See: Description
| Interface | Description | 
|---|---|
| AsyncHandlerMethodReturnValueHandler | An extension of  HandlerMethodReturnValueHandlerfor handling async,
 Future-like return value types that support success and error callbacks. | 
| HandlerMethodArgumentResolver | Strategy interface for resolving method parameters into argument values
 in the context of a given  Message. | 
| HandlerMethodReturnValueHandler | Strategy interface to handle the value returned from the invocation of a
 method handling a  Message. | 
| Class | Description | 
|---|---|
| AbstractAsyncReturnValueHandler | Convenient base class for  AsyncHandlerMethodReturnValueHandlerimplementations that support only asynchronous (Future-like) return values
 and merely serve as adapters of such types to Spring'sListenableFuture. | 
| AbstractExceptionHandlerMethodResolver | Cache exception handling method mappings and provide options to look up a method
 that should handle an exception. | 
| AbstractMethodMessageHandler<T> | Abstract base class for HandlerMethod-based message handling. | 
| CompletableFutureReturnValueHandler | Support for  CompletableFuture(and as of 4.3.7 alsoCompletionStage)
 as a return value type. | 
| HandlerMethodArgumentResolverComposite | Resolves method parameters by delegating to a list of registered
  HandlerMethodArgumentResolvers. | 
| HandlerMethodReturnValueHandlerComposite | A HandlerMethodReturnValueHandler that wraps and delegates to others. | 
| InvocableHandlerMethod | Extension of  HandlerMethodthat invokes the underlying method with
 argument values resolved from the current HTTP request through a list ofHandlerMethodArgumentResolver. | 
| ListenableFutureReturnValueHandler | Support for  ListenableFutureas a return value type. | 
| ReactiveReturnValueHandler | Support for single-value reactive types (like  MonoorSingle)
 as a return value type. | 
| Exception | Description | 
|---|---|
| MethodArgumentResolutionException | Common exception resulting from the invocation of
  HandlerMethodArgumentResolver. |