Spring boot 2.4.0 The type HandlerInterceptorAdapter is deprecated

As of Spring 5.3 in favor of implementing HandlerInterceptor and/or AsyncHandlerInterceptor directly.

Spring doc

So,

extends HandlerInterceptorAdapter -> implements HandlerInterceptor

Earlier - HandlerInterceptor and HandlerInterceptorAdapter In the first one we need to override all three methods: preHandle(), postHandle() and afterCompletion(), In the second we may implement only required methods.

Now in latest version , we can implement directly handlerInterceptor no need of adaptor we may implement only required methods.