive suffix, otherwise null.
+  private extractAssetVersion(
+    assetName: string,
+    assetSuffix: string
+  ): string | null {
+    if (
+      !assetName.startsWith(GRAALVM_COMMUNITY_ASSET_PREFIX) ||
+      !assetName.endsWith(assetSuffix)
+    ) {
+      return null;
+    }
+
+    const rawVersion = assetName.slice(
+      GRAALVM_COMMUNITY_ASSET_PREFIX.length,
+      -assetSuffix.length
+    );
+
+    if (!GRAALVM_COMMUNITY_VERSION_PATTERN.test(rawVersion)) {
+      return null;
+    }
+
+    return convertVersionToSemver(rawVersion);
+  }
+
+  private getNextReleasesUrl(
+    headers: Record<string, string | string[] | undefined>
+  ): string | null {
+    const nextUrl = getNextPageUrlFromLinkHeader(headers);
+    if (
+      nextUrl &&
+      !validatePaginationUrl(nextUrl, GRAALVM_COMMUNITY_RELEASES_PAGE_ORIGIN)
+    ) {
+      core.warning(
+        `Ignoring pagination link with unexpected origin: ${nextUrl}`
+      );
+      return null;
+    }
+    return nextUrl;
+  }
+}
@@ -0,0 +1,191 @@
+import * as core from '@actions/core';
+import * as tc from '@actions/tool-cache';
+import semver from 'semver';
+
+import fs from 'fs';
+import path from 'path';
+
+import {JavaBase} from '../base-installer';
+import {IKonaReleaseInfo, IKonaRelease} from './models';
+import {
+  JavaDownloadRelease,
+  JavaInstallerOptions,
+  JavaInstallerResults
+} from '../base-models';
+import {
+  extractJdkFile,
+  getDownloadArchiveExtension,
+  isVersionSatisfies,
+  renameWinArchive
+} from '../../util';
+
+export class KonaDistribution extends JavaBase {
+  constructor(installerOptions: JavaInstallerOptions) {
+    super('Kona', installerOptions);
+  }
+
+  protected async downloadTool(
+    javaRelease: JavaDownloadRelease
+  ): Promise<JavaInstallerResults> {
+    core.info(
+      `Downloading Kona JDK ${javaRelease.version} (${this.distribution}) from ${javaRelease.url} ...`
+    );
+    const javaArchivePath = await tc.downloadTool(javaRelease.url);
+
+    core.info(`Extracting Java archive...`);
+
+    const extension = getDownloadArchiveExtension();
+    const archivePath =
+      process.platform === 'win32'
+        ? renameWinArchive(javaArchivePath)
+        : javaArchivePath;
+    const extractedJavaPath = await extractJdkFile(archivePath, extension);
+
+    const archiveName = fs.readdirSync(extractedJavaPath)[0];
+    const jdkDirectory = path.join(extractedJavaPath, archiveName);
+    const version = this.getToolcacheVersionName(javaRelease.version);
+
+    const javaPath = await tc.cacheDir(
+      jdkDirectory,
+      this.toolcacheFolderName,
+      version,
+      this.architecture
+    );
+
+    return {version: javaRelease.version, path: javaPath};
+  }
+
+  protected async findPackageForDownload(
+    version: string
+  ): Promise<JavaDownloadRelease> {
+    if (!this.stable) {
+      throw new Error('Kona provides stable releases only');
+    }
+
+    if (this.packageType !== 'jdk') {
+      throw new Error('Kona provides jdk only');
+    }
+
+    const availableReleases = await this.getAvailableReleases();
+    const releases = availableReleases
+      .filter(item => {
+        return isVersionSatisfies(version, item.version);
+      })
+      .map(item => {
+        return {
+          version: item.version,
+          url: item.downloadUrl
+        } as JavaDownloadRelease;
+      })
+      .sort((a, b) => -semver.compareBuild(a.version, b.version));
+
+    if (!releases.length) {
+      throw new Error(
+        `No Kona release for the specified version "${version}" on OS "${this.getOs()}" and arch "${this.getArch()}".`
+      );
+    }
+
+    return releases[0];
+  }
+
+  private async getAvailableReleases(): Promise<IKonaRelease[]> {
+    if (core.isDebug()) {
+      console.time('Retrieving available releases for Kona took'); // eslint-disable-line no-console
+    }
+
+    const releaseInfo = await this.fetchReleaseInfo();
+    if (!releaseInfo) {
+      throw new Error(`Couldn't fetch Kona release information`);
+    }
+
+    const availableReleases = this.chooseReleases(
+      this.getOs(),
+      this.getArch(),
+      releaseInfo
+    );
+
+    if (core.isDebug()) {
+      core.startGroup('Print information about available releases');
+      console.timeEnd('Retrieving available releases for Kona took'); // eslint-disable-line no-console
+      core.debug(availableReleases.map(item => item.version).join(', '));
+      core.endGroup();
+    }
+
+    return availableReleases;
+  }
+
+  private async fetchReleaseInfo(): Promise<IKonaReleaseInfo | null> {
+    const releasesInfoUrl =
+      'https://tencent.github.io/konajdk/releases/kona-v1.json';
+
+    try {
+      core.debug(`Fetching Kona release info from URL: ${releasesInfoUrl}`);
+      return (await this.http.getJson<IKonaReleaseInfo>(releasesInfoUrl))
+        .result;
+    } catch (err) {
+      core.debug(
+        `Fetching Kona release info from the URL: ${releasesInfoUrl} failed with the error: ${
+          (err as Error).message
+        }`
+      );
+      return null;
+    }
+  }
+
+  private chooseReleases(
+    os: string,
+    arch: string,
+    releaseInfo: IKonaReleaseInfo
+  ): IKonaRelease[] {
+    const releases: IKonaRelease[] = [];
+
+    for (const majorVersion in releaseInfo) {
+      const versions = releaseInfo[majorVersion];
+
+      for (const version of versions) {
+        if (!version.latest) {
+          continue;
+        }
+
+        for (const file of version.files) {
+          if (file.os === os && file.arch === arch) {
+            releases.push({
+              version: version.version,
+              jdkVersion: version.jdkVersion,
+              os: os,
+              arch: arch,
+              downloadUrl: version.baseUrl + file.filename,
+              checksum: file.checksum
+            });
+
+            break;
+          }
+        }
+      }
+    }
+
+    return releases;
+  }
+
+  private getOs(): string {
+    switch (process.platform) {
+      case 'darwin':
+        return 'macos';
+      case 'win32':
+        return 'windows';
+      default:
+        return process.platform;
+    }
+  }
+
+  private getArch(): string {
+    switch (this.architecture) {
+      case 'arm64':
+        return 'aarch64';
+      case 'x64':
+        return 'x86_64';
+      default:
+        return this.architecture;
+    }
+  }
+}
@@ -0,0 +1,25 @@
+export interface IKonaReleaseInfo {
+  [majorVersion: string]: {
+    version: string;
+    jdkVersion: string;
+    latest: boolean;
+
+    baseUrl: string;
+    files: {
+      os: string; // linux, macos, windows
+      arch: string; // x86_64, aarch64
+
+      filename: string;
+      checksum: string;
+    }[];
+  }[];
+}
+
+export interface IKonaRelease {
+  version: string;
+  jdkVersion: string;
+  os: string; // linux, macos, windows
+  arch: string; // x86_64, aarch64
+  downloadUrl: string;
+  checksum: string; // SHA-256 digest
+}
@@ -4,11 +4,7 @@ export type Bitness = '32' | '64';
 export type ArchType = 'arm' | 'ppc' | 'sparc' | 'x86';

 export type OsVersions =
-  | 'linux'
-  | 'linux-musl'
-  | 'macos'
-  | 'solaris'
-  | 'windows';
+  'linux' | 'linux-musl' | 'macos' | 'solaris' | 'windows';

 export interface ArchitectureOptions {
  bitness: Bitness;
@@ -10,12 +10,16 @@ import {
  getGitHubHttpHeaders,
  renameWinArchive
 } from '../../util';
+import * as gpg from '../../gpg';
+import {MICROSOFT_PUBLIC_KEY} from './microsoft-key';
 import * as core from '@actions/core';
 import * as tc from '@actions/tool-cache';
 import fs from 'fs';
 import path from 'path';
 import {TypedResponse} from '@actions/http-client/lib/interfaces';

+export {MICROSOFT_PUBLIC_KEY} from './microsoft-key';
+
 export class MicrosoftDistributions extends JavaBase {
  constructor(installerOptions: JavaInstallerOptions) {
    super('Microsoft', installerOptions);
@@ -29,6 +33,26 @@ export class MicrosoftDistributions extends JavaBase {
    );
    let javaArchivePath = await tc.downloadTool(javaRelease.url);

+    if (this.verifySignature) {
+      if (!javaRelease.signatureUrl) {
+        throw new Error(
+          `Input 'verify-signature' is enabled, but no signature URL was found for Microsoft Build of OpenJDK version ${javaRelease.version}.`
+        );
+      }
+      core.info(`Verifying Java package signature...`);
+      try {
+        await gpg.verifyPackageSignature(
+          javaArchivePath,
+          javaRelease.signatureUrl,
+          this.verifySignaturePublicKey ?? MICROSOFT_PUBLIC_KEY
+        );
+      } catch (error) {
+        throw new Error(
+          `Failed to verify signature for Microsoft Build of OpenJDK version ${javaRelease.version}. Signature URL: ${javaRelease.signatureUrl}. Error: ${(error as Error).message}`
+        );
+      }
+    }
+
    core.info(`Extracting Java archive...`);
    const extension = getDownloadArchiveExtension();
    if (process.platform === 'win32') {
@@ -80,12 +104,23 @@ export class MicrosoftDistributions extends JavaBase {
      throw this.createVersionNotFoundError(range, availableVersionStrings);
    }

+    const file = foundRelease.files[0] as {
+      download_url: string;
+      signature_url?: string;
+    };
+    const signatureUrl = file.signature_url ?? `${file.download_url}.sig`;
+
    return {
-      url: foundRelease.files[0].download_url,
+      url: file.download_url,
+      signatureUrl,
      version: foundRelease.version
    };
  }

+  protected supportsSignatureVerification(): boolean {
+    return true;
+  }
+
  private async getAvailableVersions(): Promise<tc.IToolRelease[] | null> {
    // TODO get these dynamically!
    // We will need Microsoft to add an endpoint where we can query for versions.
@@ -0,0 +1,21 @@
+// Microsoft Build of OpenJDK GPG signing key
+// Retrieved from: https://download.visualstudio.microsoft.com/download/pr/b90071e2-e0cf-4411-98be-dbeb09d67bf0/8622862bcd54206e158c5abca0582c9b/464279_464280_aoc_20210208.asc
+export const MICROSOFT_PUBLIC_KEY = `-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: BSN Pgp v1.1.0.0
+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+=rHCS
+-----END PGP PUBLIC KEY BLOCK-----`;
@@ -0,0 +1,33 @@
+// Adoptium GPG signing key (fingerprint: 3B04D753C9050D9A5D343F39843C48A565F8F04B)
+// Retrieved from: https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3B04D753C9050D9A5D343F39843C48A565F8F04B
+export const ADOPTIUM_PUBLIC_KEY = `-----BEGIN PGP PUBLIC KEY BLOCK-----
+
+xsBNBGGTvTQBCAC6ey144n7CG8foafF6mwgIBN1fIm1ILZDuGS4tMr0/XI8pgJnT
+QvsPxZWEvtSm7bEMObzEoZJcXwjBcJl1B0ui8k5kHMTI75gCmZPsoKLFWIEpuRBQ
+PBocusw80apDmLnNDQLVQvDFtEua5gaNa/fRw9YsmBoXBqvgrjFUIdGyWoQvH5+a
+9OYlWD9n5VV0gnVMb+aclwVzB/zJw3kHGSgzuMtlAHeQiah7Y8yomQn/UIX8yqDf
+11sP3+c87YcjkRqImRTtmKEDcEtGPAIXC6SYA+uEEkbYE0Fy0chkvtnVWJ597fa
+Epai4rnICU8zoJ6X5z3v1aM2WerhX9oq9X8PABEBAAHNQEFkb3B0aXVtIEdQRyBL
+ZXkgKERFQi9SUE0gU2lnbmluZyBLZXkpIDx0ZW11cmluLWRldkBlY2xpcHNlLm9y
+Zz7CwJIEEwEIADwWIQQ7BNdTyQUNml00PzmEPEilZfjwSwUCYZO9NAIbAwULCQgH
+AgMiAgEGFQoJCAsCBBYCAwECHgcCF4AACgkQhDxIpWX48Et4AggAjjJzYWuKV3nG
+7ngInngl8G/m9JoHr7BmwgcQXYhdy5hVkMcUx5JLeXz2LMBUH/F2nD595hgjMabk
+kVib20X8lq9RsNbdfc2hBcWU6qyHKxsIqT4boI2/XDyEzzMyyZWWNGo/27Ci7Xmj
+pWu31nh0pDdPqdyWDIKojbVVnxlCRY8as8Sm+1ufi709KCi4MuwHNsUlCSwb/fju
+NKeHkrHbLcHKUUIEcmTSKRWrpMYBzm1HYOGBz4xPuELwUfUp71ehfoyBZlp6RDRf
+l5TYI1FmCyHuvjNhrJgWv7bOTcf8yObGY+TEUhzc4xQqCrF4ur9d3opvsuPBQsv+
+Klqi5KSZgs7ATQRhk700AQgAq14okly8cFrpYVenEQPiB75AUZfKRpMduiR6IxAj
+SKcH7aSoFZ9AubUEBVpZsyT5svxoEPe1i4TdbF+m9FGy42EcOlLa3ArLTj5H8FRl
+UdGZB9I5mk4GptOzPM+aHMMu92vW/ZwjuS8DvOiQSp+cUmG1EqOMJSM7e/4BM71z
+E+OKaVJCj79pEzhG3SK/IC/OlxxyETT66NSfYJd7Sw5R6Vr19am/uNU690W0CJ+q
+VQeFpmDMr7LnfdFRIh+lJe05+PvWXeidkGjox5cbG52wf8aRIR/FgkfcFvqRMN1f
+B+dVOWueloUeVAnzcUznOKmUEs7LP9ObJhYHHgup4IAU2wARAQABwsB2BBgBCAAg
+FiEEOwTXU8kFDZpdND85hDxIpWX48EsFAmGTvTQCGwwACgkQhDxIpWX48EvXHQf/
+Q0nZsGDXnZHiBoojeSdpkO7WBjMIP3w1GdLvRpPQrS8TfOPbZuoevzCNh38Y3gwF
+yelJspvzDQrBXhgkzAGlucYg8Y7KHa5Ebm7iDgMzc37L1hYSZTYCqwd7aowfgy34
+hOk3B67LffkJpIh738Oa9CtlwxQ9xcytmBmQ1fBBOwm/9IhAwHPQuydYIs4DxWbj
+0MGSP4fDntU7e4UjsHNmhudDcYol0FaqdHHIIB9C/G4CzetRwHFOn3b4JwXMU7YU
+6aJA3mXhi3hggMC3wkT2HHZ/TquuOdNc02fypWOCDOHz0alBBJNqoVUNFNqU3tfJ
+wI4qF/KKq9BfyfucAs0ykA==
+=XLag
+-----END PGP PUBLIC KEY BLOCK-----`;
@@ -4,7 +4,9 @@ import * as tc from '@actions/tool-cache';
 import fs from 'fs';
 import path from 'path';
 import semver from 'semver';
+import * as gpg from '../../gpg';

+import {ADOPTIUM_PUBLIC_KEY} from './adoptium-key';
 import {JavaBase} from '../base-installer';
 import {ITemurinAvailableVersions} from './models';
 import {
@@ -22,6 +24,8 @@ import {
  validatePaginationUrl
 } from '../../util';

+export {ADOPTIUM_PUBLIC_KEY} from './adoptium-key';
+
 export enum TemurinImplementation {
  Hotspot = 'Hotspot'
 }
@@ -50,7 +54,8 @@ export class TemurinDistribution extends JavaBase {
          : item.version_data.semver.replace('-beta+', '+');
        return {
          version: formattedVersion,
-          url: item.binaries[0].package.link
+          url: item.binaries[0].package.link,
+          signatureUrl: item.binaries[0].package.signature_link
        } as JavaDownloadRelease;
      });

@@ -80,6 +85,28 @@ export class TemurinDistribution extends JavaBase {
    );
    let javaArchivePath = await tc.downloadTool(javaRelease.url);

+    if (this.verifySignature) {
+      if (!javaRelease.signatureUrl) {
+        throw new Error(
+          `Input 'verify-signature' is enabled, but no signature URL was found for Temurin version ${javaRelease.version}.`
+        );
+      }
+      core.info(`Verifying Java package signature...`);
+      try {
+        await gpg.verifyPackageSignature(
+          javaArchivePath,
+          javaRelease.signatureUrl,
+          this.verifySignaturePublicKey ?? ADOPTIUM_PUBLIC_KEY
+        );
+      } catch (error) {
+        throw new Error(
+          `Failed to verify signature for Temurin version ${javaRelease.version} from ${javaRelease.signatureUrl}: ${
+            (error as Error).message
+          }`
+        );
+      }
+    }
+
    core.info(`Extracting Java archive...`);
    const extension = getDownloadArchiveExtension();
    if (process.platform === 'win32') {
@@ -105,6 +132,10 @@ export class TemurinDistribution extends JavaBase {
    return super.toolcacheFolderName;
  }

+  protected supportsSignatureVerification(): boolean {
+    return true;
+  }
+
  private async getAvailableVersions(): Promise<ITemurinAvailableVersions[]> {
    const platform = this.getPlatformOption();
    const arch = this.distributionArchitecture();
@@ -11,6 +11,7 @@ export interface ITemurinAvailableVersions {
      package: {
        checksum: string;
        checksum_link: string;
+        signature_link?: string;
        download_count: number;
        link: string;
        metadata_link: string;
@@ -2,6 +2,7 @@ import * as fs from 'fs';
 import * as path from 'path';
 import * as io from '@actions/io';
 import * as exec from '@actions/exec';
+import * as tc from '@actions/tool-cache';
 import * as util from './util';
 import {ExecOptions} from '@actions/exec/lib/interfaces';

@@ -9,6 +10,17 @@ export const PRIVATE_KEY_FILE = path.join(util.getTempDir(), 'private-key.asc');

 const PRIVATE_KEY_FINGERPRINT_REGEX = /\w{40}/;

+// Convert a Windows path (D:\a\_temp\...) to a POSIX path (/d/a/_temp/...).
+// The Git-bundled GPG on Windows (MSYS2-based) uses POSIX path conventions
+// internally. Passing Windows paths with backslashes can cause fatal GPG errors
+// (exit code 2), so all paths passed to GPG must be in POSIX format on Windows.
+export function toGpgPath(p: string): string {
+  if (process.platform !== 'win32') return p;
+  return p
+    .replace(/\\/g, '/')
+    .replace(/^([A-Za-z]):\//, (_, drive) => `/${drive.toLowerCase()}/`);
+}
+
 export async function importKey(privateKey: string) {
  fs.writeFileSync(PRIVATE_KEY_FILE, privateKey, {
    encoding: 'utf-8',
@@ -53,3 +65,59 @@ export async function deleteKey(keyFingerprint: string) {
    }
  );
 }
+
+export async function verifyPackageSignature(
+  archivePath: string,
+  signatureUrl: string,
+  publicKeyContent: string
+) {
+  const signaturePath = await tc.downloadTool(signatureUrl);
+  let gpgHome: string;
+  try {
+    gpgHome = fs.mkdtempSync(
+      path.join(util.getTempDir(), 'verify-signature-gpg-home-')
+    );
+  } catch (error) {
+    try {
+      await io.rmRF(signaturePath);
+    } catch {
+      // ignore cleanup failures
+    }
+    throw new Error(
+      `Failed to create temporary GPG home directory for signature verification: ${
+        (error as Error).message
+      }`
+    );
+  }
+  try {
+    const publicKeyFile = path.join(gpgHome, 'public-key.asc');
+    fs.writeFileSync(publicKeyFile, publicKeyContent, {encoding: 'utf-8'});
+    const options: ExecOptions = {silent: true};
+    await exec.exec(
+      'gpg',
+      [
+        '--homedir',
+        toGpgPath(gpgHome),
+        '--batch',
+        '--import',
+        toGpgPath(publicKeyFile)
+      ],
+      options
+    );
+    await exec.exec(
+      'gpg',
+      [
+        '--homedir',
+        toGpgPath(gpgHome),
+        '--batch',
+        '--verify',
+        toGpgPath(signaturePath),
+        toGpgPath(archivePath)
+      ],
+      options
+    );
+  } finally {
+    await io.rmRF(signaturePath);
+    await io.rmRF(gpgHome);
+  }
+}
@@ -0,0 +1,69 @@
+import * as core from '@actions/core';
+import {getBooleanInput} from './util';
+import {
+  INPUT_SHOW_DOWNLOAD_PROGRESS,
+  MAVEN_ARGS_ENV,
+  MAVEN_NO_TRANSFER_PROGRESS_FLAG,
+  MAVEN_NO_TRANSFER_PROGRESS_LONG_FLAG
+} from './constants';
+
+/**
+ * Configures the MAVEN_ARGS environment variable so that Maven suppresses
+ * artifact transfer/download progress output by default, producing cleaner
+ * CI logs.
+ *
+ * Behavior:
+ * - When `show-download-progress` is `false` (the default), `-ntp`
+ *   (`--no-transfer-progress`) is appended to any existing MAVEN_ARGS value.
+ * - When `show-download-progress` is `true`, MAVEN_ARGS is left untouched so
+ *   the user's own configuration (and Maven's default progress output) is
+ *   preserved.
+ *
+ * The change is idempotent: if MAVEN_ARGS already disables transfer progress
+ * (via `-ntp` or `--no-transfer-progress`) nothing is added. Any pre-existing
+ * MAVEN_ARGS value is preserved.
+ *
+ * MAVEN_ARGS is honored by Maven 3.9.0+ and the Maven Wrapper; older Maven
+ * versions ignore it, so this is a no-op there. It has no effect on non-Maven
+ * builds such as Gradle or sbt.
+ */
+export function configureMavenArgs(): void {
+  const showDownloadProgress = getBooleanInput(
+    INPUT_SHOW_DOWNLOAD_PROGRESS,
+    false
+  );
+
+  if (showDownloadProgress) {
+    core.debug(
+      `${INPUT_SHOW_DOWNLOAD_PROGRESS} is true; leaving ${MAVEN_ARGS_ENV} unchanged`
+    );
+    return;
+  }
+
+  const existingArgs = (process.env[MAVEN_ARGS_ENV] ?? '').trim();
+
+  const alreadyDisabled = existingArgs
+    .split(/\s+/)
+    .some(
+      arg =>
+        arg === MAVEN_NO_TRANSFER_PROGRESS_FLAG ||
+        arg === MAVEN_NO_TRANSFER_PROGRESS_LONG_FLAG
+    );
+
+  if (alreadyDisabled) {
+    core.debug(
+      `${MAVEN_ARGS_ENV} already disables transfer progress; leaving it unchanged`
+    );
+    return;
+  }
+
+  const updatedArgs = existingArgs
+    ? `${existingArgs} ${MAVEN_NO_TRANSFER_PROGRESS_FLAG}`
+    : MAVEN_NO_TRANSFER_PROGRESS_FLAG;
+
+  core.exportVariable(MAVEN_ARGS_ENV, updatedArgs);
+  core.info(
+    `Configured ${MAVEN_ARGS_ENV} to include ${MAVEN_NO_TRANSFER_PROGRESS_FLAG} to suppress Maven transfer progress logs. ` +
+      `Set '${INPUT_SHOW_DOWNLOAD_PROGRESS}: true' to keep the download progress output.`
+  );
+}
@@ -12,6 +12,7 @@ import {restore} from './cache';
 import * as path from 'path';
 import {getJavaDistribution} from './distributions/distribution-factory';
 import {JavaInstallerOptions} from './distributions/base-models';
+import {configureMavenArgs} from './maven-args';

 async function run() {
  try {
@@ -28,6 +29,12 @@ async function run() {
      constants.INPUT_CACHE_DEPENDENCY_PATH
    );
    const checkLatest = getBooleanInput(constants.INPUT_CHECK_LATEST, false);
+    const verifySignature = getBooleanInput(
+      constants.INPUT_VERIFY_SIGNATURE,
+      false
+    );
+    const verifySignaturePublicKey =
+      core.getInput(constants.INPUT_VERIFY_SIGNATURE_PUBLIC_KEY) || undefined;
    let toolchainIds = core.getMultilineInput(constants.INPUT_MVN_TOOLCHAIN_ID);

    core.startGroup('Installed distributions');
@@ -44,6 +51,8 @@ async function run() {
      architecture,
      packageType,
      checkLatest,
+      verifySignature,
+      verifySignaturePublicKey,
      distributionName,
      jdkFile,
      toolchainIds
@@ -79,6 +88,7 @@ async function run() {
    core.info(`##[add-matcher]${path.join(matchersPath, 'java.json')}`);

    await auth.configureAuthentication();
+    configureMavenArgs();
    if (cache && isCacheFeatureAvailable()) {
      await restore(cache, cacheDependencyPath);
    }
@@ -100,6 +110,8 @@ async function installVersion(
    architecture,
    packageType,
    checkLatest,
+    verifySignature,
+    verifySignaturePublicKey,
    toolchainIds
  } = options;

@@ -107,6 +119,8 @@ async function installVersion(
    architecture,
    packageType,
    checkLatest,
+    verifySignature,
+    verifySignaturePublicKey,
    version
  };

@@ -141,6 +155,8 @@ interface installerInputsOptions {
  architecture: string;
  packageType: string;
  checkLatest: boolean;
+  verifySignature: boolean;
+  verifySignaturePublicKey: string | undefined;
  distributionName: string;
  jdkFile: string;
  toolchainIds: Array<string>;
@@ -83,47 +83,76 @@ export function generateToolchainDefinition(
  id: string,
  jdkHome: string
 ) {
-  let xmlObj;
-  if (original?.length) {
-    xmlObj = xmlCreate(original)
-      .root()
-      .ele({
-        toolchain: {
-          type: 'jdk',
-          provides: {
-            version: `${version}`,
-            vendor: `${vendor}`,
-            id: `${id}`
-          },
-          configuration: {
-            jdkHome: `${jdkHome}`
-          }
-        }
-      });
-  } else
-    xmlObj = xmlCreate({
-      toolchains: {
-        '@xmlns': 'http://maven.apache.org/TOOLCHAINS/1.1.0',
-        '@xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
-        '@xsi:schemaLocation':
-          'http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd',
-        toolchain: [
-          {
-            type: 'jdk',
-            provides: {
-              version: `${version}`,
-              vendor: `${vendor}`,
-              id: `${id}`
-            },
-            configuration: {
-              jdkHome: `${jdkHome}`
-            }
-          }
-        ]
+  let jsToolchains: Toolchain[] = [
+    {
+      type: 'jdk',
+      provides: {
+        version: `${version}`,
+        vendor: `${vendor}`,
+        id: `${id}`
+      },
+      configuration: {
+        jdkHome: `${jdkHome}`
      }
-    });
+    }
+  ];
+  // default root attributes, used when the existing file does not declare its own
+  let rootAttributes: Record<string, string> = {
+    '@xmlns': 'http://maven.apache.org/TOOLCHAINS/1.1.0',
+    '@xmlns:xsi': 'http://www.w3.org/2001/XMLSchema-instance',
+    '@xsi:schemaLocation':
+      'http://maven.apache.org/TOOLCHAINS/1.1.0 https://maven.apache.org/xsd/toolchains-1.1.0.xsd'
+  };
+  if (original?.length) {
+    // convert existing toolchains into TS native objects for better handling
+    // xmlbuilder2 will convert the document into a `{toolchains: { toolchain: [] | {} }}` structure
+    // instead of the desired `toolchains: [{}]` one or simply `[{}]`
+    const jsObj = xmlCreate(original)
+      .root()
+      .toObject() as unknown as ExtractedToolchains;
+    if (jsObj.toolchains) {
+      // preserve the existing root attributes (xmlns, schemaLocation, …) so we don't
+      // silently rewrite user-managed metadata or change the effective XML namespace;
+      // xmlbuilder2 exposes attributes as `@`-prefixed keys on the element object
+      const existingAttributes = Object.fromEntries(
+        Object.entries(jsObj.toolchains).filter(([key]) => key.startsWith('@'))
+      ) as Record<string, string>;
+      // fall back to the defaults only for attributes the existing file is missing
+      rootAttributes = {...rootAttributes, ...existingAttributes};

-  return xmlObj.end({
+      if (jsObj.toolchains.toolchain) {
+        // in case only a single child exists xmlbuilder2 will not create an array and using verbose = true equally doesn't work here
+        // See https://oozcitak.github.io/xmlbuilder2/serialization.html#js-object-and-map-serializers for details
+        if (Array.isArray(jsObj.toolchains.toolchain)) {
+          jsToolchains.push(...jsObj.toolchains.toolchain);
+        } else {
+          jsToolchains.push(jsObj.toolchains.toolchain);
+        }
+      }
+    }
+
+    // remove potential duplicates based on type & id (which should be a unique combination);
+    // self.findIndex will only return the first occurrence, ensuring duplicates are skipped
+    jsToolchains = jsToolchains.filter(
+      (value, index, self) =>
+        // ensure non-jdk toolchains are kept in the results, we must not touch them because they belong to the user
+        value.type !== 'jdk' ||
+        // keep toolchains that lack a usable string id (e.g. partially-formed user files);
+        // we cannot safely deduplicate them and must not crash while reading them
+        typeof value.provides?.id !== 'string' ||
+        index ===
+          self.findIndex(
+            t => t.type === value.type && t.provides?.id === value.provides?.id
+          )
+    );
+  }
+
+  return xmlCreate({
+    toolchains: {
+      ...rootAttributes,
+      toolchain: jsToolchains
+    }
+  }).end({
    format: 'xml',
    wellFormed: false,
    headless: false,
@@ -166,3 +195,24 @@ async function writeToolchainsFileToDisk(
    flag: 'w'
  });
 }
+
+interface ExtractedToolchains {
+  toolchains: {
+    // root attributes such as xmlns / schemaLocation are exposed as `@`-prefixed keys
+    [attribute: `@${string}`]: string;
+    toolchain?: Toolchain[] | Toolchain;
+  };
+}
+
+// Toolchain type definition according to Maven Toolchains XSD 1.1.0
+interface Toolchain {
+  type: string;
+  provides:
+    | {
+        version: string;
+        vendor: string;
+        id: string;
+      }
+    | any;
+  configuration: any;
+}