omitField does not Omit child nodes using fromXML

<person>
<name>john doe</name>
<birthdate>01/01/1978</birthdate>
<addresses>
<address type="mail">
<street>1 test dr</street>
<city>New York</city>
<state>NY</state>
<zip>11122</zip>
</address>
<address type="business">
<street>1 test dr</street>
<city>New York</city>
<state>NY</state>
<zip>11122</zip>
</address>
</addresses>
<gender>M</gender>
</person>

When using fromXML and to skip the entire addresses node, I tried, xStream.omitField(Person.class, "Addresses");

but it still gives com.thoughtworks.xstream.mapper.CannotResolveClassExceptionon 'Address/

How to skip an entire or unknown nodes?

Has anyone had this issue before?