Add Maven unit test / build test CI for JVM frontends

Signed-off-by: Arthur Chan <[email protected]>

.github/workflows/jvm-unit-test.yml

@@ -0,0 +1,30 @@
+name: JVM-Frontends-Unit-Test
+
+on: pull_request
+permissions: read-all
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    name: JVM-Frontends-Unit-Test
+    steps:
+    - name: Checkout
+      uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
+    - name: Set up OpenJDK 11
+      uses: actions/setup-java@v3
+      with:
+        distribution: 'zulu'
+        java-version: '11'
+    - name: Goto frontends java directory
+      run: cd frontends/java
+    - name: Test Maven Build
+      run: mvn --batch-mode -DskipTests clean package
+    - name: Unit Test (defer fail report)
+      run: mvn --batch-mode -Dmaven.test.failure.ignore=true test
+    - name: Report unit test result
+      uses: dorny/test-reporter@v1
+      if: always()
+      with:
+        name: Maven Build / Unit Test
+        path: target/surefire-reports/*.xml
+        reporter: java-junit
+        fail-on-error: true