ant-integration-in-maven-project-structure.xml

<plugin>
    <!-- Ant Maven Plugin -->
    <artifactId>maven-antrun-plugin</artifactId>
    <version>1.8</version>
    <dependencies>

        <!-- For Ant Contrib Tasks -->
        <dependency>
            <groupId>ant-contrib</groupId>
            <artifactId>ant-contrib</artifactId>
            <version>1.0b3</version>
            <exclusions>
                <exclusion>
                    <groupId>ant</groupId>
                    <artifactId>ant</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <executions>
        <!-- Execution Definition -->
        <execution>
            <id>antRun</id>
            <phase>prepare-package</phase>
            <goals>
                <goal>run</goal>
            </goals>
            <configuration>
                <failOnError>true</failOnError>
                <target>

                    <!-- Properties pass to antBuild Target -->
                    <property name="buildDir" value="${project.build.directory}"/>
                    <property name="srcDir" value="${project.build.directory}"/>

                    <!-- Good way to separate antBuild config from pom otherwise it becomes dirty pom -->
                    <ant antFile="antBuild.xml" target="antBuild"/>

                </target>
            </configuration>
        </execution>
    </executions>
</plugin>