save fixes to github actions

Author: gbenroscience

.github/workflows/maven.yaml

@@ -2,11 +2,9 @@ name: Java CI
 
 on:
   push:
-    branches:
-      - master
+    branches: [ master ]
   pull_request:
-    branches:
-      - master
+    branches: [ master ]
   workflow_dispatch:
 
 jobs:
@@ -16,25 +14,24 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
+        # We test across all three to ensure backward compatibility
         java-version: [ 8, 11, 17 ]
       fail-fast: false
 
     name: ${{ matrix.os }} - Java ${{ matrix.java-version }} - Maven
     steps:
       - name: Checkout ParserNG repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4 # Updated to v4
 
       - name: Set up JDK ${{ matrix.java-version }}
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v4 # Updated to v4
         with:
           java-version: ${{ matrix.java-version }}
-          distribution: 'adopt'
-      - name: Set up Maven
-        uses: stCarolas/setup-maven@v4.4
-        with:
-          maven-version: 3.8.2
-
-      - name: Build ParserNG with Maven
-        run: mvn "-Dgpg.skip" "--batch-mode" "--update-snapshots" "clean" "install"
+          distribution: 'temurin' # 'adopt' is legacy; 'temurin' is the modern standard
+          cache: maven
 
+      # Note: setup-java v4 handles Maven setup automatically. 
+      # You can usually remove stCarolas/setup-maven unless you need a very specific version.
 
+      - name: Build ParserNG with Maven
+        run: mvn "-Dgpg.skip" "--batch-mode" "--update-snapshots" "clean" "install"