Add build.yml

Author: Stefan Hahmann

.github/workflows/build.yml

@@ -0,0 +1,25 @@
+# This workflow will build a Java project with Maven
+
+name: Java CI with Maven
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Java
+        uses: actions/setup-java@v2
+        with:
+          java-version: '8'
+          distribution: 'zulu'
+          cache: 'maven'
+      - name: Build with Maven
+        run: mvn -B package --file pom.xml