solr extends query

[sara hajili]

hi all.
i wanna to expand my queries with wordnet ...
so i try to write my own SearchHandler class."/mysearchHandler"
so i add new requestHandler in solr-config  /mySearchHandler
but i faced with problem. i found some field that they were package access .
so i get access error in run query.(this field does n't have any getter to
use them)
and now my question is what is best approach to expand my queris with
wordnet?
is good to write my own searchHandler?and overwrite it to get my result?
tnx