fix: verifyPlugin on java 11

.github/workflows/build.yml

@@ -82,6 +82,47 @@ jobs:
       - name: Run Linters and Test
         run: ./gradlew check
 
+
+  # Run verifyPlugin
+  verify_plugin:
+    name: verify_plugin
+    needs: gradleValidation
+    runs-on: ubuntu-latest
+    steps:
+
+      # Setup Java 1.8 environment for the next steps
+      - name: Setup Java
+        uses: actions/setup-java@v2
+        with:
+          distribution: zulu
+          java-version: 11
+
+      # Check out current repository
+      - name: Fetch Sources
+        uses: actions/checkout@v2.3.4
+        with:
+          submodules: 'true'
+
+      - name: Change IDE source
+        run: sed 's/#\(platformVersion\)/\1/;s/platformLocalPath/#\0/' -i gradle.properties
+
+      - name: Build astor
+        run: cd astor && mvn install -DskipTests=true --settings mvn-settings.xml
+
+      # Cache Gradle dependencies
+      - name: Setup Gradle Dependencies Cache
+        uses: actions/cache@v2.1.6
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-caches-${{ hashFiles('**/*.gradle', '**/*.gradle.kts', 'gradle.properties') }}
+
+      # Cache Gradle Wrapper
+      - name: Setup Gradle Wrapper Cache
+        uses: actions/cache@v2.1.6
+        with:
+          path: ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-wrapper-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}
+
       # Run verifyPlugin Gradle task
       - name: Verify Plugin
         run: ./gradlew verifyPlugin