Project JIGSAW does not work

[Everson Ferreira da Cunha Junior]

Hi guys!

I'm disappoint with jigsaw project. I've run the first example of guide on
Ubuntu Linux, but it has not worked. Follow the error:

"src/com.greetings/module-info.java:1: error: class, interface, or enum
expected
module com.greetings { }"


I've found nothing in internet about it. What can it be ?

Thank you.

Regards,
Everson Jr