Blarg#8: A stupid user trick for goggle to cache
Java's platform independence is great, except when it...er, the user doesn't work. Take for instance JavaMail. The API is great. Who doesn't love the ability to send e-mail, and few other simple programming tricks can make your boss ooh and ah like a customized e-mail.
If you are using linux and get the following, very-google-cachable exception.
javax.mail.MessagingException: 501 5.0.0 HELO requires domain address
You'd be out of luck. Until now that is. The problem is as simple as translating your computer's IP address to a name. Just add the appropriate entry in /etc/hosts that converts your computer's IP to its hostname. For example, if your hostname is "Computer" (if you don't know type cat /etc/hostname), add "127.0.0.1 Computer" to /etc/hosts (or echo "127.0.0.1 Computer" >> /etc/hosts).
Run the code again and you are set.