Hi Jacopo, I ended up adding the entity source to my client app so I could walk through and see the problem. I've narrowed it down to the GenericEntity is attempting to access a delegator (default) from the pool but the pool is empty.
try {
delegator = new GenericDelegator(delegatorName);
} catch (GenericEntityException e) {
Debug.logError(e, "Error creating delegator", module);
}
