Up to java lts

Author: Throyer

.github/workflows/maven.yml

@@ -16,10 +16,10 @@ jobs:
 
     steps:
     - uses: actions/checkout@v2
-    - name: Set up JDK 16
+    - name: Set up JDK 17
       uses: actions/setup-java@v2
       with:
-        java-version: '16'
+        java-version: '17'
         distribution: 'adopt'
     - name: Build with Maven
       run: mvn -B package --file pom.xml

system.properties

@@ -1 +1 @@
-java.runtime.version=16
+java.runtime.version=17