Hello, I'm trying to send e-mail. I've get this code from javadoc from dukascopy.

        try {
             // Note: not to hold up the strategy execution, consider calling the sending logic from another thread
             Future future = utils.sendMail("[email protected]", "Test mail subject", "Test mail \n Bye.");
             console.getOut().println("Waiting on response");
             IEmailResponse response = future.get(30, TimeUnit.SECONDS);
             if (response.isError()) {
                 console.getErr().println(response);
             } else {
                 console.getOut().println("e-mail successfully sent!");
             }
         } catch (Exception e) {
             e.printStackTrace(console.getErr());
         }

Unfortunately after compilation I get a message:

Somebody have idea how to solve this problem?