AUTOGRADE FIX

Author: Tortuga-AM

.github/workflows/autograde.yml

@@ -1,4 +1,4 @@
-name: Autograde - Maven tests
+name: Autograde — Maven + Java 21
 
 on:
   push:
@@ -9,27 +9,22 @@ on:
       - main
 
 jobs:
-  autograde:
-    name: Autograde (mvn test)
+  build-and-test:
     runs-on: ubuntu-latest
 
     steps:
-      - name: Checkout
+      - name: Checkout code
         uses: actions/checkout@v4
 
-      - name: Set up Java 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v4
         with:
-          distribution: temurin
-          java-version: 17
+          distribution: 'temurin'
+          java-version: '21'
+          cache: 'maven'
 
-      - name: Cache Maven local repository
-        uses: actions/cache@v4
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
-          restore-keys: |
-            ${{ runner.os }}-m2-
+      - name: Verify Java version
+        run: java -version
 
-      - name: Run mvn test
+      - name: Compile & test
         run: mvn -B test