If your Hi-Framework app with tomcat embedded isn't finding Controllers nor Frontiers, it might have to deal with the fact that it tries to load classes from your filesystem's absolute path.
DEBUG org.emerjoin.hi.web.BootstrapUtils - Indexing URL : file:/C:/Users/romildo.cumbe/Documents/Netbeans%20Projects/my-app/target/classes/
And it won't find them if you have spaces within your path.
So you would have to rename your directory with spaces in it's name or move your application to elsewhere.
In this case it was my "Netbeans Projects" directory causing troubles