build.xml

<?xml version="1.0" encoding="UTF-8"?>

<project name="wannabecool" basedir="." xmlns:mvn="urn:maven-artifact-ant" default="enunciate">

  <target name="clean">
    <delete dir="target"/>
  </target>

  <target name="enunciate">
    <typedef resource="org/apache/maven/artifact/ant/antlib.xml" uri="urn:maven-artifact-ant" loaderref="antlib.loader">
      <classpath>
        <fileset dir="${basedir}/lib">
          <include name="maven-ant-tasks-*.jar"/>
        </fileset>
      </classpath>
    </typedef>

    <mvn:pom id="current.pom" file="${basedir}/pom.xml"/>
    <echo message="Current version is: ${current.pom.version}"/>

    <mvn:dependencies pathId="enunciate.classpath">
      <dependency groupId="com.webcohesion.enunciate" artifactId="enunciate-top" version="2.0.0"/>
    </mvn:dependencies>

    <mvn:dependencies pathId="project.classpath" pomRefId="current.pom"/>

    <taskdef name="enunciate" classname="com.webcohesion.enunciate.EnunciateTask">
      <classpath refid="enunciate.classpath" />
    </taskdef>

    <enunciate basedir="${basedir}/src/main/java" buildDir="${basedir}/target/${current.pom.build.finalName}">
      <include name="**/*.java" />
      <classpath refid="project.classpath" />
    </enunciate>
  </target>

</project>