config/src/main/java/org/springframework/security/config/core/userdetails/ReactiveUserDetailsServiceResourceFactoryBean.java
public static ReactiveUserDetailsServiceResourceFactoryBean fromResource(Resource propertiesResource) {
		ReactiveUserDetailsServiceResourceFactoryBean result = new ReactiveUserDetailsServiceResourceFactoryBean();
		result.setResource(propertiesResource);
		return result;
	}
public static ReactiveUserDetailsServiceResourceFactoryBean fromResource(Resource propertiesResource) {
		ReactiveUserDetailsServiceResourceFactoryBean result = new ReactiveUserDetailsServiceResourceFactoryBean();
		result.setResource(propertiesResource);
		return result;
	}
Create a ReactiveUserDetailsServiceResourceFactoryBean with a Resource that is a Properties file in the
format defined in {@link UserDetailsResourceFactoryBean}.

@param propertiesResource the Resource that is a properties file that contains the users
@return the ReactiveUserDetailsServiceResourceFactoryBean