Build pipeline for Java SDK (#22)

Co-authored-by: Félix P. <[email protected]>

.github/workflows/java-build.yml

@@ -0,0 +1,29 @@
+name: Java (build)
+
+on:
+  push:
+    paths:
+      - 'visual-java/**'
+      - .github/workflows/java-build.yml
+  pull_request:
+    paths:
+      - 'visual-java/**'
+      - .github/workflows/java-build.yml
+
+defaults:
+  run:
+    working-directory: visual-java
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '8'
+          cache: 'maven'
+      - name: Build with Maven
+        run: mvn -B package --file pom.xml