pom.xml

    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-checkstyle-plugin</artifactId>
        <version>2.17</version>
        <dependencies>
          <dependency>
            <groupId>com.puppycrawl.tools</groupId>
            <artifactId>checkstyle</artifactId>
            <version>6.12.1</version>
          </dependency>
          <dependency>
            <groupId>com.wealthfront</groupId>
            <artifactId>wealthfront-test-commons</artifactId>
            <version>${wealthfront-test-commons-version}</version>
          </dependency>
        </dependencies>
        <executions>
          <execution>
            <id>validate</id>
            <phase>validate</phase>
            <configuration>
              <configLocation>wfstyle.xml</configLocation>
              <encoding>UTF-8</encoding>
              <consoleOutput>true</consoleOutput>
              <failsOnError>true</failsOnError>
              <includes>**/*.java</includes>
              <includeTestSourceDirectory>true</includeTestSourceDirectory>
              <suppressionsLocation>src/checkstyle_suppressions.xml</suppressionsLocation>
              <cacheFile>${basedir}/checkstyle-cachefile</cacheFile>
            </configuration>
            <goals>
              <goal>check</goal>
            </goals>
          </execution>
        </executions>
      </plugin>