returns the username used to authenticate the user . can not return null . concode_field_sep long serialVersionUID concode_elem_sep User user concode_elem_sep List<GrantedAuthority> authorities concode_elem_sep Log LOG concode_field_sep String getPassword concode_elem_sep boolean isAccountNonExpired concode_elem_sep boolean isCredentialsNonExpired concode_elem_sep boolean isEnabled concode_elem_sep User getUser concode_elem_sep boolean isAccountNonLocked concode_elem_sep List<GrantedAuthority> getAuthorities
String function ( ) { return user . getUsername ( ) ; }