Setup CI based on GH Actions (#637)

Author: valfirst

.github/workflows/ci.yml

@@ -0,0 +1,35 @@
+name: CI
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+    branches:
+    - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: [ 8, 11, 17, 19 ]
+    name: Java ${{ matrix.java }}
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: ${{ matrix.java }}
+          cache: 'maven'
+
+      - name: Build with Maven
+        run: mvn clean verify
+
+      - name: Upload coverage to Codecov
+        if: matrix.java == '8'
+        uses: codecov/[email protected]
+        with:
+          fail_ci_if_error: true