public TravelOffice() { MailServiceImpl mailServiceImpl = new MailServiceImpl(); mailServiceImpl.setSmtpHost("test"); mailServiceImpl.setSmtpPass("test"); mailServiceImpl.setUseSSL(true); mailServiceImpl.setSmtpUser("tets"); mailService = mailServiceImpl; newsletterService = new NewsletterServiceImpl(customerService, tripService, mailService); customerService.loadFromXml(); }