result.addAll(getAttachedArtifacts(project));
        return Collections.unmodifiableCollection(result);
    }

    @Override
    @SuppressWarnings("deprecation")
    public void attachArtifact(@Nonnull Project project, @Nonnull ProducedArtifact artifact, @Nonnull Path path) {
        requireNonNull(project, "project cannot be null");
        requireNonNull(artifact, "artifact cannot be null");