Add github workflow and build on major operating systems

.github/workflows/pre-merge.yaml

@@ -0,0 +1,38 @@
+name: Pre Merge Checks
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  gradle:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest, macos-latest, windows-latest ]
+        jdk: [ 8 ] # consider to have [ 8, 11, 17 ] in future
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout Repo
+        uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3
+
+      - name: Setup Java
+        uses: actions/setup-java@5ffc13f4174014e2d4d4572b3d74c3fa61aeb2c2 # v3
+        with:
+          java-version: ${{ matrix.jdk }}
+          distribution: 'temurin'
+
+      - name: Validate Gradle Wrapper
+        uses: gradle/wrapper-validation-action@8d49e559aae34d3e0eb16cde532684bc9702762b # v1
+
+      - name: Build project
+        uses: gradle/gradle-build-action@bd5760595778326ba7f1441bcf7e88b49de61a25 # v2
+        with:
+          gradle-home-cache-cleanup: true
+          arguments: build