BindingAwareConcurrentModel

Subclass of ConcurrentModel that automatically removes the BindingResult object when its corresponding target attribute is replaced through regular Map operations.

This is the class exposed to handler methods by Spring WebFlux, typically consumed through a declaration of the org.springframework.ui.Model interface as a parameter type. There is typically no need to create it within user code. If necessary a handler method can return a regular java.util.Map, likely a java.util.ConcurrentMap, for a pre-determined model.

BindingAwareModelMap

Subclass of org.springframework.ui.ExtendedModelMap that automatically removes a org.springframework.validation.BindingResult object if the corresponding target attribute gets replaced through regular Map operations.

This is the class exposed to handler methods by Spring MVC, typically consumed through a declaration of the org.springframework.ui.Model interface. There is no need to build it within user code; a plain org.springframework.ui.ModelMap or even a just a regular Map with String keys will be good enough to return a user model.