<plugin>
  <groupId>com.diffplug.spotless</groupId>
  <artifactId>spotless-maven-plugin</artifactId>
  <version>2.12.2</version>
  <executions>
    <execution>
      <goals>
        <goal>check</goal>
      </goals>
    </execution>
  </executions>
  <configuration>
    <java>
      <googleJavaFormat />
    </java>
    <groovy>
      <importOrder />
      <greclipse />
    </groovy>
  </configuration>
</plugin>