Description of problem:
Can not execute ResourceManager.getLiveResourceAvailability from CLI or Remote API due to:

Caused by: org.hibernate.PersistentObjectException: detached entity passed to persist: org.rhq.core.domain.configuration.definition.ConfigurationDefinition
	at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:79)
	at org.hibernate.impl.SessionImpl.firePersistOnFlush(SessionImpl.java:644)
	at org.hibernate.impl.SessionImpl.persistOnFlush(SessionImpl.java:636)
	at org.hibernate.engine.CascadingAction$9.cascade(CascadingAction.java:323)
	at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
	at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
	at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:131)
	at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:122)
	at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:65)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
	at org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:515)
	... 101 more


Version-Release number of selected component (if applicable):
JON 3.1

How reproducible:
Always

Steps to Reproduce:
1. Install JON system and add one or more resources to inventory
2. Locate a valid resource ID for a resource in inventory - probably 10001
3. Execute the following from the JON CLI:

ResourceManager.getLiveResourceAvailability(10001)

  
Actual results:
        Wrapped java.lang.RuntimeException: [Warning] javax.transaction.RollbackException: [com.arjuna.ats.internal.jta.transaction.arjunacore.commitwhenaborted] [com.arjuna.ats.internal.jta.transaction.arjunacore.commitwhenaborted] Can't commit because the transaction is in aborted state (<Unknown source>#1)
ResourceManager.getLiveResourceAvailability(10001) 
^


Expected results:
The live availability for the resource with ID 10001 (in my case Platform).