Atlas-create-confluence-plugin is broken

I ran atlas-create-confluence-plugin and after running atlas-run in that directory, I get 404 errors from the server. In addition, IntelliJ tells me that there are a lot of unresolved dependencies from the pom.xml. It seems that the project skeleton for Confluence plugins is out of date. How do I create a Confluence plugin now?

Which JDK are you using? If not 8, then try that.

I am using JDK 8