How to map multiple values to a map like structure?

We have mapping requirement to map multiple values like username, password, group to a list of name value pairs:

<credentials>

    <user>jon</user>

    <password>****</password>

    <group>admin</group>

</credentials>

to

<list>

    <entry>

        <name>user</name>

        <value>jon</value>

    </entry>

    <entry>

        <name>password</name>

        <value>****</value>

    </entry>

    <entry>

        <name>group</name>

        <value>admin</value>

    </entry>

</list>

 

Can this be done with BPM standard mapping features? If yes how can it be done?

Thanks,

Jochen