Major Description
SpecificRequestor does not handle hashCode / equals / toString in its invoke method. This problem cropped up when using commons-pool2's GenericKeyedObjectPool.create(), which attempts to put pool object wrappers into a map, keying off the original object:
objectDeque.getAllObjects().put(p.getObject(), p);
The put calls hashCode() which is not handled, resulting in an AvroRemoteException.
See proposed patch for details.