Hi I'm having a problem using addAll two add one Mgraph from SingeTdbDatasetProvider to another such MGraph.
The problem is that the iterator over that added graph will return a ConcurrentModificationException as soon as a triple has been added to the target graph. I don't know how to solve this. Copying the graph to be added to memory doesn't seem to be a compealing solution. Maybe the add-all could be forwarded to Jena but this would solve the problem only in some cases, not if there is any wrapper on the added graph or if union-graphs are used. Cheers, Reto
