src/it/pom-generation/build.xml

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<project name="maven-ant-tasks" default="test" xmlns:artifact="urn:maven-artifact-ant" xmlns:test="urn:test-tasks">

  <target name="initTaskDefs">
    <xmlproperty file="../../../pom.xml" prefix="pom.xml" />

    <path id="maven-ant-tasks.classpath" path="../../maven-ant-tasks-${pom.xml.project.version}.jar" />
    <typedef resource="org/apache/maven/artifact/ant/antlib.xml" uri="urn:maven-artifact-ant"
             classpathref="maven-ant-tasks.classpath"/>
  </target>


  <target name="test" depends="initTaskDefs">

    <artifact:pom id="parent-pom" groupId="local.maven-ant-tasks" artifactId="pom-generation-parent" version="1.0-SNAPSHOT">
        <license name="apache" url="http://www.apache.org"/>
        <dependencyManagement>
          <dependency groupId="junit" artifactId="junit" version="4.1"/>
          <dependency groupId="org.codehaus.plexus" artifactId="plexus-utils" version="1.5.5"/>
        </dependencyManagement>
    </artifact:pom>

    <artifact:pom id="child-pom" artifactId="pom-generation-child">
        <parent groupId="local.maven-ant-tasks" artifactId="pom-generation-parent" version="1.0-SNAPSHOT"/>
        <dependency groupId="junit" artifactId="junit" scope="test"/>
        <dependency groupId="org.codehaus.plexus" artifactId="plexus-utils"/>
    </artifact:pom>

    <mkdir dir="target"/>

    <artifact:writepom pomRefId="parent-pom" file="target/parent-pom.xml"/>
    <artifact:writepom pomRefId="child-pom" file="target/child-pom.xml"/>

    <artifact:dependencies fileSetId="mydeps" pomRefId="child-pom"/>

      <copy todir="target">
      <fileset refid="mydeps"/>
    </copy>

  </target>

</project>