Update filename.  I suggest also adding a comment that this file is used if pags.properties has org.jasig.portal.groups.pags.PersonAttributesGroupStore.configurationClass=org.jasig.portal.groups.pags.EntityPersonAttributesConfiguration.

I also suggest updating PAGSGroupStoreConfig.xml with a comment indicating that the xml-based configuration is deprecated in favor of a JPA implementation, but can be used if you alter pags.properties to set org.jasig.portal.groups.pags.PersonAttributesGroupStore.configurationClass=org.jasig.portal.groups.pags.XMLPersonAttributesConfiguration