public boolean hasMetadataResolutionExceptions() {
        return metadataResolutionExceptions != null;
    }

    public MetadataResolutionResult addMetadataResolutionException(ArtifactResolutionException e) {
        metadataResolutionExceptions = initList(metadataResolutionExceptions);

        metadataResolutionExceptions.add(e);

        exceptions = initList(exceptions);