| url | the URL of the Eclipse updatesite | 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 updatesite metadata are considered up to date | No, default to 3600000 (1 hour) | 
    | forceMetadataUpdate | force the update of the updatesite metadata without checking their freshness | No, default to false |