Added Gradle caches setup and cleanup.

.github/workflows/gradle.yml

@@ -22,11 +22,14 @@ jobs:
           key: ${{ runner.os }}-sonar
           restore-keys: ${{ runner.os }}-sonar
       - name: Cache Gradle packages
-        uses: actions/cache@v1
+        uses: actions/cache@v2
         with:
-          path: ~/.gradle/caches
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
-          restore-keys: ${{ runner.os }}-gradle
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
       - name: Test with Gradle
         env:
           CI_NAME: "GitHub CI"
@@ -43,3 +46,7 @@ jobs:
           TWITTER_TOKEN: ${{ secrets.TWITTER_TOKEN }}
           TWITTER_TOKENSECRET: ${{ secrets.TWITTER_TOKENSECRET }}
         run: ./gradlew check sonarqube
+      - name: Cleanup Gradle Cache
+        run: |
+          rm -f ~/.gradle/caches/modules-2/modules-2.lock
+          rm -f ~/.gradle/caches/modules-2/gc.properties