maven/maven-model/maven.xml

<project xmlns:modello="modello" xmlns:ant="jelly:ant" xmlns:maven="jelly:maven" xmlns:j="jelly:core">
  <preGoal name="java:compile">
    <ant:path id="modello.sources" location="target/generated-sources" />
    <maven:addPath id="maven.compile.src.set" refid="modello.sources" />
    <j:set var="sourcesPresent" value="true" />

    <modello:generate model="maven.mdo" type="java" packageWithVersion="false" version="3.0.0" targetDirectory="target/generated-sources" />
    <modello:generate model="maven.mdo" type="dom4j-reader" packageWithVersion="false" version="3.0.0" targetDirectory="target/generated-sources" />
    <modello:generate model="maven.mdo" type="dom4j-writer" packageWithVersion="false" version="3.0.0" targetDirectory="target/generated-sources" />

    <!-- Need the original package as well -->
    <ant:copy tofile="target/maven.mdo.m1" file="maven.mdo" />
    <ant:replace file="target/maven.mdo.m1" token="org.apache.maven.model" value="org.apache.maven.project" />

    <modello:generate model="target/maven.mdo.m1" type="java" packageWithVersion="false" version="3.0.0" targetDirectory="target/generated-sources" />
    <modello:generate model="target/maven.mdo.m1" type="dom4j-reader" packageWithVersion="false" version="3.0.0" targetDirectory="target/generated-sources" />
    <modello:generate model="target/maven.mdo.m1" type="dom4j-writer" packageWithVersion="false" version="3.0.0" targetDirectory="target/generated-sources" />
  </preGoal>
</project>