protected void setFilterInitParam(FilterMetaData filter, String name, String value) {
   ParamValueMetaData param = new ParamValueMetaData();
   param.setParamName(name);
   param.setParamValue(value);
   List<ParamValueMetaData> params = filter.getInitParam();
   if (params == null) {
     params = new ArrayList<ParamValueMetaData>();
     filter.setInitParam(params);
   }
   params.add(param);
 }