| repoXmlURL | the URL of the obr.xml to load. | Yes | 
    | repoXmlFile | the local path of the obr.xml to load. | Yes | 
    | requirementStrategy | defines how strict should be the OSGi resolution. Can be one of first or noambiguity | No, default to noambiguity | 
    | metadataTtl | the time in milliseconds the obr.xml is considered up to date | No, default to 3600000 (1 hour) | 
    | forceMetadataUpdate | force the update of the obr.xml without checking its freshness | No, default to false |