Create main.yml

.github/workflows/main.yml

@@ -0,0 +1,27 @@
+name: Java CI with Maven
+'on':
+  push:
+    branches:
+      - $default-branch
+  pull_request:
+    branches:
+      - $default-branch
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 21 (or adjust as needed)
+        uses: actions/setup-java@v3
+        with:
+          java-version: '21'
+          distribution: temurin
+      - name: Cache Maven packages
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: '${{ runner.os }}-maven-${{ hashFiles(''pom.xml'') }}'
+          restore-keys: |
+            ${{ runner.os }}-maven-
+      - name: Build with Maven
+        run: mvn -B package