spring-boot-rest/spring-boot-modules/spring-boot-mvc-3/src/main/java/com/baeldung/springvalidation/ServletInitializer.java

package com.baeldung.springvalidation;

import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

public class ServletInitializer extends SpringBootServletInitializer {

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(SpringValidationApplication.class);
    }
}