Ant >> Tasks >> pathconvert
Converts nested ResourceCollections into a path
<!-- Find the Eclipse launcher and assing its location to the @{app}.launcher property -->
<pathconvert property="@{app}.launcher">
<first count="1">
<sort>
<fileset dir="${@{app}.deploy.dir}/plugins" includes="**/org.eclipse.equinox.launcher_*.jar" />
<reverse xmlns="antlib:org.apache.tools.ant.types.resources.comparators">
<date />
</reverse>
</sort>
</first>
</pathconvert>
>> property = The name of the property in which to place the converted path.