Bean validation in Spring Webflux.fn

Question

I'm trying to implement standard bean validation in our project which is using Spring Webflux with functional endpoints.

Spring Boot Version: 2.7.14 Spring Boot Starter Validation: 2.7.14

<dependency> 
    <groupId>org.springframework.boot</groupId> 
    <artifactId>spring-boot-starter-validation</artifactId>
    <version>2.7.14</version>
</dependency>

I tried the steps on below link: https://docs.spring.io/spring-framework/reference/core/validation/beanvalidation.html

DTOObject:

@Data
public class DTOObject {
   @NotBlank
   private String name;
}

I created a bean of LocalValidatorFactoryBean.clas

    @Bean
    public LocalValidatorFactoryBean validator() {
        return new LocalValidatorFactoryBean();
    }

I injected the Validator bean in my Request handler class:

@Inject
private Validator validator;

Then, I called validate method on the DTO object inside a Mono.map()/flatmap():

validator.validate(dtoObject);

However, the validation isn't happening.

Can someone please let me know what I'm missing.