upgrade java to 15

Author: Evan Hu

.github/workflows/maven-publish.yml

@@ -9,7 +9,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-java@v1
         with:
-          java-version: 1.8
+          java-version: 15
       - name: Publish package
         run: mvn --batch-mode deploy
         env:

.github/workflows/maven.yml

@@ -16,9 +16,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up JDK 1.8
+    - name: Set up JDK 15
       uses: actions/setup-java@v1
       with:
-        java-version: 1.8
+        java-version: 15
     - name: Build with Maven
       run: mvn -B package --file pom.xml

pom.xml

@@ -6,11 +6,11 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>info.xiaomo</groupId>
     <artifactId>g-engine</artifactId>
-    <version>3.2.2</version>
+    <version>3.2.3</version>
 
     <properties>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>15</maven.compiler.source>
+        <maven.compiler.target>15</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>