no Jira, set maven compiler source/target to 1.8, was 1.7
properties already, they should be injected manually into the plugins.
-->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ <maven.compiler.target>1.8</maven.compiler.target>
+ <maven.compiler.source>1.8</maven.compiler.source>
<maven.surefire.argLine />
<maven.surefire.java9 />
