Other Map type values will be merged in with this map if the value is un-named. If a name is supplied they will remain as mapped maps.
A mapped type can be used as an input where it will have the same format as a properties file.
A simple map.
...
<map>
<value name="FRUIT" value="apple"/>
<value name="answer" value="42"/>
</map>
...
Other mapped types being merged in.
...
<map>
<system/>
<environment command="env"/>
</map>
...