Java matrix

Author: steklopod

.github/workflows/master.yml

@@ -6,11 +6,20 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ '17' ]
+        java: [ '8', '11', '17' ]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
 
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
+
       - name: 🪜 Setup java ${{ matrix.java }}
         uses: actions/setup-java@v3
         with: