this.origin_ctx = null;
            }
        }
    }


    /**
     * Get members of the group represented by this SID, if it is one.
     * 
     * @param authorityServerName
     * @param tc
     * @param flags
     * @return the members of the group
     * @throws IOException
     */

     * @param auth The credentials required to query groups and group members.
     * @param flags Flags that control the behavior of the operation. When all
     * name associated with SIDs will be required, the SID_FLAG_RESOLVE_SIDS
     * flag should be used which causes all group member SIDs to be resolved
     * together in a single more efficient operation.
     */