private Set<MavenArtifact> getUnclassifiedArtifactsWithExtension() {
        populateFromComponent();
        return CollectionUtils.filter(mainArtifacts, mavenArtifact -> hasNoClassifier(mavenArtifact) && hasExtension(mavenArtifact));
    }

    private static boolean hasNoClassifier(MavenArtifact element) {
        return element.getClassifier() == null || element.getClassifier().length() == 0;
    }