I haven't filled out a tax return in years. He couldn't have been more wrong. This is not only false, it can potentially cost you a lot of money, and even land you in federal prison. For those whose entire income comes from Japan, filling out your tax return will be quite simple. After completing the rest of the tax form you'll find you won't owe any taxes.
Most people have, however, other income from back home.
If you lived in Japan the entire 1999 year, then you should fill out the Bona Fide Residence Test to claim your exclusion. If you came to Japan in midyear, then you'll need to fill out the Physical Presence Test. Those who live abroad receive an automatic two month extension for filing their taxes, but those filing the Physical Presence Test may need an extra two-month extension in addition to this automatic extension. In this case you will need to submit Form 4868 Request For Extension which must be postmarked before June 15. This form is filed directly to the Treasury Department and not with your tax return, but it can carry numerous tax related penalties if not submitted.