update java version

.github/workflows/build.yml

@@ -13,10 +13,10 @@ jobs:
         fetch-depth: 0
     - name: Get Fetch Tags
       run: git -c protocol.version=2 fetch --tags --progress --no-recurse-submodules origin
-    - name: Set up JDK 1.8
+    - name: Set up JDK 1.11
       uses: actions/setup-java@v1
       with:
-        java-version: 1.8
+        java-version: 11
     - name: Grant execute permission for gradlew
       run: chmod +x gradlew
     - name: Build with Gradle

.github/workflows/release.yml

@@ -15,10 +15,10 @@ jobs:
         uses: actions/checkout@v2
         with:
           fetch-depth: 0
-      - name: set up JDK 1.8
+      - name: Set up JDK 1.11
         uses: actions/setup-java@v1
         with:
-          java-version: 1.8
+          java-version: 11
       - name: Build with Gradle
         run: ./gradlew build
       - name: Get Release Version

jitpack.yml

@@ -0,0 +1,2 @@
+jdk:
+  - openjdk11