add: first workflow

Signed-off-by: Daniel Nägele <info@naegele.dev>

add: first workflow

Signed-off-by: Daniel Nägele <info@naegele.dev>

.github/workflows/java-ci.yaml

@@ -0,0 +1,18 @@
+name: Java CI
+
+on:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'adopt'
+      - name: Build with Maven
+        run: mvn --batch-mode --update-snapshots package