SolrJ Howto get local params from QueryResponse

[Holger Rieß]

Hi,
how can I get local params like '{!ex=dyn,cls} AAA001001_0_1.1.1_ss' from 
QueryResponse? I've tagged filter queries and facet fields with different tags 
(p.e.'dyn','cls').
I can see the tags in the QueryResponse XML facet.field section:
 <arr name="facet.field">
        <str>{!ex=dyn}AAA001001_0_1.1.1_ss</str>
        ...
 </arr>

But the FacetField class has no method List<String> getLocalParams().
My goal is to make an server side representation of the QueryResponse 
components and sort the facet fields on the client side by the tag.

Thanks, Holger