Use Java 21.

Author: bmarty

.github/workflows/build.yml

@@ -28,11 +28,11 @@ jobs:
         with:
           # https://github.com/actions/checkout/issues/881
           ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
-      - name: Use JDK 17
+      - name: Use JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin' # See 'Supported distributions' for available options
-          java-version: '17'
+          java-version: '21'
       - name: Configure gradle
         uses: gradle/actions/setup-gradle@v3
         with:
@@ -57,11 +57,11 @@ jobs:
         with:
           # https://github.com/actions/checkout/issues/881
           ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.ref }}
-      - name: Use JDK 17
+      - name: Use JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin' # See 'Supported distributions' for available options
-          java-version: '17'
+          java-version: '21'
       - name: Configure gradle
         uses: gradle/actions/setup-gradle@v3
         with:

.github/workflows/nightly.yml

@@ -20,11 +20,11 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: 3.8
-      - name: Use JDK 17
+      - name: Use JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin' # See 'Supported distributions' for available options
-          java-version: '17'
+          java-version: '21'
       - name: Configure gradle
         uses: gradle/actions/setup-gradle@v3
         with:

.github/workflows/post-pr.yml

@@ -44,11 +44,11 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: 3.8
-      - name: Use JDK 17
+      - name: Use JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin' # See 'Supported distributions' for available options
-          java-version: '17'
+          java-version: '21'
       - name: Configure gradle
         uses: gradle/actions/setup-gradle@v3
         with:

.github/workflows/quality.yml

@@ -25,11 +25,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Use JDK 17
+      - name: Use JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin' # See 'Supported distributions' for available options
-          java-version: '17'
+          java-version: '21'
       - name: Configure gradle
         uses: gradle/actions/setup-gradle@v3
         with:
@@ -48,11 +48,11 @@ jobs:
       cancel-in-progress: true
     steps:
       - uses: actions/checkout@v4
-      - name: Use JDK 17
+      - name: Use JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin' # See 'Supported distributions' for available options
-          java-version: '17'
+          java-version: '21'
       - name: Configure gradle
         uses: gradle/actions/setup-gradle@v3
         with:
@@ -102,11 +102,11 @@ jobs:
       cancel-in-progress: true
     steps:
       - uses: actions/checkout@v4
-      - name: Use JDK 17
+      - name: Use JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin' # See 'Supported distributions' for available options
-          java-version: '17'
+          java-version: '21'
       - name: Configure gradle
         uses: gradle/actions/setup-gradle@v3
         with:

.github/workflows/tests.yml

@@ -29,11 +29,11 @@ jobs:
         with:
           lfs: true
           fetch-depth: 0
-      - name: Use JDK 17
+      - name: Use JDK 21
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin' # See 'Supported distributions' for available options
-          java-version: '17'
+          java-version: '21'
       - name: Configure gradle
         uses: gradle/actions/setup-gradle@v3
         with:
@@ -139,11 +139,11 @@ jobs:
 #      cancel-in-progress: true
 #    steps:
 #      - uses: actions/checkout@v4
-#      - name: Use JDK 17
+#      - name: Use JDK 21
 #        uses: actions/setup-java@v4
 #        with:
 #          distribution: 'temurin' # See 'Supported distributions' for available options
-#          java-version: '17'
+#          java-version: '21'
 #      - name: Configure gradle
 #        uses: gradle/actions/setup-gradle@v3
 #        with: