private void check(Account account){
        if(account.isExpired()){
            account.setStatus(EXPIRED);
            accountRepository.save(account);
            throw new CustomException("Account expired");
        }
 }

@Service
public class MyService {
    ....


    public void updateAccount(long id){
        ....
        Account account = accountRepository.findOne(id);
        check(account);
        ...
    }


private void check(Account account){
        if(account.isExpired()){
            account.setStatus(EXPIRED);
            accountRepository.save(account);
            throw new CustomException("Account expired");
        }
 }
}

@ExceptionHandler(value = AccountException.class)
    public ResponseEntity<String> accountException(AccountException ex, HandlerMethod handlerMethod) {
        return new ResponseEntity<>(ex.getMessage(), INTERNAL_SERVER_ERROR);
    }