org.linkedin.util-core/src/main/java/org/linkedin/util/url/QueryBuilder.java
private Map<String,String[]> getMap()
  {
    if(_queryParameters != null)
      return _queryParameters;

    _queryParameters = new LinkedHashMap<String,String[]>();
    addQueryToMap(_query.toString());

    return _queryParameters;
  }
private Map<String,String[]> getMap()
  {
    if(_queryParameters != null)
      return _queryParameters;

    _queryParameters = new LinkedHashMap<String,String[]>();
    addQueryToMap(_query.toString());

    return _queryParameters;
  }
Internal call that will return the map. If <code>null</code> then first
populate it
@return the map