[FIXED] What is purpose of such interface who has all the default methods inside

Issue

for reference check this interface : org.springframework.web.servlet.config.annotation.WebMvcConfigurer

This interface has all the default method with empty body.

why they just not declared interface instead of empty body in interface??

Solution

This interface has default callback methods which can be implemented to customize the default configuration.Previously an abstract class WebMvcConfigurerAdapter implemented WebMvcConfigurer but now WebMvcConfigurerAdapter class is deprecated and the WebMvcConfigurer interface itself has default methods.

Answered By - Arghya Sadhu
Answer Checked By - Timothy Miller (JavaFixing Admin)