How To Publish A DOAP File

You need to publish it somewhere where the DOAP file will be accessible via an HTTP or HTTPS request like a web server or SVN.

By default, the DOAP Plugin generates the file in the reporting output directory (i.e. ${project.reporting.outputDirectory}). So, it will be available when you will deploy the Maven site via the site:deploy goal. See Integrated DOAP Plugin With The Site Plugin part for more information.