mvn expected: CRLF

Checkstyle error is not severe. You can disable checkstyle plugin, put <skip>true</skip> in pom.xml file:

<project>
  ...
  <build>
    ...
    <plugins>
      ...
      <plugin>
        <artifactId>maven-checkstyle-plugin</artifactId>
        <configuration>
          <skip>true</skip>
        </configuration>
      </plugin>
      ...
    </plugins>
    ...
  </build>
  ...
</project>

Then the project should be built successfully.

If you do not want to change your pom.xml you may set the skip to true from command line using the –D option (override the skip parameter within an execution):

mvn compile -Dcheckstyle.skip=true