@Override
public void contribute(InFlightMetadataCollector metadataCollector,
                       IndexView jandexIndex) {
    for (MetadataContributor contributor : contributors) {
        contributor.contribute(metadataCollector, jandexIndex);
    }
}
 

public void setMetadataContributor(MetadataContributor metadataContributor) {
    this.metadataContributor = metadataContributor;
}
 

@Autowired(required = false)
public void setMetadataContributor(MetadataContributor metadataContributor) {
    this.metadataContributor = metadataContributor;
}