"artifactDescriptorInvalid",
                "for " + event.getArtifact() + ": " + event.getException().getMessage());
    }

    @Override
    public void artifactDescriptorMissing(RepositoryEvent event) {
        println("artifactDescriptorMissing", "for " + event.getArtifact());
    }

    @Override
    public void artifactInstalled(RepositoryEvent event) {