code: public String[] getSearchRoots() {
  
          List<String> l = m_parameters.getRoots();
          return l.toArray(new String[l.size()]);
      }
docs: Returns the search roots.<p>
  
  Only resources that are sub-resources of one of the search roots
  are included in the search result.<p>
  
  The search roots are used <i>in addition to</i> the current site root
  of the user performing the search.<p>
  
  By default, the search roots contain only one entry with an empty string.<p>
  
  @return the search roots