subMonitor.subTask("Writing new resource description for " + uri.lastSegment() + " (" + index++ + " of " + n + ")"); // TODO: NLS

final IResourceDescription.Manager manager = getResourceDescriptionManager(uri);
if (manager != null) {
  // We don't care here about links, we really just want the exported objects so that we can link in the
  // next phase.
  final IResourceDescription description = manager.getResourceDescription(resource);
  final IResourceDescription copiedDescription = new CopiedResourceDescription(description);
  // We also don't care what kind of Delta we get here; it's just a temporary transport vehicle. That interface
  // could do with some clean-up, too, because all we actually want to do is register the new resource
  // description, not the delta.
  newState.register(new DefaultResourceDescriptionDelta(oldState.getResourceDescription(uri), copiedDescription));
  buildData.queueURI(uri);
}