Spring Custom AuthenticationProvider never invoked - 404 error on http://localhost:8080/igloo/j_spring_security_check - spring

Question

I am trying to get an example of custom j_spring_security_check working on tomcat 7.0.47. Spring MVC goes to login page ok but gives error after clicking submit - what I am expecting is spring to fill in the user roles and then go to main.jsp.
spring main config:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<!-- ############################################# -->
<context:component-scan base-package="frostbyte.igloo" />
<!-- ############################################# -->
<mvc:resources mapping="/resources/**" location="/resources/"/>
<!-- ############################################# -->
<mvc:annotation-driven/>
<!-- ############################################# -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
<property name="prefix" value="WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
<!-- ############################################# -->
<bean id="messageSource"
class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<property name="basename" value="classpath:messages"></property>
<property name="defaultEncoding" value="UTF-8"></property>
</bean>
<!-- ############################################# -->
</beans>
spring security config:
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.2.xsd">
<!-- ############################################# -->
<beans:bean id="FrostByteAuthenticationProvider" class="frostbyte.igloo.jsp.custom.FrostByteAuthenticationProvider"></beans:bean>
<authentication-manager alias="authenticationManager">
<authentication-provider ref="FrostByteAuthenticationProvider"></authentication-provider>
</authentication-manager>
<!-- ############################################# -->
<http auto-config="true" use-expressions="true">
<form-login login-processing-url="/login"
login-page="/login"
default-target-url="/main"
username-parameter="j_username"
password-parameter="j_password"
authentication-failure-url="/login?auth=fail"/>
<intercept-url pattern="/login" access="permitAll"></intercept-url>
<intercept-url pattern="/logout" access="permitAll"></intercept-url>
<intercept-url pattern="/**" access="hasRole('ADMIN')"/>
<logout logout-url="/logout" logout-success-url="/logout_success"></logout>
</http>
<!-- ############################################# -->
</beans:beans>
the AuthenticationProvider (non of these log messages ever get printed) :
package frostbyte.igloo.jsp.custom;
import java.util.ArrayList;
import java.util.List;
import org.apache.log4j.Logger;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import frostbyte.common.FrostbyteRole;
import frostbyte.common.FrostbyteUser;
public class FrostByteAuthenticationProvider implements AuthenticationProvider
{
private static final Logger LOG = Logger.getLogger(FrostByteAuthenticationProvider.class);
#Override
public boolean supports(Class<?> authentication)
{
LOG.error("FrostByteAuthenticationProvider : supports : Marker 1");
System.out.println("FrostByteAuthenticationProvider : supports : Marker 1");
return true;
}
#Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException
{
LOG.error("FrostByteAuthenticationProvider : authenticate : Marker 1");
System.out.println("FrostByteAuthenticationProvider : authenticate : Marker 1");
Authentication rtn = null;
String username = authentication.getName();
String password = authentication.getCredentials().toString();
LOG.error("FrostByteAuthenticationProvider : authenticate : Marker 10 : username = "+username);
LOG.error("FrostByteAuthenticationProvider : authenticate : Marker 20 : password = "+password);
FrostbyteUser user = new FrostbyteUser(); //for test everything validates
user.setUsername(username);
user.getRoles().add(new FrostbyteRole("ADMIN"));
LOG.debug("Authenticate : Marker 100");
//if (user.getUsername().equalsIgnoreCase("username"))
if (true)
{
LOG.debug("Authenticate : Marker 200");
if (true)
//if (password.equalsIgnoreCase(user.getPassword()))
{
LOG.debug("Authenticate : Marker 300");
List<GrantedAuthority> grants = new ArrayList<GrantedAuthority>();
for (FrostbyteRole _role:user.getRoles())
{
if (_role.equals("ADMIN"))
{
for ( String __role : _role.getRoles() )
{
grants.add(new SimpleGrantedAuthority(__role.toUpperCase()));
}
}
}
rtn = new UsernamePasswordAuthenticationToken(username, password, grants);
LOG.debug("Authenticate : Marker 898,000 : rtn = "+ rtn);
}
LOG.debug("Authenticate : Marker 899,000 : rtn = "+ rtn);
}
LOG.debug("Authenticate : Marker 900,000 : rtn = "+ rtn);
return rtn;
}
}
the login jsp:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%# include file="/WEB-INF/jsp/include.jsp" %>
<meta http-equiv="pragma" content="no-cache">
<html>
<head>
<title></title>
<link rel="stylesheet" href="resources/styles.css" type="text/css" media="screen" />
<style type="text/css"></style>
</head>
<body>
request.getAttribute("message") = <%= request.getAttribute("message") %>
<br />
request.getParameter("message") = <%= request.getParameter("message") %>
<form action="<c:url value = "/j_spring_security_check" />" method="post">
<br /><br /><br />
<br /><br /><br />
<br />
<div class="containerCenterAlign">
<div class="container">
<div class="titleClass">Igloo<br /><div class="errorMessage"><%= message %></div></div>
<ul class="loginUL">
<li class="loginLeft">
<label class="loginLabel" for="j_username">Username</label>
<input id="username" name="j_username" class="loginText" type="text" value="" maxlength="150" />
<label class="loginLabel" for="j_password">Password</label>
<input id="password" name="j_password" class="loginText" type="password" value="" maxlength="150" />
</li>
<li class="loginRight">
<input type="submit" name="submit" id="submit" value="Login" class="loginSubmit" />
</li>
</ul>
<div style="clear: both; height: 2px;"></div>
</div>
</div>
</form>
</body>
</html>
include.jsp:
<%# page language="java" contentType="text/html;charset=UTF-8"%>
<%# page session="false"%>
<%# page import="java.io.*" %>
<%# page import="java.util.*" %>
<%# page import="frostbyte.*" %>
<%# page import="org.apache.log4j.*" %>
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%# taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%# taglib prefix="s" uri="http://www.springframework.org/tags"%>
<%# taglib prefix="sform" uri="http://www.springframework.org/tags/form"%>
<%# taglib prefix="frostbyte" uri="http://frostbyte/tags" %>

Answer 1

I managed to stumble across the fix by removing
login-processing-url="/login"
I am posting these results here since its almost impossible to find good spring tutorials, even in the 4 spring books I have. Note I also had to add filter for the resources