commons-collections/maven.xml

<project default="java:jar" xmlns:j="jelly:core" xmlns:ant="jelly:ant">

  <postGoal name="clover:on">
    <j:set var="maven.junit.sysproperties" value="${maven.junit.sysproperties} org.apache.commons.collections:with-clover"/>
    <j:set var="org.apache.commons.collections:with-clover" value="true"/>
  </postGoal>

  <postGoal name="jar:jar">      
      <ant:tstamp/>
      <ant:property name="workdir" value="${java.io.tmpdir}/buildtemp_${DSTAMP}${TSTAMP}"/>
      <ant:unjar dest="${workdir}" src="${maven.build.dir}/${maven.final.name}.jar"/>

      <ant:jar jarfile="${maven.build.dir}/${pom.artifactId}-testframework-${pom.currentVersion}.jar" manifest="${workdir}/META-INF/MANIFEST.MF">
         <ant:fileset dir="${maven.build.dir}/test-classes">
            <ant:include name="**/AbstractTest*.class"/>
            <ant:include name="**/BulkTest*.class"/>
         </ant:fileset>
      </ant:jar>
      
      <delete dir="${workdir}"/>
  </postGoal>

</project>