Why can't I use reverse DNS to create a java / gradle module on IntelliJ IDE?

Question

How exactly do I name an IntelliJ project, module, packages etc? I tried to name a module in reverse dns, but IntelliJ would not allow it, so I am obviously doing something wrong. Also, I'm confused between the difference between a Java Module and an IntelliJ Module.

Update: There was a bug with IntelliJ's Maven Artifactid, and a patch was released this month to fix it.

Answer 1

IntelliJ IDEA should accept dots in the names if you use the current release or EAP version. 2022.1 version had a known bug preventing using dots in the project names.