ANT_17_BRANCH/src/etc/testcases/taskdefs/antlib.current-test.xml

<?xml version="1.0"?>
<antlib xmlns:c="ant:current">
  <typedef name="echo2" classname="org.apache.tools.ant.taskdefs.Echo"/>
  <presetdef name="preset.echo">
    <typedef classname="org.apache.tools.ant.taskdefs.Echo"/>
  </presetdef>
  <c:preset.echo name="p"/>
  <macrodef name="useecho2">
    <sequential>
      <c:echo2>Echo2 inside a macro</c:echo2>
    </sequential>
  </macrodef>
</antlib>