List < SNIServerName > function ( ) { throw new UnsupportedOperationException ( ) ; }
obtains a list containing all sniservername s of the requested server name indication sni extension . in server mode , unless the return list is empty , the server should use the requested server names to guide its selection of an appropriate authentication certificate , and/or other aspects of security policy . in client mode , unless the return list is empty , the client should use the requested server names to guide its endpoint identification of the peer 's identity , and/or other aspects of security policy . concode_field_sep PlaceHolder placeHolder concode_field_sep String[] getLocalSupportedSignatureAlgorithms concode_elem_sep String[] getPeerSupportedSignatureAlgorithms