XMLUnmarshalling attribut linebreak ?

Hei Folks,

does anyone know how i Unmarshall a XML with attribut linebreaks?

....
<child>
<InnerChild id="01" level="product" value="Hello 
This is
a new line
test case"/>
</child>
...

All I get is the Attribut in one line.
Im not able to modify the XML.
Im using JAXB and a given .xds to generate the shema classes.

Chris