public List<StreamID> getNonProcessedStreamIDs()
    {
        final List<StreamID> result = new ArrayList<>(receivedStreamIDs);
        result.removeAll(processedStreamIDs);
        return result;
    }
Returns all stream IDs that have been received, but have not yet been marked as being processed.

@return Stream IDs still being processed.
xmppserver/src/test/java/org/jivesoftware/openfire/session/RemoteInitiatingServerDummy.java