Java + Gradle setup in actions

.github/workflows/build.yml

@@ -19,6 +19,21 @@ jobs:
       - name: Make Directory
         run: mkdir output
 
+      - name: Install Java 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+          cache: 'gradle'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+        with:
+          gradle-version: current
+
+      - name: Gradle Build
+        run: ./gradlew build
+
       - name: Install GCC-Multilib
         run: sudo apt-get install gcc-multilib
 
@@ -57,6 +72,15 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: '17'
+          cache: 'gradle'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+        with:
+          gradle-version: current
+
+      - name: Gradle Build
+        run: ./gradlew build
 
       - name: Install MSVC
         uses: ilammy/msvc-dev-cmd@v1
@@ -89,6 +113,15 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: '17'
+          cache: 'gradle'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+        with:
+          gradle-version: current
+
+      - name: Gradle Build
+        run: ./gradlew build
 
       - name: Compile
         run: gcc -c -arch ${{ matrix.arch[0] }} -fPIC -I${JAVA_HOME}/include -I${JAVA_HOME}/include/darwin ${{ env.PATH_TO_CODE }}.c -o ${{ env.PATH_TO_CODE }}_${{ matrix.arch[1] }}.o