As mentioned in Chapter 7, JBoss ESB supports other UDDI providers as a registry provider. Other than jUDDI, the two other UDDI implementations that have been tested with JBoss ESB are HP Systinet (version 6.64):
http://www8.hp.com/us/en/software/software-product.html?compURI=tcm:245-936884
And SOA Software ServiceManager (version 6.0.1):
http://www.soa.com/products/service_manager/
Documents with details on integrating one of these providers are available at the JBoss ESB documentation page: