code: public final NameProvider nameProvider(Name<?> containerName) {
  		NameProvider result = this.nameProviders.get(containerName);
  		if(result==null) {
  			throw new ApplicationRuntimeException("Unknown container '"+containerName+"'");
  		}
  		return result;
  	}
docs: Return the name provider registered for a given container resource.
  
  @param containerName
  the name of the container.
  @return the provider for the specified container resource.