Install Java (OpenJDK 11)

.forgejo/workflows/deploy.yaml

@@ -36,6 +36,11 @@ jobs:
           driver-opts: network=host
       - name: Checkout code
         uses: actions/checkout@v4
+      - name: Install Java (OpenJDK 11)
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y openjdk-11-jdk
+          echo "JAVA_HOME=$(dirname $(dirname $(readlink -f $(which javac))))" >> $GITHUB_ENV
       - name: Install Maven
         run: |
           wget https://dlcdn.apache.org/maven/maven-3/3.9.9/binaries/apache-maven-3.9.9-bin.tar.gz