<build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-enforcer-plugin</artifactId>
        <version>1.3.1</version>
        <dependencies>
          <dependency>
            <groupId>custom-rule</groupId>
            <artifactId>custom-rule-sample</artifactId>
            <version>1.0</version>
          </dependency>
        </dependencies>
        <executions>
          <execution>
            <id>enforce</id>
            <configuration>
              <rules>
                <myCustomRule implementation="org.apache.maven.enforcer.rule.MyCustomRule">
                  <shouldIfail>false</shouldIfail>
                </myCustomRule>
              </rules>
            </configuration>
            <goals>
              <goal>enforce</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>