Upgrade to Java 11

borestop/pom.xml

@@ -22,7 +22,7 @@
     <properties>
         <!-- Build properties -->
         <maven.version>3.3.9</maven.version>
-        <java.version>1.8</java.version>
+        <java.version>11</java.version>
         <node.version>v12.16.1</node.version>
         <npm.version>6.14.5</npm.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>