ci: java 17 and 21 builds

.github/workflows/ci-java.yml

@@ -17,12 +17,15 @@ jobs:
     name: Build & Test Java Wrapper
     if: "! contains(github.event.head_commit.message, '[skip ci]')"
     runs-on: macos-latest
+    strategy:
+      matrix:
+        java-version: [11, 17, 21] # Add other versions if needed
     steps:
       - uses: actions/checkout@v3
-      - name: Set up JDK 11
+      - name: Set up JDK ${{ matrix.java-version }}
         uses: actions/setup-java@v2
         with:
-          java-version: "11"
+          java-version: ${{ matrix.java-version }}
           distribution: "adopt"
       - name: Cache Gradle packages
         uses: actions/cache@v2
@@ -37,8 +40,6 @@ jobs:
         working-directory: ./wrappers/java
         run: ./gradlew build
       - name: Cleanup Gradle Cache
-        # Remove some files from the Gradle cache, so they aren't cached by GitHub Actions.
-        # Restoring these files from a GitHub Actions cache might cause problems for future builds.
         run: |
           rm -f ~/.gradle/caches/modules-2/modules-2.lock
           rm -f ~/.gradle/caches/modules-2/gc.properties