Issue converting from Spring Security XML config to Java Config - j_spring_security_check not found

I'm currently trying to convert from using the Spring Security XML configuration to the Java class based configuration.

I am using Spring MVC and Spring Security version 3.2.6.RELEASE

I think I've done all the mapping right but it's still not working. When submit my login form I get a 404 for /j_spring_security_check.

Here is the XML config:

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://ift.tt/1c8inpe"
    xmlns:beans="http://ift.tt/GArMu6" xmlns:xsi="http://ift.tt/ra1lAU"
    xsi:schemaLocation="http://ift.tt/GArMu6
    http://ift.tt/QEDs1e
    http://ift.tt/1c8inpe
    http://ift.tt/1epvZ6L">

    <global-method-security pre-post-annotations="enabled"/>

    <beans:bean id="encoder" class="org.springframework.security.crypto.password.StandardPasswordEncoder">
    </beans:bean>

    <beans:bean id="rememberMeServices" class="org.springframework.security.web.authentication.rememberme.TokenBasedRememberMeServices">
        <beans:property name="userDetailsService" ref="myUserDetailsService"/>
        <beans:property name="key" value="MYKEY"/>
        <beans:property name="cookieName" value="REMEMBER_ME" />
    </beans:bean>

    <http auto-config="true" use-expressions="true">

        <form-login login-page="/login"
            default-target-url="/userHome"
            authentication-failure-url="/error-login" />
        <logout logout-url="/logout" logout-success-url="/" />

        <remember-me key="MYKEY" services-ref="rememberMeServices"/>
    </http>

    <authentication-manager>
        <authentication-provider user-service-ref="myUserDetailsService">
            <password-encoder ref="encoder" />
        </authentication-provider>
    </authentication-manager>

</beans:beans>

Here is my attempt to convert this to Java Config

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled=true)
public class SecurityConfig extends WebSecurityConfigurerAdapter
{
    @Resource(name="myUserDetailsService")
    private UserDetailsService myUserDetailsService;

    @Bean
    public StandardPasswordEncoder encoder()
    {
        return new StandardPasswordEncoder();
    }

    @Bean
    public TokenBasedRememberMeServices rememberMeServices()
    {
        TokenBasedRememberMeServices services = new TokenBasedRememberMeServices("MYKEY", myUserDetailsService);
        services.setCookieName("REMEMBER_ME");
        return services;
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .formLogin()
                .loginPage("/login")
                .defaultSuccessUrl("/userHome")
                .failureUrl("/error-login")
                .loginProcessingUrl("/j_spring_security_check")
            .and()
            .logout()
                .logoutUrl("/logout")
                .logoutSuccessUrl("/")
            .and()
            .rememberMe()
                .key("MYKEY")
                .rememberMeServices(rememberMeServices());
    }

    @Autowired
    public void registerAuthentication(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService).passwordEncoder(encoder());
    }
}

All I am doing is @ImportResource("classpath:spring-security.xml") from my WebAppConfig file and adding the Java config class instead but when I do this I get page not found for /j_spring_security_check.

What am I missing?