Reactivate GH PR Build

.github/workflows/ci-maven-master.yml

@@ -1,33 +1,19 @@
-name: Java CI Task - master
+name: CI PRs
 
 on:
   push:
-    branches:
-      - master
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   build:
-
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest]
-
+    runs-on: ubuntu-latest
+    name: CI PR Build
     steps:
-    - uses: actions/checkout@v1
-    - name: Cache maven repository
-      uses: actions/cache@v1
-      with:
-        path: .m2
-        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
-        restore-keys: |
-          ${{ runner.os }}-m2-
-    - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
-      with:
-        java-version: 1.8
-    - name: Build with Maven
-      run: mvn "-Dmaven.repo.local=.m2" -U -B package -s .settings.xml
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v2
+        with:
+          distribution: adopt
+          java-version: 17
+      - run: mvn "-Dmaven.repo.local=.m2" -U -B package -s .settings.xml