Generate swagger JSON file at compile time for springfox based project

Question

I have working project which is using springfox to generate API documentations.

I want to generate swagger.json at compile time.

following is sample springfox configuration,

@Configuration
@EnableSwagger2
public class SwaggerConfig {
    @Bean
    public Docket productApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()                 
                .apis(RequestHandlerSelectors.basePackage("com.abc.xyz"))
                .paths(regex("/*.*"))
                .build();
    }
}

FYI : I have also tried https://github.com/kongchen/swagger-maven-plugin plugin but it's not working

Solution

This is achieved using JUnit test case, follow https://github.com/springfox/springfox/issues/1959 for more details.