1<project>
2...
3 <properties>
4 <maven.compiler.source>1.8</maven.compiler.source>
5 <maven.compiler.target>1.8</maven.compiler.target>
6 </properties>
7...
8</project>
1<properties> <maven.compiler.target>1.8</maven.compiler.target> <maven.compiler.source>1.8</maven.compiler.source></properties>