Create Java21SetupValidation.yml

Author: chiranjib-swain

.github/workflows/Java21SetupValidation.yml

@@ -0,0 +1,21 @@
+name: Test Java Setup
+
+on:
+  schedule:
+    - cron: '0 0 * * 0'
+  workflow_dispatch:
+
+jobs:
+  setup-java:
+    runs-on: ubuntu-latest
+    name: Set up JDK
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'adopt'
+          java-version: '21'