@Override
    public String toString() {
        return new StringJoiner(", ", UserDto.class.getSimpleName() + "[", "]")
                .add("username='" + username + "'")
                .add("fullName='" + fullName + "'")
                .add("email='" + email + "'")
                .add("joinedOn='" + joinedOn + "'")
                .add("locale=" + locale)
                .add("admin=" + admin)
                .toString();
    }
DTO of {@link UserBean}.

@author Marc Savy {@literal <marc@blackparrotlabs.io>}
manager/api/beans/src/main/java/io/apiman/manager/api/beans/idm/UserDto.java