Spring boot thymeleaf (field.hasError always false) - spring

Question

I am building a web application and as part of my application, I am using Spring boot with Thymeleaf.
Spring version: 2.5.6, JDK: 17
When I try to submit form with some expected errors in input, the binding result identifies the errors and prints in the controller but in Thymeleaf when I check for errors nothing shows up.
POM.XML
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>17</java.version>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.6</version>
<relativePath />
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
Application.properties
spring.datasource.url=jdbc:mysql://localhost:3306/unknown
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.testWhileIdle=true
spring.datasource.validationQuery=SELECT 1
spring.jpa.show-sql=true
spring.jpa.hibernate.ddl-auto=update
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
spring.sql.init.mode=never
spring.thymeleaf.cache=false
spring.thymeleaf.check-template=true
spring.thymeleaf.check-template-location=true
spring.thymeleaf.enabled=true
spring.thymeleaf.prefix=classpath:/templates/
spring.thymeleaf.suffix=.html
logging.level.org.springframework=INFO
logging.level.org.thymeleaf=ERROR
logging.level.org.springframework.boot=ERROR
HMTL with Thymeleaf:
<form class="row mb-0" action="#" th:action="#{/post}" th:object="${formData}" method="post">
<div class="col-md-6 form-group">
<label for="name">Name <small>*</small></label>
<label th:if="${#fields.hasErrors('name')}" th:errors="*{name}" class="validation-message"></label>
<input type="text" id="name" th:field="*{name}" class="sm-form-control" />
</div>
<div class="col-md-6 form-group">
<label for="email">Email <small>*</small></label>
<label th:if="${#fields.hasErrors('email')}" th:errors="*{email}" class="validation-message"></label>
<input type="email" id="email" th:field="*{email}" class="sm-form-control" />
</div>
<div class="w-100"></div>
<div class="col-md-6 form-group">
<label for="phone">Phone</label>
<label th:if="${#fields.hasErrors('phone')}" th:errors="*{phone}" class="validation-message"></label>
<input type="text" id="phone" th:field="*{phone}" class="sm-form-control" />
</div>
<div class="col-md-6 form-group">
<label for="service">Services</label>
<label th:if="${#fields.hasErrors('service')}" th:errors="*{service}" class="validation-message"></label>
<select id="service" class="sm-form-control" th:field="*{service}" >
<option value="">-- Select One --</option>
<option th:each="service : ${T(com.utterlydesi.web.constant.Service).values()}"
th:value="${service}"
th:text="${service}">service
</option>
</select>
</div>
<div class="w-100"></div>
<div class="col-12 form-group">
<label for="title">Title <small>*</small></label>
<div class="alert alert-warning" th:if="${#fields.hasErrors('title')}" th:errors="*{title}"></div>
<input type="text" id="title" th:field="*{title}" class="sm-form-control" />
</div>
<div class="col-12 form-group">
<label for="description">Description <small>*</small></label>
<div class="alert alert-warning" th:if="${#fields.hasErrors('description')}" th:errors="*{description}"></div>
<textarea class="required sm-form-control" id="description" name="template-contactform-message" rows="6" cols="30" th:field="*{description}"></textarea>
</div>
<div class="col-12 form-group">
<button class="button button-3d m-0" type="submit" id="add-post-submit" value="submit" th:text="Submit"></button>
</div>
<div th:if="${result != null}">
<span class="alert alert-primary" role="alert" th:utext="${result}"></span>
</div>
<ul th:if="${#fields.hasErrors('*')}">
<li th:each="error : ${#fields.errors('*')}" th:text="${error}">error</li>
</ul>
<ul th:if="${#fields.hasErrors('global')}">
<li th:each="error : ${#fields.errors('global')}" th:text="${error}">error</li>
</ul>
</form>
Controller:
#Controller
public class PostController {
#GetMapping(value = {"/post"})
public String post(Model model) {
model.addAttribute("formData", new PostAdd());
return "post";
}
#PostMapping("/post")
public String addPost(#ModelAttribute("formData") #Valid PostAdd formData, BindingResult bindingResult, Model model) {
try {
System.out.println(formData.toString());
if (bindingResult.hasErrors()) {
System.out.println("2");
System.out.println(bindingResult.hasErrors() + " " + bindingResult.hasFieldErrors("description"));
System.out.println(model.asMap());
model.addAttribute("result", "There was an issue with registration. Please corrected the fields highlighted in red");
return "post";
} else {
System.out.println("3");
//model.addAttribute(POST_ADD_OBJ_KEY, new PostAdd());
//model.addAttribute("result", "Post added successfully");
}
System.out.println(bindingResult.hasErrors() + " " + bindingResult.hasFieldErrors("description"));
return "redirect:/index";
} catch (Exception e) {
e.printStackTrace();
return "redirect:/index";
}
}
public PostController() {
}
}
PostAdd.java
#Data
public class PostAdd {
#NotEmpty(message = "*Please provide a name")
private String name;
#Email(message = "*Please provide a valid Email")
#NotEmpty(message = "*Please provide an email")
private String email;
#Length(min = 10, message = "*Your phone number must have at least 10 characters")
#NotEmpty(message = "*Please provide a valid phone number")
private String phone;
#NotNull(message = "*Please select a valid service")
private Service service;
#Length(min = 5, message = "*Please add a more descriptive title")
#NotEmpty(message = "*Please provide a title")
private String title;
#Length(min = 100, message = "*Please make your description more descriptive. At least 100 characters is required")
#NotEmpty(message = "*Please enter description")
private String description;
}
SOP output from controller:
PostAdd(name=First Middle Last, email=fml#gmail.com, phone=11111111111, service=null, title=11, description=111)
2
true true
{formData=PostAdd(name=First Middle Last, email=fml#gmail.com, phone=10123456789, service=null, title=11, description=111), org.springframework.validation.BindingResult.formData=org.springframework.validation.BeanPropertyBindingResult: 3 errors
Field error in object 'formData' on field 'description': rejected value [111]; codes [Length.formData.description,Length.description,Length.java.lang.String,Length]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [formData.description,description]; arguments []; default message [description],2147483647,100]; default message [*Please make your description more descriptive. At least 100 characters is required]
Field error in object 'formData' on field 'service': rejected value [null]; codes [NotNull.formData.service,NotNull.service,NotNull.com.utterlydesi.web.constant.Service,NotNull]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [formData.service,service]; arguments []; default message [service]]; default message [*Please select a valid service]
Field error in object 'formData' on field 'title': rejected value [11]; codes [Length.formData.title,Length.title,Length.java.lang.String,Length]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [formData.title,title]; arguments []; default message [title],2147483647,5]; default message [*Please add a more descriptive title]}
What I have tried so far based on some other posts I have seen on Stackoverflow?
Downgrade to JDK 8
Downgrade to Spring boot less than 2.3.0
Add #EnableWebMVC
Replaced #PostMapping with #RequestMapping
Switched places of #Valid with #ModelAttribute