Content Comparison

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-checkstyle-plugin</artifactId>
    <version>3.1.2</version>
    <configuration>
        <encoding>UTF-8</encoding>
        <consoleOutput>true</consoleOutput>
        <failsOnError>false</failsOnError>
        <linkXRef>false</linkXRef>
    </configuration>
    <executions>
        <execution>
            <id>validate</id>
            <phase>validate</phase>
            <goals>
                <goal>checkstyle</goal>
            </goals>
        </execution>
    </executions>
</plugin>