Agent fails to send inventory to the JBoss ON Server with the message "detached entity passed to persist: org.rhq.core.domain.configuration.Configuration"

Issue

• xa datasource resources are not discovered in JBoss ON UI;
• We have created two xa datasources in a JBoss instance and they are visible when using JBoss management console but not in JBoss ON UI;
• An agent fails to send inventory to the JBoss ON Server with the message:

WARN  [InventoryManager.discovery-1] (rhq.core.pc.inventory.RuntimeDiscoveryExecutor)- Exception caught while executing runtime discovery scan rooted at [platform].

[Warning] javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.PersistentObjectException: detached entity passed to persist: org.rhq.core.domain.configuration.Configuration