Add CI Workflow

Author: rcosta358

.github/workflows/ci.yml

@@ -0,0 +1,28 @@
+name: Java CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Test on Java 21
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Java 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: '21'
+          cache: maven
+
+      - name: Run tests
+        run: mvn --batch-mode --fail-at-end verify