platform-logic/restconfapi-yang/pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>org.onap.sdnc.oam</groupId>
        <artifactId>platform-logic</artifactId>
        <version>2.0.0-SNAPSHOT</version>
    </parent>

    <groupId>org.onap.sdnc.oam</groupId>
    <artifactId>platform-logic-restconfapi-yang</artifactId>
    <version>2.0.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <name>sdnc-oam :: platform-logic :: ${project.artifactId}</name>
    <description>Contains Restconf API YANG</description>

    <build>
        <plugins>
            <plugin>
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.6</version>
                <executions>
                    <execution>
                        <id>copy-version</id>
                        <goals>
                            <goal>copy-resources</goal>
                        </goals><!-- here the phase you need -->
                        <phase>validate</phase>
                        <configuration>
                            <outputDirectory>../target/restconfapi/yang</outputDirectory>
                            <resources>
                                <resource>
                                    <directory>src/main/yang</directory>
                                    <includes>
                                        <include>**/*.yang</include>
                                    </includes>
                                    <filtering>true</filtering>
                                </resource>
                            </resources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>