plugin/src/main/java/io/fabric8/maven/plugin/mojo/build/ApplyMojo.java
protected File getRootProjectFolder() {
        File answer = null;
        MavenProject project = getProject();
        while (project != null) {
            File basedir = project.getBasedir();
            if (basedir != null) {
                answer = basedir;
            }
            project = project.getParent();
        }
        return answer;
    }
protected File getRootProjectFolder() {
        File answer = null;
        MavenProject project = getProject();
        while (project != null) {
            File basedir = project.getBasedir();
            if (basedir != null) {
                answer = basedir;
            }
            project = project.getParent();
        }
        return answer;
    }
Returns the root project folder