question: invoked once immediately after construction concode_field_sep String WHITELIST_USERS_CONF concode_elem_sep Set<String> users concode_field_sep boolean permit
target: void function ( Map arg0 ) { users = new HashSet < > ( ) ; if ( arg0 . containsKey ( WHITELIST_USERS_CONF ) ) { users . addAll ( ( Collection < String > ) arg0 . get ( WHITELIST_USERS_CONF ) ) ; } }