开发笔记:if/ifelse/elsewithlambdaexpression[closed]

我正在编写一小段逻辑来检查Facebook API是否为我检索用户电子邮件，如果没有，我正在从请求参数设置电子邮件，或者如果不存在，我会抛出异常。我的问题是，你是否会根据Java 8-Lambda惯例在美学上改变任何东西以使其看起来更好？

{
UserProfile newUser = new UserProfile(fbUser.getId());
if( null == fbUser.getEmail() ) { newUser.setEmail(userMail); }
if( null == newUser.getEmail() ) { throw new MissingServletRequestParameterException("email", "String"); }
newUser.setEmail(fbUser.getEmail());
newUser.setUsername(fbUser.getName());
newUser.setPassword(passwordEncoder.encode(fbReq.getAccessToken()));
newUser.setFirebaseToken(fbReq.getFirebaseToken());
newUser.setLanguage(HoopLocale.getById(locale.getLanguage().toLowerCase()).toString());
UserAccount acc = new UserAccount();
acc.setCurrency(currencyRepo.findById(CurrencyName.getById(fbReq.getCurrency()).getId())
.orElseThrow(() -> new ResourceNotFoundException("Currency id", "id", fbReq.getCurrency())));
newUser.setUserAccount(acc);
userRepository.save(newUser);
}