Custom Login jsp + spring boot security

I'm just learning all about spring and I was triying to do my own project but instead of use thymeleaf I'll use JSP. I have an example running with spring boot + spring security and it own custom login. I do the same, but instead of html+thymeleaf, I'm using jsp but the custom login is not showing, always appear the default spring security login, any help?

This is the JSP:

<!-- Login Form -->
				<form action="${pageContext.request.contextPath}/authenticateTheUser" 
					  method="POST" class="form-horizontal">

				    <!-- Place for messages: error, alert etc ... -->
				    <div class="form-group">
				        <div class="col-xs-15">
				            <div>
							
								<!-- Check for login error -->
							
								<c:if test="${param.error != null}">
									
									<div class="alert alert-danger col-xs-offset-1 col-xs-10">
										Invalid username and password.
									</div>
	
								</c:if>
									
								<!-- Check for logout -->

								<c:if test="${param.logout != null}">
									            
									<div class="alert alert-success col-xs-offset-1 col-xs-10">
										You have been logged out.
									</div>
							    
								</c:if>
								
				            </div>
				        </div>
				    </div>

					<!-- User name -->
					<div style="margin-bottom: 25px" class="input-group">
						<span class="input-group-addon"><i class="glyphicon glyphicon-user"></i></span> 
						
						<input type="text" name="username" placeholder="username" class="form-control">
					</div>

					<!-- Password -->
					<div style="margin-bottom: 25px" class="input-group">
						<span class="input-group-addon"><i class="glyphicon glyphicon-lock"></i></span> 
						
						<input type="password" name="password" placeholder="password" class="form-control" >
					</div>

					<!-- Login/Submit Button -->
					<div style="margin-top: 10px" class="form-group">						
						<div class="col-sm-6 controls">
							<button type="submit" class="btn btn-success">Login</button>
						</div>
					</div>

					<!-- I'm manually adding tokens ... Bro! -->

					<input type="hidden"
						   name="${_csrf.parameterName}"
						   value="${_csrf.token}" />
					
				</form>

The configuration:

package com.crm.config;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

@Configuration
@EnableWebSecurity
public class DemoSecurityConfig extends WebSecurityConfigurerAdapter {

	// add a reference to our security data source
	
	@Autowired
	@Qualifier("securityDataSource")
	private DataSource securityDataSource;
	
	
	@Override
	protected void configure(AuthenticationManagerBuilder auth) throws Exception {

		auth.jdbcAuthentication().dataSource(securityDataSource);
		
	}

	@Override
	protected void configure(HttpSecurity http) throws Exception {

		System.out.println("aplicando configuracion");
		http.authorizeRequests()
		.antMatchers("/employees/showForm*").hasAnyRole("MANAGER", "ADMIN")
		.antMatchers("/employees/save*").hasAnyRole("MANAGER", "ADMIN")
		.antMatchers("/employees/delete").hasRole("ADMIN")
		.antMatchers("/employees/**").hasRole("EMPLOYEE")
		.antMatchers("/resources/**").permitAll()
		.antMatchers("/showMyLoginPage").permitAll()
		.and()
		.formLogin()
			.loginPage("/showMyLoginPage")
			.loginProcessingUrl("/authenticateTheUser")
			.permitAll()
		.and()
		.logout().permitAll()
		.and()
		.exceptionHandling().accessDeniedPage("/access-denied");
		
	}
		


}

And the controller:

	@GetMapping("/showMyLoginPage")
public String showMyLoginPage() {
	
	return "fancy-login";
	
}

// add request mapping for /access-denied

@GetMapping("/access-denied")
public String showAccessDenied() {
	
	return "access-denied";
	
}

Here you have the link in github
https://github.com/a343/srping

Many thanks in advance.

Regards