question: return a list of authorities of this genericuser concode_field_sep long serialVersionUID concode_elem_sep GroupService groupService concode_elem_sep UserAuthoritiesDTO user concode_elem_sep UserService userService concode_field_sep void setNewGroups concode_elem_sep void save concode_elem_sep List<GroupDTO> getFreeGroups concode_elem_sep Long getId concode_elem_sep List<GroupDTO> getGroups concode_elem_sep UserView getUserView concode_elem_sep String getUsername
target: List < ? > function ( ) { return user . getAuthorities ( ) ; }