final RuntimeModelBuilder runtimeModelBuilder = locator.getService(RuntimeModelBuilder.class);
runtimeModelBuilder.setProcessingProviders(processingProviders);
// assembly request processing chain
/**
* Root hierarchical request matching acceptor.
* Invoked in a single linear stage as part of the main linear accepting chain.
*/
final Router resourceRoutingRoot = runtimeModelBuilder.buildModel(resourceModel.getRuntimeResourceModel(), false);