}
GenericMetadataFacet metadataFacet =
(GenericMetadataFacet) projectVersionMetadata.getFacet( GenericMetadataFacet.FACET_ID );
if ( metadataFacet != null && metadataFacet.toProperties() != null )
{
Map<String, String> properties = metadataFacet.toProperties();
properties.remove( key );
metadataFacet.setAdditionalProperties( properties );
}