enforcer-api/src/custom-rule-sample/usage-pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-enforcer-plugin-sample-usage</artifactId>
    <version>1</version>
    <packaging>jar</packaging>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-enforcer-plugin</artifactId>
                <version>1.0-alpha-4</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>
</project>