I'm using 11.1.2, and Maven 3.0.4.
I have a Maven project that uses the maven-shade-plugin to rename packages. of course, intellij doesn't know about this.
So, I asked Idea to ignore the project that uses shade, because there is in fact no source code in there.
Idea continues to not find these packages even after reimport and rebuild. The project with shade in it does not show up on the library list.