Install hack in PomModifier to forcibly overwrite pom.xml if the source file was interpolated-pom.xml...this is a problem interaction with the invoker plugin which runs the ITs, where you can't prevent the interpolated-pom.xml from being created on-the-fly, but specifying that as the pom for child modules results in an error since the file isn't there when the IT build starts. This hack allows the elimination of the ManipulatingModelProcessor and all associated code paths, at the expense of a little potentially unexpected behavior in ITs (which sort of counters the invoker's own unexpected behavior)