}
            return;
        }

        doNotify(node);
        flush();
    }

    private void doAdd(ModelNodeInternal node) {
        flattened.put(node.getPath(), node);
        if (node.isAtLeast(ModelNode.State.Discovered)) {
            doNotify(node);
        }
    }

    private void doNotify(ModelNodeInternal node) {
        notifying = true;
        try {