#Valid annotation not working on Dto class - Spring Boot - spring-boot

Question

I want validate my CustomerDTO using #Valid annotation.but also being validated at the same time using the #Valid annotation but it doesn't work, please help me.
This is my controller:
import lk.navishka.loginWithSecuruty.dto.CustomerDto;
import lk.navishka.loginWithSecuruty.entity.Customer;
import lk.navishka.loginWithSecuruty.service.CustomerService;
import lk.navishka.loginWithSecuruty.util.StandradResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import javax.validation.Valid;
#RestController
#CrossOrigin
public class CustomerController {
#Autowired
CustomerService customerService;
#RequestMapping(value = {"/register"})
public ResponseEntity saveCustomer(#Valid #RequestBody CustomerDto customer){
customerService.saveCustomer(customer);
StandradResponse success = new StandradResponse(200, "success", null);
return new ResponseEntity(success, HttpStatus.OK);
}
}
this is My CustomerDTO class
import lombok.*;
import javax.persistence.Column;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import java.util.ArrayList;
#AllArgsConstructor
#NoArgsConstructor
#Getter
#Setter
#ToString
public class CustomerDto {
#NotNull
#Size(min = 9, message = "Nic have at least 9 characters ")
private String nic;
private String address;
#NotNull
#Size(min = 5, message = "FirstName have at least 5 characters ")
private String firstName;
#NotNull
#Size(min = 5, message = "LastName have at least 5 characters ")
private String lastName;
private ArrayList<UserDto> user = new ArrayList<>();
}
this is my ErrorDetails class
import java.util.Date;
public class ErrorDetails {
private Date timestamp;
private String message;
private String details;
public ErrorDetails(Date timestamp, String message, String details) {
super();
this.timestamp = timestamp;
this.message = message;
this.details = details;
}
public Date getTimestamp() {
return timestamp;
}
public void setTimestamp(Date timestamp) {
this.timestamp = timestamp;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public String getDetails() {
return details;
}
public void setDetails(String details) {
this.details = details;
}
}
this my ExceptionHandler class
import lk.navishka.loginWithSecuruty.util.ErrorDetails;
import lk.navishka.loginWithSecuruty.util.StandradResponse;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import java.util.Date;
#ControllerAdvice
public class ExceptionHandler {
//handling custom validation error
#ExceptionHandler(MethodArgumentNotValidException.class)
public ResponseEntity<?> customValidationErrorHandling(MethodArgumentNotValidException exception){
ErrorDetails errorDetails = new ErrorDetails(new Date(),"Validator Error", exception.getBindingResult().getFieldError().getDefaultMessage());
return new ResponseEntity<>(errorDetails, HttpStatus.BAD_REQUEST);
}
}
i use meven this is Pom.xml file
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>lk.navishka</groupId>
<artifactId>LoginWithSecuruty</artifactId>
<version>1.0.0</version>
<packaging>jar</packaging>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.2</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<version>2.4.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.4.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-jpa -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.4.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.23</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>2.4.2</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.18</version>
<scope>provided</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.modelmapper/modelmapper -->
<dependency>
<groupId>org.modelmapper</groupId>
<artifactId>modelmapper</artifactId>
<version>2.3.9</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.validation/validation-api -->
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>2.0.1.Final</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>7.0.1.Final</version>
</dependency>
<!--security-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>0.9.1</version>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.3.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
This is the JSON value that i use with postman
{
"nic" : "656v",
"address" : "polpitiya",
"firstName" : "nn",
"lastName" : "",
"user": [{
"userName":"username1",
"email":"sample#gmail.com",
"password":"1234"
}]
}

Answer 1

Try the 6.2.0.final version of hibernate-validator, it will work.
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>6.2.0.Final</version>
</dependency>