Deprecation of WebMvcConfigurerAdapter class from Spring MVC 5

Notice

I wrote this article and was originally published on Qiita on 27 August 2019.

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Thanks to feature of defining default method in interface in Java 8, start from Spring MVC 5, configuration by using org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter is not necessary. Just using org.springframework.web.servlet.config.annotation.WebMvcConfigurer interface and implement functions you need.