4.0.0 com.baeldung.spring-boot-modules spring-boot-modules 1.0.0-SNAPSHOT spring-boot-validations spring-boot-validations Demo of Validations in Spring Boot org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-starter-validation org.springframework.boot spring-boot-maven-plugin